Organ Is Ing Knowledge Ch 8

: alphabetical displa

,'sraphic classi{ica.

i

its examples t-,C. Much of mod.. :-,d itional classifica

Bibl iograph

. :heory and DDC .. ,ne hand which b -

ic classification

schemes

---:t rvas entirely der.

-.:irly unjust to I)i , , ntodern ideas. i

\TRODUCTION

i-: . -,.

classification systc

-'-.

:r nefw'orks. Catalr,;

t live llinglelr; Hanic "

-.

-

ir

esaurus/Classifito

:

three major general classification schemes are DDC, its offspring UDC, and These will be described in some detaii in this section. Two other schemes: : - {and its successor BC2) and CC, will be discussed briefly because of their -.,rence on current theory and practice. At the end of this chapter you will:

-.-

o

Institute of l,lduca::

r . a distance. Catalug: .

-:rrlis.

London: Brtu,k.

. cooperation befir,r: rnotic.trt Science. t

graphic classificati, ''r ic Classification,'J, ri)11:

Butterworths.

bv BC and CC

I

:

be aware of the arguments for and against modifying published classiflcation schemes understand the place of special classification schemes.

r -

lrOWer. '.t

,.rnderstand the structure and principal features of the three major general classification schemes appreciate the salient contributions to classification theory and practice made

-.e

three major schemes were all introduced before the ideas of facet analysis

:re developed. They are thus basically enumerative schemes, though ali have - me analytico-synthetic features. In the case of UDC these are very extensive, :SS So with DDC - though DDC has embraced the principles of facet analysis .:d is incorporating more synthetic features. With LCC they are a minor feature.

:brarlr Association.

THE DEWEY DECIMAL CLASSIFICATION 1876 Melvil Dewey, a 2S-year-old college librarian, published anonymously A llossi/ication and Subject Index for Cataloguing and Arranging the Books and Pomphlets of a Library, with 12 pages of introduction, 12 pages of tables and 18 -,rases of index. It had three novel features:

-r

215

ACCESS

o

r

o

Books were to be shelved by relative instead of flxed location. With flr..

location (which can still be seen in a few places), books were giveir fixed place on a numbered shelf, and any new books on the subject rep:sented by that shelf had to be flled at the end. When the shelJ became f'-. a llew sequence had to be started elsewhere. With relative iocation, i: books are numbered in relation to each other and not to the shelves. T'whole collection could grow as required, and a more detailed subject spec. cation became possibie - I)ewey's 999 classes were a great advance : anything that had gone before. A simple decimal notation instead of the cumbersome notations (olt,:. involving roman numbers) previously used. Indeed, Dewey is said to ha'. thought of the notation first. Certainly the notation was an important facr in the early and continued success of the scheme. A detailed subject index, made necessary by the detail of the classificatio:'

The second edition of 1885 established three further principles:

o o

o

Decimal subdivision: the first edition used the decimal point only to introcluca book number. This greatly increased the ability of the scheme to suppc,:" specific detail. Integrif of numbers: Dewey had made some quite sweeping relocations :: the second edition, and to sugar the pill announced that future editions woulexpand but not relocate: a policy that was followed until 1951. This polic however reassuring to users and potential users, inevitably meant that th structure of the scheme became more and more outmoded over time. Synthesis, in the shape of (a) a table of 'form divisions' representing son:of the common facets, which could be appended to any number; and (b

'divide like' instructions, the forerunner of the present 'add' instruction. where all or part of one number may be added to another in order to specii, an extra facet. 1951 it was clear that the policy of integrity of numbers could not b. maintained, but that each new edition would have to radically restructure on,, or more classes. Complete revision has to date been applied to: 546 and 5.1

By

,

Inorganic and Organic chemistry (sixteenth edition, 1958); 150 Psychologl (seventeenlh edition, 1965); l'|40 law and 510 Mathematics (eighteenth edition. 1971); 301-307 Sociolog-v and 324 Political process (nineteenth eclition, 1979): 780 Music (twentieth edition, 1989); and 350-354 I']ublic administration, 57(' Biology, 583 Dicotyledons (twenff-first eclition, 1996). These complete revisions were formerly known as phoenix schedules. Also, classes may be extensivell' revisecl, keeping the main outline but reworking subdivisions. 370 Education and all the rest of 570-590 l,ife sciences were thus revisecl in the twentv-first 216

I]IBIIOGRAPHIC CLASSIFIC,{I'ION SCHEMES

:

'

:clative location, . ,i to the shelves. T---

ill,t

ED U LES

l''r

sion of classes

location. With fir... ,lOoks were giver: , , ,n the subject rep::rt shelf became i'.

:c:ailed subject spec_-

r ,

a great advance

,rte notations

.

(ofr=

lrn-ef is said to ha'. as an important fac.

ii

,,f the classificatir

.iiples: r,-,int only to introclu - -

:e scheme to supp .' F,'eeping relocations -

I iuture editions wou,

i:til

_

This poli: r-itably meant that r:1951.

: , :r. and 001-006 Knowledge,

systems and data processing in the twentieth; .tb has had to be further revised and expanded in the twentv-flrst edition. =-

I

DDC the notation is everything. This may seem an odd way to start a in DDC, but the evidence is that Dewey -. - his classification to the notation rather than the other way round. The :'...-ificent simplicity of a pure numeric notation is achieved at the cost of the - .. tightly constricted notational base of any classiflcation. Each stage in :' . .'-rbdivision of the universe of knowledge permits only nine divisions. A .-.:cligit notation allows for only 999 classes, and Dewey used them all. As "" : :riverse is not organized on regular decimal lines, it is inevitable that each -' .:rbdivision will more often than not include topics from more than one facet - .:bl-acet. With very few exceptions, classes are divided top-down on the ,:-erative principle. This again has resulted in many classes being divided ,, :ding to more than one principle of division at a time. This is further - -:ssed below. a ,ther way of saving notational space is the use of pseudo-hierarchies. One --. is used as an umbrella heading for a miscellaneous collection of loosely

.-.

instructior..

:..: in order to spec_-:,bers could not

:.

restructure c,:,to: 546 and i=1_.d - --:-111-

:" : 150 Psycholc,; . =ighteenth editi, _ .:::tth edition, ,.

197:.

tnrinistration, .i-

>r .-, )ntplete revisir,:.. .ar- be extensir',-,= . :.s. 370 Educati, r .r the twenty-fir:

Commerce.communications.transoortation

Water, air, space transportation Sewing, clothing, management of personal and family living :+{r.7 Management of personal and family living. Grooming 19.28 [Vehicle] tests, driving, maintenance and repair.

":1' numberi and r:

-

--iated topics. Some examples are:

':r) :7 :-ti

- ded over time. : s representing soi:_-

:::'add'

.-.

" --:ssion of the division of classes

- . -erv places

the original division of classes omitted steps in hierarchies and

--:u space in the notation for a necessary broader term to be added later. -. :nstance is the sequence 385-388, which denoted rail, canal, sea and land ,- :port without providing a place for transportation generally. For some years -,-'he was found at 380.5, which preserved the general-to-special order but luced a yawning gap between transportation and its subdivisions. Recently - ,.:\-er, transportation generally has been classed at 388, sacrificing general-.:tcial in order to keep the subject together. Prose literature is another - - ::rce where no provision was originaily made: it is found in a number of " .-:s (808.888,818.08 etc.) but always at the end of the sequence of prose -.-s (essavs. letters etc.).

.

'

'-

217

ACCESS

000 Generalities (88 pages) 100 Philosophy, paraftormal phenomena, psychology (62 pages) 200 Religion (160 pages) 300 Social sciences (549 pages) 400 Linguistics (38 pages; 45 including Table 4, which is specific to thls class) 500 Natural sciences and mathematics (302 pages) 600 Technology (Applied sciences) (508 pages) 700 The arts. Fine and decorative arts (226 pagesi eoo Literature iarrr*rirltr*i-.il ;;1;;; (6t"p;&s; 9G inctudins Table 3, which is specific ro this class)

900 Geography, history and auxiliary disciplines (204 pages)

Figure

8.1

DDC Main Classes

Main classes Advances in knowledge over the past century and a quarter have made a.' unequal development of the main classes inevitable. Figure 8.1 names the classe: and gives an idea of their relative sizes. The classes are based on disciplines with occasional exceptions, notably 770 Photography that includes both technica.

--

ancl artistic aspects.

Facets

Dewey himself had only an inchoate awareness of facets. Consistency in facet structure tended to be subordinated to the notation. Sometimes the notation lent itself to a coherent facet structure, as in classes 400, 800 and 900. More often it did not, causing the facets to be jumbled together. In 370 Education we find:

. . . .

371 Schools and their activities (itself a hotchpotch of assorted facets with Special eclucation tagged on at the end) 372, 373, 37 4 Stages of education: elementary, secondary, adult - with Higher education separated from these at 378 375 Curricula :179 Public policy issues in education.

-,:Ll - ti

mentioned: the arrays are:

. . .

721 Architectural structure

:,

-1.:

.- -:

\\here there is notation left at the end of an array, it may be used for another array with a different principle of division. 720 Architecture has already been

'-

-i

rtf I' .1-: -1.

;-, rl, rg

- .l:n

722-724 Architectural schools and styles

--_ir''_

725-728 Speciflc types of structures

_,:

218

a

Illl

:

:'

:

:-

--

: ,

.i. 1 nar.nes

the

( I.ASSII'l(

A1'l( )N

SC

tl

Irl I I'-:

:ngineering ge0l0gy lNT. Pr0perties, processes, operaiionsl 158 Foundation engineering [Centred heading] [NI]

ixcavation [0perations] loundation nratertals lMaterialsl

1 58 Speci{ic types of f0undations [Centred heading] lKindsl Supporting structures 0ther than f0undations [Key system] 3tructural analysis and design loperationsl Structural analysis [0perations] 176 Loads, siresses, strains Itenlred headingl [Processes] Structural design and speci{ic structural elemenls

Slructural design [0perations] g Specif ic structu ral ele m ents I Parts] .,laterials iin structural engineeringl[Key system, Materials] -nderground c0nstruclion [Key system]

)--.177

,e {ollows siandard crtation order quite closely lacels upwards.

uarter have ntar..

LI( )( ;RAI']HIC

ictural enginee';ng and underground constructior ::undation engineering and engineering geology lKey systeml

:.-

'

I

*

remember that in an lnverted schedule you

c1.,-

irasecl on cliscil-r :rcludes both tecl,:

Figure

-

8.2

Facel slruclure and centred headings in DDC class 624.1

'' I)esien ancl decoration of structurcs alld acctssories.

,:r\- places solne l(ind of orcler is imposecl by the use ttf centrecl headings,

Lonsistency in

s('rve as facet indicators, slttlwing wliere a facet occtlpies a sprea(l of ,n,7'22-724 anrlT'25-728 are exanrples. Irigttre 8.2 is a lxore thoroughgoitlg rlr', mapping the intplied lircet structure onto the schedule. -'c the eighteenth edition cletertlitred efforts have been n-rade to regularizt' ,.tl structure. 5onte classes have lleen crlnlllletcllz revisect. Iilsewhc're, -lities in the tacet structtlre are dealt with in one of the followilg ways:

.

-ctilnes the nor. ,:00 ancl 900.

l'.

In ll70 Erlucatir,:

-ld' instructions, rvhiclt alwa-vs ntake clear the citati
-.ssortecl laccts aclult

- with Hi-

.

..tion. rvith no inclication of where tcl class a work on elementary eclucatiol'l :-specific objectives. I)DC21 has providerl a new class 372.011, with an aclcl to -r).111) denotes Ilducation

,lrl'instruction to r,rscd

fbr anr,.

has alreadv 1:.

this nttmber the subdivisions of l'i70.11.'fhus.

lbr social responsibility,

ancl Elcmentary cdtt-

.,tion l'or social responsibiliry- will be classecl at 372.0115.

is to be pref'erred developnlental ancl 155 is Differe'ntial Class iqnorecl. be is to 'eich

. :-tle.rence instructions, which indicate rvhich lacct

and ps-v-

:.,rlogy; 1llll.9 is Intellige,nce and aptitudes with the instructiott: Class factors :. differential ancl clevclopmental ps1'cholog,v that alfect intelligence and ,::,rifr-icles in 155. In (i24.1 (see Irigure 8.2),6'24.17723 is Ilcans a1d girders. .:rrl (i24.1821 Iron and steel.'fhere is an instruclion at 624.182: Class sptcific

219

ACCI'SS

structural elements in metal irt 624.1772-624.1779, so that Structural ste. girders would be classed at 624.17723. Subfacets or arrays

Arrays were given cavalier treatment by Dewey, and later atternpts to tidy u: the structure have been variably successful. The example in Figure 8.3 shori. part of Sociology, which was completely revised in the eighteenth edition. 3(t.' Social groups has 13 subfacets (Fieure 8.3) Most structural problems in DDC are hangovers from Dewey's original assignment of topics to classes. Some classes, notably 400 language, are quitt consistently constructed. The schedules that have been completely revised als, have a far more regular structure, though the degree of synthesis varies greatli-: 780 Music is almost fully faceted (to the extent that users are said to be put oti by it); 340 law and 350-354 Public aclministration allow a high degree of synthesis. 150 Psychology, 301-307 Sociology and 510 Mathematics on the other hand are thoroughly enumerative. Editors of DDC have to tread a very fine line between what revisions are theoretically desirable and what users are preparecl to accept. 370 Education has been extensively revised in the twenfy-first edition. but has retained many of its structural anomalies. \Vhile there is no shortage of rnodels of good classiflcation structure in education, to incoqrorate thenr would have forcecl users to urakc' hard decisions on whether or not the extensive

.2 .3-.4 .5 .6 .7 .8 .904

.9063 .9065 .9066 .9069

.908 .909

Age groups (2)

Groups by sex (3) Social classes {4) Beligious groups (5) Language groups (t)^,

---. i-:!: _!

,^, ^"^.,^^ (6) Racial, ethnic, nati0nal groups Persons Persons Persons Persons Persons Persons Persons

by by by by by by by

kinship (B) cultural level (9) marital status (10) sexual orientation (11) special social staius (e.g. aliens, offenders) (12) physical and mental characteristics (1) occupation (131

A preference table instructs the classifier which subfacet to choose. Numbers in parentheses rndicate

:62

the preterence order, e.g. black Roman Catholic middle-class male youths within 305.2 (specifically, 305.235). rather than in 305.3, .5, .6 or .8. This being an enumerative classification. arl the other subfacets are ign0red. A faceted classificati0n like BC2 is able t0 specily all subfacets: compare Figure 8.12

Figure

220

8.3

Subfacets in DDC class 305 Social groups

22

ilt

-!

--

)

BIIJ} I -I 0 (

i

:: ln . -r- atttmpts to tidr -- in i"i.qure 8.3 slr -:{hteenth edition,

-,.ri'ey's original as.: Language. are (i. -- mpletely revised ', :'.':.thesis varies grr:, :. are said to be pLr: r high degree oi r . -:rttatics on the r,t. ,r't'ii(l ii verl' finr. -,rl LtSCfS ?f€ pl ellirl .. trvt'nty-first edir. ,..:r'e is no shortag.

:

-

RAPHIC

CI ASSI

I.ICATI0

N" S(.

HE\IES

...llication involvecl is rvorth the candle. Better a halt-hearted revision than

that Structural

,.1t

--.

}

rl)()rale thenr u, the exten-

nollody has the resourc€rs to adopt.

Order

,rf the vagarics of DDC's citation or(ler have alreacl-v been cxaurined. it tnust be statecl that the ...11t:s have about tltem a sturdy pragmatism reinforcetl by an awarclless in - . t'rlitions of classification theory. Time and again it is possible' to flnci :sis ancl stanclarcl citation orcler. Nlore ancl more use is being nlaclc' of syn, - bv rneans of 'add'instructions (see F-igure 8.4), and in nearly every case :'..r'r'. to correcrt atty impression that all is chaos,

---!iic instructi0n in the schedule reads: 'Add to base number

: . -- i

a::2

.8

I

XXX the numbers following YYY in

ct's net nrrhlicitv nrrblic reiations in voluntary 0rganizalions. Class: 659.288

Public relations ln specific kinds ol 0rganizations Add t0 base number 659.2B the numbers following 658.04 in 658.041-658.049. e.g. corporations 65S.285

':: ,-:8 Non-profit organizations -. oeople 'find it helplul t0 draw a verlical line after the base number. The added parl is aligned .-.::n

it, then pulled up t0 tack onto the end ol the base,

:59.281

r- rrot

-

i.e.:

659.2818- 659.288

::: common variant ol the Add instruction is to add the vrhole of the second number t0 the lirst. . -:an only be done where the'Add'instructi0n specifically allows this: anyone attempting t0 string ..:1er two DDC numbers where this is not specilically permitted will soon make nonsense o{ the 'icatlo

n

: .-cle: Public relations management in universities. Class: 659.29378 a:J.2 Public relations 29 ln organizations producing specilic kinds 0t products and setvices Add t0 base number 659.29 notation 001-999

378

Higher education

':::er

variant is synthesis by 'add as instructed' footnotes. An asterisk 0r other mark in the schedules t0 a l00tn0te saying 'Add as instructed undsf followed by the place in the schedules (almosl .:s an earlier place) where there will be lound a lable rn small print beginning 'Add to notation fot -.,- term identified by - [or whatever] as follows':

it:

r parentheses .rin 305.2

Indicat:

(specificat

l

: .-cle: lVarine reinsurance. Class: 368220122 :a3.22 *0cean marine insurance .Add

01

-'? 2

as instructed under 368.1*368.8

General principles

Add t0 01 the numbers following 368.01 in 368.01 1-368 019 Underwriting Reinsurance

Figure

8,4

Synthesis by means

0f'add inslrilcti0ns

221

ACCT SS

the number to be added comes eailier in the schedules

- a sure sign ,. intuitively or c:onsciously, schedule inversion is being applied. 'Add' instructions are applied ad hoc (though the principle involved in drop1 initial digits is very close to BC2's). More systematic synthesis is provi.through the auxiliary tables in Volume 1 of the schedules. These comprise o

o o o

_

.

Table 1: Standard subdivisions, which can be applied to any number ir the schedules. The oldest of the auxiliary tables, covering the common fac. ofform and subject. l-he sequence is chaotic, reflecting the practical diffie_ ties of undertaking a thorough revision. Table 2: Geographical areas etc. The longest by far of the tables. 'fypic;(but not invariably) applied after -09 from Table 1. Tables 3 and 4 are special auxiliary tables for use with class 800 I-iteratL::, and 400 languages respectively. Tables 5 (Racial, ethnic and national groups),6 (Languages) and 7 (GroL::of persons) can only be applied where instructed.

I

:

:,

NOTATION

Dewey Decimal Clasification's notation is at once its greatest strength ancl i.greatest weakness. The concept of numbers used decimally is simple and ur-_. versally understood; but at the same time DDC's constricted base and lopsidc, allocation have led to many excessively long numbers. Another recurring restof the short base is the use of -9 as an overspill class for 'other' topics. This .very common indeed. Examples include:

290 299 629 679 759.9

Comparative religion and other religions Other religions Other branches of engineering Other [manufacturing] products of specific materials [Painting and paintings of] other geographic areas.

Even worse is DDC's practice of allowing the notation to dictate the order o; subjects. Instances have already been given. In some places the notation even dictates the citation order. In particular, DDC's notation cannot satisfactorill accommodate an open-ended list of named persons, so individuals as subjects

can only come at the very end of the citation order. In 800 Literature it is impossible to subdivide works by or about individual authors (other than by a local adaptation of the optional table for Shakespeare at 822.33). The revised 780 Music had as its main model Coates's (1960) Brifish Catalogue of Music Classification Here, composer was the primary facet for treatises on music; but 780 has been unable to follow this. exceot as an ootion at789. 222

I

: I I fr

E I IJ t,IO(,

i - a sure sign ,

.

,

-

^

-

.

.:11.

r\'olved iu clr,,1 :lthesis is prr ,'. '.'lrese courpri:,

:re practical

:

:;keS I

iterature

80B.BB2 [3]

T3B_802

cnpnifin Iitpreirrrpc

[4] T3A-_.--B

individual authors .:

di,,

re tables. T1'p:-1ass 800

Litrr:

*cs)

7 ((lr'

see Manual

atISA-8

+ 02

fetc]

l5l

;Vhere there is no subheading, the number is

to be used for interdisciplinary works.

i,.lbheadings identilying discipline are shown by indentation. ',;Ote the level 0f indentation showing a further subarrangement. =re tables in volume 1 are indexed thus. ::lerence rs made to the manual which {ollows the index.

Figure ancl

\IE

793.735

any nunrbel'

-

H I'

398.6 I1l s98.6 [2]

'clk literature

* .- the conlnon i...

,'

:.ddles

R,\I,HIt t L{:SIFIt.TI-T(I\ >t

8.5

DDC Relalive index

TIABETICAL INDEX

:r- Decirral Classification's index is called a relative inclex: originally, it .s. becarlse it indexecl the new relative as opposc'd to fixed-place classes; 1_

st strength ar. is simple anrl base and lop. rr recurring l-.: :rer' topics. 'l':- -

,terials rl'8&S.

I

.:ctate the ord.

"

- thc notation .

l

.1nnot satisfac: ..'iclrrals

3S Sui)r:

- t(l l,iteraturt :.. (other thatt ' 'l'he rer -1.31]). --atalogue of

)!

,,lSeS On mUSiC.

,,tterl1l because it reiates subjects to tlisciplines. Figure 8.5 shows a samplc r, elltry.

-..:re are also see-alst) references to synclnyms and broader terms, but only :e three or rnore new numb('rs are to be found. '.r CD-llON{ versiol'l Dewey frtr Windrtws has a fulier index than the printecl '., Nevertheless. the inclex does no1 - could not - claim to be exhaustive. 'd, DDC's summary tables rnake it unnecessary to use the inciex except .. urost intractable cases. There are three summary tabies of the whole --:hcation. showing the ten main classes, the hundred clivisions, antl tht: -lhey .ancl sections. 'lhese appear at the beginning of Vrlume 'I'wo. are .tnrentecl by summaries at the beginning of each of the ten main ctlasses .heir divisions, ancl additionally as requirecl - complex sections like 616 - .rses or 621 Applied physics may have u1t to six summary tables each. It is .1 practice lor classifiers to classify from the schedules as far as possible. . the excellent guicling and sumlnary tables, and to keep the index as a last - :-t. Bibliographic databases in USN{ARC format. which have bolh DDC - -:rarks and LCSH hcadings, offer another approach, using LCSH as an cntry ,rularv to l)DC classmarks. :JANIZATION, REVISION AND

USE

of the schenre was assignecl by l)ervey hinrsell to the lake Piacici Club Founclation. a Irot-forllrofit bodl' rvhich he set up 'to restore to ational :'o1

223

ACCESS

helth [sic]and educational efficiency teachers, librarians and other educators moderate means, who have becum [szc] incapacitated by overwork' (Del i Decimal Classification, 14th edn, p. 48). (Simplffied spelling was one of Dewer'. many interests.) The club owned Forest Press, DDC's publisher, which gave tl-. scheme a sound flnancial footing. After some vicissitudes an editorial office u'a: established within the Library of Congress, ensuring both literary warrant f( : the scheme and the inclusion of DDC class numbers in USMARC records. I: 1988 the Forest Press was sold to OCLC, and editorial work is now done by tl-. Library of Congress under contract with OCLC Forest Press. There is a broad:' based Editorial Policy Committee, which includes members from Canada, Au.. tralia and the UK, and advises the editorial team. Other experts are als consulted as required. Dewey Decimal Classification's literary warrant has bee: improved through becoming part of OCLC, as OCLC's Online Union Catalog .. now accessed electronically as part of the revision process. This, being base on a very wide range of working collections, gives a better idea of the range , , titles that libraries actually acquire than could be obtained from a single lega ,

deposit collection. The schedules are published in four well-designed volumes. A Manual, cor. taining detailed class-by-class advice for the classifier, information on majc: revisions, and explanation of classification policy and practice, is included in th.

fourth volume, following the index. New editions are published every seve: years. One or two major divisions are recast completely, with piecemeal alte: ations elsewhere. The major revisions in the current (twenty-flrst, 1996) editic: were described above. Advance notice of changes is published annually i. Decimal Classification Additions, Notes and Decisions, abbreviated to DC&, whic:. is distributed to subscribers. The DDC database does include additional infc,: mation including a wider range of index entries. These appear in the CD-RO\I version, Dewey for Windows - a fine tool for the practising classifier, but tc complex for those learning the scheme. A single-volume abridged edition is published alongside every full editior currently the thirteenth Abridged. There is also a further abridgement: Dert

Decimal Classification for School Libraries. Translations into eight foreign lar. guages are available (most recently Russian), and into at least 30 languages: translations no longer current are included. Although libraries may classi{y ne',', stock by the latest edition of DDC, earlier editions remain important becaus. many libraries are reluctant to reclassify, and thus leave stock classifled b earlier editions long after they have been superseded. The use of DDC in the British National Bibliography has been important i: establishing DDC in British libraries. The British National Bibliography bega, publication in 1950, and from 1971 has been produced from the UKMART database. Normal practice is to apply the latest edition of DDC from the Januar', 224

| |--

-

.-

::ARY

BIBLIO(}RAPHIC C]LASSIFICATION SCHEMES

rs and other educators

.

,

ed by overwork' (Deu;' :iling was one of Dewer' . puhlisher, which gave t:' les an editorial office u'..

b,,th literary warrani : in USMARC records. .-*-'-,rk is now done b1'

t:-

Press. There is a broac nbers from Canado, Au: t tther experts are a.lierary warrant has be. . i-)nline Union Catalog ,. - .'(ss. This, being ba.. :': -cr idea o[ the rang. :::ed from a single leg-

-. umes. A Manual. c t:. rnlbrmation on ma' r.. -it'e, is included in :.-'

:

:ublished €V€f! S€\':. al:.: 1996) edit: -.:rf_v-first. > -ublished annualh --

-:r its publication. There has also been some retrospective conversion of -.:,ier records. There is now a USMARC format for classification data, which ,rporates fuller information about DDC classmarks than was previously avail.-.t. This includes: ,-. --

I

a history of changes behveen editions, making it easier for users to track :elocations :he components of synthesized numbers, making it possible to carry out nachine searches on classes formed by 'add' notes. Thus in the examples rn Figure 8.3 above, a search on 658.048 Non-profit organizations could be :lade to lead to 659.288, which is synthesized from 659.28 and the final digit

o

,,f 658.048.

I

field for centred headings, making it possible to systematize the hierarchical rroadening or narrowing of machine searches on DDC classmarks.

a

--.:se developments are a practical result of the link-up between DDC, the -::ary of Congress and OCLC, and help to ensure the continued success of - C. In other respects, editorial policy is concentrating on:

. r

r.,. nith piecemeal

o .

t::- r iated to DC&, u'h:- ' s - -.ude additional in- -

r

rt ::oear in the CD-R( l r--. :g classifier. but :

'nd

lrr.-- :c every full editi r': abridgement: De:',"

tr- .:', eight foreign ..m . =ast 30 languagr.

5r - :-rcS may classi$' r.'. F rr. inrportant beca---

h,

.tock classified

-

h ,- been importart. td BibliograPhy br;. l.- :'rm the UKNI.I: lrkrr . t lrom the Janu--

,iser convenience: making the schedules easier to apply :egularization: the gradual elimination of irregular developments of standard .ubdivisions which occur at a number of places throughout the schedules ;aceting': the increased use of notational synthesis :nsuring that terminology is kept up to date, for example by replacing :hysically handicapped persons' with 'persons with physical disabilities' ,'atering for international needs, e.g., by reducing the American and Christian -.ias in the classification, and by expanding the area tables and the historical literary periods for a number of countries.

-

-

tsRARY OF CONGRESS GLASSIFICATION

-". detailed classification scheme of the Library of Congress was occasioned : re library's removal to new premises in 1897. The scheme consists of 21 : , :- classes set out in over 50 volumes. Publication began in 1899 and was '- -ally complete by 1910 - apart from class K law, publication of which did r -- rmlrl€nce until 1969 and was not completed until 1993. There are revised -- .. ns of most classes (Q Science is in its seventh edition). Recent editions .:- -:ubiished in the USMARC format for classification data, and the full sched-

:: -

.irg€th€r with LCSH are available as Classifi,cation Plus on CD-ROM. l.-,t scheme's name describes it precisely: it is the classification of the Library - lgress. It exists to serve the needs of that body. It was developed, under

225

ACCESS

the general editorial direction of the Librarian, Herbert Putnam, and his CL . Classifier, Charles Martel, on a class-by-class basis by the staff of the librar, . subject departments, who also implemented the classiflcation. It was, and is. in-house classiflcation. Howeveq as the classification of the world's larg.. library, its suitabili[z to other large academic and research collections was s{ recognized, and was greatly advanced by the library's decision in 1901 to ma..its printed catalogue cards available for sale to other libraries. SCHEDULES

The scheme was based on the long defunct Expansiue classification of Chari=. Ammi Cutter. Its main classes (Figure 8.6) are clearly tailored to the needs the LC, as they were perceived a century ago. Like everlthing else abc, -. LCC, the order of the main classes is thoroughly pragmatic, avoiding the idiosr :" crasies of DDC. Each class was compiled separately, and could be usc: independently. It follows that the classification is almost entirely enumerativr with much repetition of detail, making the schedules very bull'ry in hard copl Classes are divided in a broadly hierarchical manner; but as the scheme u'a.. compiled piecemeal at a time when classification theory barely existed, or. must not expect the consistent application of either hierarchies or a facet strui" ture, even within a single class. As the most enumerative of all the scheme. LCC can only be learnt by practice. It cannot be learnt by the application , n

General works :

n t

Fhilosophy, Psychology, Religion Auxiliary sciences of History hrsrory Geography and Anthropology Social sciences Political science LAW Ld ucati0n

Af trf

!f

usi9

Ftne Ans Language and Literature

qirih.o

Me0tctne

,il:-[-

Agflculture I

ecnn0r00y liililanr cnionno I

Naval science

Bibliography and Library science

Figure

226

8.6

LCC main classes

[

BIBLIO(;RAPHIC CLCSSIFICA IION SCHI]MI'S

F-ltnam, and his ,'". staff of the lib:.-

r,-.' ,.:s. because there are none. I-ibrary of Congress Classification's great

:r

rr-

It w?S, ?tc .: r::: "- the world's 1:--.---'i i-- iollections was - r t::ion in 1901 tc, . -'

: it. and the order and detail ofthe classes have been developed, again by i,; - ,' :-iits. to meet the requirements of an exceptionally large working collection .,--:,-:rg under exacting conditions. There are a number of recurring themes,

rt: ,n.

-: : -r).

i

-

: h is that every

*'-

class exists because subject specialists have perceived the

I

- -.:tg:

r

-- .:ndency to file common form and subject facets before general works on pic. A common sequence (derived from guidelines laid down by Martel)

.-

.

-: i::sification of C:. 'red to the ne.-r-.'rr1'thing else ' r, avoidingthe icr: . and could be -': :rtirely enumer: : :ulky in hard c :'-: as the SChent: ' -,, -" :arely existec r::ies or a facet s,-" r= ,rf all the sch.: -" : :'.' the applicati : a..

-

.

r

-

kind of variant on:

History General works

----habetical subdivision - which purists would object is the negation of . ..ssification - is frequently used, the precise method being by Cutter - :nbers. These allow individual classiflers great flexibility, provided that . -:icient authority control is exercised to avoid cross-classification. F-or - ..-rr.nple, class HJ4653 Income tax - United States - Special, NZ has subdiv.. ,ns that include .C3 Capital gains and .E75 Evasion. Strich subdivision is ' 're used for evasion of capital gains? If a title is published on tax avoidance, - ',i' do we know not to create a new Cutter number for it under .A? In ,.:se r€Sp€cts, the success of LCC depends on its being based on a single .-:horitative institution that applies authority control on behalf of all other

-

_

r

ift{t

rr.r.r€

Periodicals,Societies t,ollections, Dictionaries Theory, Philosophy, Congresses

-:t 5.

of ad hoc synthesis, which never has any application :tside its main class (so there is no one table for the common facets). ..lrthods vary from elaborate tables - class P has a truly wondrous table of .-odivisions under individual authors, separately notated according to the .':rount of notation allocated to an author - to brief one-line instructions to -.i'ide one spread of numbers in the same way as another. -- variable amount

-AIt0N

-' : jeneral pattern of LCC's notation can be observed in the examples

above:

::

'r two (very occasionally three) capital letters followed by up to four digits - -: - numerically rather than decimally. Hospitality is achieved by leaving gaps .-.: notation. S4rere these have been filled, the notation is then expanded --,:nall.v. It is all very clear and workmanlike, like the numberplate of a car. 227

ACCI]SS

H HM-HX HV

Social sciences Sociology Social path0l0gy. Social and public welJare. Criminology HV Criminology HV 62544773 Special crimes HV 6435-64S2 O{lenses against the public order HV 6435-6453 lllegal organizations HV 6441-6453 0utlaws. Brigands. Feuds

6001-9920

Vendsttas ars nol specilically named, but their close relation feuds is lumped together in a c.:,containing both concrete and abstract topics, after the manner of LCSH's coniunctive phrase headin;: Contra$t LCC's hierarchy with BC2's (Figure 8.10). where Vendettas are correctly classed as a so:. phenomenon (not necessarily criminal) and mrnutely categorized by hierarchy. LCC will have none :' this soli $ociological nonsense: feuding's a crime, and that's the end 0f it!

(Some would se€ the heading and collocation at HV as m0re insidiously tendenti0us, with t!.. implication that anyone receivlng public welfare benefit is not far removed from being a criminal. Thas= are characteristic instances ol critical classification.l

Figure

8.7

LCC sample topic: Vendettas

The use of Cutter numbers adds to the complexity of the notation, horvr"," There is also an official manual giving guidance on shelf-listing. Classmarks assigned by the Library of Congress and appearing in USNI-Lrecords always include the fulI shelfmark, so that every LCC classmark c:with a Cutter number - or, in the many places where A-Z topical subdivisio:, prescribed, with two in succession. Many libraries perceive this as an advanti,as they can use Library of Congress shelfmarks as they stand, thus eliminarr:.one stage of book preparation. Some American libraries have migrated ir DDC to LCC because of this. ALPHABETICAL INDEX

For many years there was no official comprehensive alphabetical index, but or. the indexes to each volume. I-ibrary of Congress Subheading served as a rori!'and ready index, however, as many headings have relevant I-CC classmarlThe CD-ROM has a comDrehensive index.

ORGANIZATION AND REVISION

As the in-house classification of a huge legal deposit library, LCC assigns ne',, classmarks as the need arises. A list is published weekly in the Library's InJ6,mation Bulletin, and the CD-ROM is updated annually. Revision is thucontinuous, unlike DDC's. Radical revision of individual classes is very muci' the exception. The following official manuals are published: Subject Catalogitr:

228

BIBLIOGRAPHIC CL{SSIFICATION SCHEMES

: tal: Classification; Subject Cataloging Manual: Shelflisting; LC Cutter Table. '::zre available electronically on the Cataloger's Desktop CD-ROM, along ,'

rther publications on cataloguing topics. The CD-ROM is designed to be ':, ir.r conjunction with Classification Plus. , ..= scheme is primarily used by LC itself and by other extensive research :,'tions such as large academic libraries, mainly North American but also in .-.: English-speaking countries, including a signiflcant minority of British ',:rsity libraries. The resources behind the scheme, and the size of the --:.-tions that currently use LCC, are sufficient to ensure its stability ; .- :ghout the foreseeable future. United Kingdom MARC records currently - rle LCC classmarks, though with some gaps in the case of retrospective 'l.i\RC records. They do not however include shelfmarks (i.e. Cutter : -:.rers) for individual items. ,-.

-

ti::d

togethsr

in a cie;:

phrase headifi;: t:::ry classed as a soc 1 :-CC will have none :'

k-:ctive

&,

t ::ndsntious, with tj.:' F r?ing a criminal. Th:s:

:THER GENERAL CLASSIFICATIONS

l-:

notation, horr'.'.

-

-

-:s.iirg.

r!:taring in USIL:j r -uC classmark r f . pical subdivisi ,: ,:ris as an advan:.: :-.:d. thus elimina,- . s ..ave migrated i: *:

r-'-::ical index, but

:- I

served as a r( -. ','.:-.t LCC classma:. -

. LCC assigns r.,, :he Library's 1;:- "

Revision is i: .ses is very nr'.. . Subject

Catalr,.

-

-

.II

VERSAL DECIMAL CLASSIFICATION

',:rs?l Decimal Classification emerged from an attempt in 1894 by two : .-ans, Paul Otlet and Henri laFontaine, to commence the compilation of a - '.:rsa1 index to recorded knowledge'. A classified rather than an alphabetical ,ach was necessary in the index because of the many languages involved, -- ,: -" recause an internationally acceptable notation was important. The Dewey : ..:rai Classification was already in its fifth edition, and Melvil Dewey's per:' -.:,rn was obtained to extend the scheme. A conference in 1895 established ,-- -rstitut International de la Bibliographie (IIB) to be responsible for the :' :r'.,. 'fhe first edition of UDC was published in French between 1904 and 1907. - : First World War and the unfavourable climate after it led to the demise ..-.. index. but UDC continued with a second edition in French and a third in .--:r an. The IIB eventually became the F-ederation International d'Information . I)ocumentation (FID). The British Standards Institution, the official English . ' :ial body, published an abridged English edition in 1961. Publication of a ,nglish edition had begun in 1943 but was not completed until 1980. Since - all rights and responsibilities for UDC have been vested in the UDC r rtium, representing various international and national organizations. There ' :rists a machine-readable Master Reference File containing some 60 000 ..::s (compared with 220 000 classes in the full editions), from which the ' :.:rational Medium Edition, English Text, second edition was published in There are also editions in various combinations of Full. Medium ancl - '- rgecl in around 20 other languages - French, German and English are 229

ACCESS

Topic

DDC

UDC

Psychology

16n

159.9

u0cr0r0gy

301*307

oto

Comrnerce, cgmmunieati€ns,

380-388

Vacated. UDC classes Commerce at 339 Cornmunicati0ns 338.47, Transport and post? services 656

transport

Languages

400

Within class B. Class 4 is vacant.

Literatures of individual languages

820*890

Does not use: classes are formed by synthes,:

wtlnln ctass u.

Figure

8.8

Principal dillerences belween DDC and UDC schedules

UDC's official languages. A revised edition of the official Guide to the UDC was oublished

in

Us,

1995.

Schedules

The overall outline of the schedules follows DDC. with the main differenc.shown in Figure 8.8. It will be apparent from this that UDC's attitude towards disciplines is mr,,:relaxed than DDC's. The schedules and notation are largely hierarchical, thoug hierarchies are less clearly indicated than in DDC. There is no indentation. Bc, type is used, but is applied mechanically to notations of six digits or fewer, tf.shorter the number the larger the ffpeface. In the Medium edition many class.' have headings describing aggregates of topics, e.g.,675.25 Mechanically treatr leathers. Including: Embossed leather. Buff. Perforated, punched leather. ThFull edition provides subclasses for each of these. The schedules include son:. pre-coordinated classes, for example:

341,.345 Internment of military personnel in neutral countries 551.588.5 Influence of ice on climate 664.77 Milling of wheat and rye 664.782 Processing of rice. Rice milling 664.784 Processing of maize. Maize milling (corn milling) 664.785 Processing of oats. Oat milling Mlhile many enumerated compounds do occur, the principal means of pre-coordination is by synthesis. Within the schedules, 'special auxiliary subdivisions'are frequently to be found. These often indicate a Processes or Operations facet. and are introduced by.0 (less frequently by a hyphen or an apostrophe). Ther apply only to their class. For example, under 636 Animal husbandry, 636.082 is

230

ii-.

I

BIRLI ()(

n

, :sses Commerce

.:-;ices 656

, :3er-ltxrng

at : 13.47, Transport anc

a:,

3. Class 4 is vacant

.:s

(t0 remove ambiguities frzn certain conbinatizns\ 77.044..355 War photography (for use in machine retrieval systetns' where retrieval of the subordinate cancept is nlt required)

B.

_anguages

iarm

:

,DC schedules

rr ace

:tnnic grouplng

',aI Guide

and

61=161.1 Medical documents in Bussian 61{031) A medical encyclopaedia: also common subjects 7(091 ) HistorY ot art 7(450.341) Venetian art 7(=72) Austraiian atlorigine aft

nationality

to th,

:rme

61'16' Seventeenth-century medicine

rg are dependent c0mm0n subdivisions and troint of view 1,4

-

disciplines

i.

'' hierarchical.

r:

1s

. ito indentatiol. ..r digits or ft,rl'r-Lrnchecl leathr:.

tclules incluck

,

-

)untries

y be used as su{fires:

7.000,28 The Christian outlook 0n art 645.13-037.87 Linoleum floor covertngs 7-053.2 Children's art

Figure

8.9

UDC Common auxiliary lables

auxiliary lirr thg bree.clilg 9f animals. 63(j.1 denotes Horses, aud Prrnies, which would give (i3(i.1.082 and 63(j.16.082 for thc breeding of - anii l)onies respcctively. In a few lllaces an equivalent of I)DC's 'Add' .irins is to be founcl, indicatecl bv =, for exanlple:'178'18 Sltrdent life' -< ('tc l)art 01= 71.,3 - classiliers havt't0 wrlrk otlt for lhernselr'cs u'hich (l'-igLrre ::tlter to bring across. thcrt' are also tetl Ctltlulotr auxiliary tablcs ..ia1

rerluirecl bt' repeaterl or conbined with one 'l'he cglort is the getrcritl . :.. so a hig| cfttgree of synthesis is possible. -- relationai indicator: when LIDC was uscd to corllpile sulliect ittdexes, ntirchine retrieval ltecatne the noru, it n'as colnt'tlon to llncl hugel-V lengthl'

- of the auxiliaries

,rn.q)

lreans of pre-c iv subdivisionr Operations . , a1;ostrophe).

can 0n

sk - is used in a few places t0 introduce notation imported irom a non-UDC source. For :30 F0restrv uses notations from the Foresl Decimal Classification' giving e,g. 630-114 Forest

'.. eclition manl-e - \Iechanically t:.-

-

aterials

Derso ns

the main cliltt ,r

I.-5

purety linking devices. The oiher auxiliaries have thejr own classes, and c0uld in certain be used as the PrimarY lacet:

are formed

::,n class

HI.,\I

17:7 Ethtcs rn relatron to art 31:1622+6691(485) Statistics of mining and metallurgy in Sweden

: rple relatron ) i cgroup

SC

622+669 Mining and metallurgy 643/645 The h0me aqd household e0uipment (the same as 643+644+6457

, -,rrdinalion , : rsecutive :xlensio

;IIAI'HIT' CI,ASSIF'ICA'I'I 0 N

'--

sbanrlry, 6:-i6.( '

can

if

ils containiug four or l]lorc thcets strung together witlt colons. rr-rt,ly amoug general classifications. LIDC a116r'vs the individlal user a iegret, oI autolonty itt st'lectitlg the citation ordcr. Stalldarcl citation order ..'ially rcconrmen(led, howevcr, ancl in many places it is built irlto the' r1t,s

'fhere is an obvittus need lirr lhc' indithrough the special auxiliarics. 231

ACCESS

vidual user to follow a consistent citation order, and the maintenance authoriqr file is particularly important. UDC contains a number of devices to enable a user to modifu standard cit:, order. Notation may be reversed round the colon, e.g., 17:7 (Ethics of Ar1 : be expressed as 7:17 making Art rather than Ethics the primary facet, ,--auxiliary that has both an opening and a closing notation can be moved to , ' positions, e.g., instead of 343(410.5) Criminal law - Scotland, a user may pr34(410.1-t3 law - Scotland - Criminal, to keep all Scottish law together. UDC's filing order is complicated by the range of non-alphanumeric charac:.' in the notation, and by the possibility of many auxiliaries being used inde:-,dently, so that a class number could conceivably begin with a bracket, eq'-.. sign or double-quote. That aside, the coordination and extension symbo,. and / widen the scope of a class, so they file before the simple class num:-'

Thereafter, the filing order is (broadly): (colon), then = (equals), then (. (bracketed auxiliaries), then '...' (double quotes). This is not an exhaus:: listing: the Guide has a mind-boggling table with over 20 entries, including .' sequence .00 -0 -1l-9 .0 which is equally incomprehensible to machine a. human filing. Notation

Though based on DDC, UDC's notation is far more complex, thanks to its n' alphanumeric auxiliaries. Thanks also to these, the finer aspects of showing r; order of classes are not always apparent. There are other differences from DI)t Main classes and their divisions are not filled out with zeros to a three-dig minimum: TechnoloEry and Agriculture are 6 and 63 respectively. Srhere fin:. zero is used, it is significant: 630 denotes Forestry; (41) is the auxiliary for tl,. British Isles, (410) fc.r Great Britain as a poiitical entity. A point is inserted afrr. every third digit of the notation, as 629.454.22 Railway sleeping cars. The notation is completely hospitable through the use of decimal expansicrr: As UDC has been largely developed for use in scientific ancl technical contexrthe allocation of the notation is even more skewed than DDC's, and classe,s ' and 6 comprise almost two thirds of the schedules. F'or more specific subjecrs the notation can be extremely long. Alphabetical index

the

single-volume Abridged and two-volume Mediurn editions have their ow1 complete indexes. As with DDC, classifiers are recommended to work prirlarill' from the scheduies, and to use the index as a check on the validitv of a selectecl

232

BII]LIOGRAPHIC CI-ASSIFICAIION SCHE\,{ES

n:l the maintenancr

,uiLLt.

:

rrrodify standard ,' -: . . i7:7 (Ethics of -,

Ar. ; cs the primary face.

: r

--:,

t,

can be moved :land, a user ma\-:;sh law together. r.r

,-.:i

::-

:r"

-:-alphanumeric char:_ -being used inc-.-:

r:-rs

:;: ri'ith a bracket...__" r l extension synr;

-

r - t entries, includin: .:: :tsible to machinr .:

Dma. zation and revision --

', . :evision structure

has in the past been notoriously slow The setting up : --DC Consortium, together with the machine-readable Master Reference ;- .:n be seen as measures to streamline the revision process. Much work "'-"-:s to be done in ironing out UDC's anomalies to make it entirely suitable

ri ,

.

.,chine searching. There are currently some interesting projects for

- ':ing UDC for computer retrieval, and prospects for the successful rejuvenliu - i the scheme do appear brighter than in the fairly recent past. :- : to the 1970s UDC was frequently to be found in large card indexes in

'r,:". .' libraries and sometimes in abstracting and indexing tools. Computer,,"'. - indexing systems have largely rendered obsolete UDC's detailed indexing ' - . - ,r] (which essentially is why development is now concentrating on the

- ,:m

rather than the Full editions). UDC remains very popular for shelJ

.--..-rcation, particularly in the libraries of continental Europe. It is also used :3nge various bibliographies and indexing services (for here the length of ,tation is less of a problem than on the spines of books), including Walford's :r ; , :. t0 Reference Material, the British National Film and Video Catalogue, and

-.rlex, thanks to its _ :ipects of showini - 'lin'erences fronr I ,-

tr -

-

: * zcros to a threc-..i -..rectively. \4rhere -- . n .-- point is inserted a._'.r :.:cping cars. ,l'decimal expans

-:J

many UDC numbers rirrrl"'' :rned by synthesis, and the index does not show synthesized numbers.

:^'

i :-r simple class nur.,*": -'-. = (equals), then --:. is not an exha-..--

:

llrr ,:r irr the locations of related classes. In particular,

.:rri technical contc ,...

ItDC's, and clas:.. ::.,

,re specific

sul;i

:: .::ions have their r,',',* . .-cl to work prinra: - . validity of a selec:. .

-

.;- .-.ational bibliographies of over 20 countries. The omission of UDC class -'.rcrs from MARC records of North American and UK orisin is a serious .i-

,-:ilOl-1.

}" SS BIBLIOGRAPHIC CLASSIFICATION *--:r'Evelyn Bliss (1870-1955) made

classification his life's study, and wrote :rajor theoretical works before his classification was published in stages :--,,'ien 1940 and 1953. Though published by the H. W. Wilson Company, his ' . had little impact in the USA, but had a small but enthusiastic following in : -.-.in and elsewhere, particularly in the specialist fields of education, social ' -.;.re and health. A Bliss Classification Association was formed in Britain to -.-,in and develop the classification, and the decision was made to undertake - -,jor revision on analy'tico-synthetic principles, using and developing the work .c Classification Research Group towards the elusive goal of a completely new : .:ral classification scheme. Bliss's original classilication had many synthetic -:.-rf€S, but was essentially enumerative in structure, and chiefly notable for -: i?re taken over the order of classes. The revision (BC2) was to retain much ltis macrostructure, but otherwise is effectively a new classification. It is this

-o

233

ACCESS

Society KCY

KIB KIC

Social processes Social action (Types 0f action by consequences for society) Divisive processes Conflict {Types o,f conflict) (By instruments used)

KI] X KIJ

KIJ V KIJ X

,:

Force Violence Feuds and vendettas Vendettas

Figure

8.lO

BC2's hierarchy f0r Vendetlas

version that is discussed here. The schedules are being published class by Publication began in 1977, and is still not quite complete.

cla.-

-

Schedules

As BC2 is entirely faceted, only simple concepts appear in the schedules. T: schedules are rigorously hierarchical (Figure 8.10). While the notation is not hierarchical, hierarchies are clearly indicated : indentation ancl by summaries at the head of every column. Subfacets are shov.

within parentheses. BC2's basic citation order is Disciplines - Phenomena. Phenomena that ar. treatecl in a non-disciplinary manner are given a numbered notation, to makthem flie before the disciplines. The main classes are little changed from Bt and continue to embody Bliss's principles of following the 'educational ar. scientific consensus', placing general before special, 'gradation in spc'cialin and the collocation of related subjects. Figure 8.11 shows the main classes, w-it: approximate DDC equivalents. The schedules are relentiessly faceted, and all facets and subfacets are cari fully indicated. 'l'he complexify of the facet structures of many classes can gir',, the schedules a daunting appearance, and a clear head is needed whe; approaching them from colcl. For example, the facet tormula for class I.. Society is:

(1) Collectivities (KLK/KD (2) Parts and properties (KLK K\\D (3) Institutions (KK/KLC) (4) Social processes (KC/KI) (5) Ilnvironmental bases (KA/KII)

234

I

IJII]i-IOGIIAPI

I

IC CIASSIIICA']'ION SCH I'\II,S

)rrvalents are approximate.) physical forms and forms of arrangement o'documenls {DDC 030.050 etc) Phenomena: obiects of knowledgg (no DDC equivalent) Knowledge. rn{ormation, communication 1001) Drsciplines: forms of krowledge Philosophy t1 00) Mathematics (510) Science t500) Physical sciences i530) Chemrstry (540) Astronomy r52dr. Earth sciences {550-560, Biological sciences i570-590r Human scjences and human studies, Physical anthropotogy, health. medicine, psychology (5S9.9, 360,610, 150) Social sciences and numanities Education (370) Social sciences (300. 390) History {900) Religion i200), the Occult (130), Morals and ethics {170} Social welfare 1360) Politlcal science (320, 350) Law (340i Economics (330. 380r Technology (600: als0 355-359. 790) Arts, {ine arts i700t Philology: language and literature (400.800) (Alternative to P)

recl class br

.-t

schedules.

:arly indicatei. ..

rfacets are sh Figure 8.1

.I]o1lena thal :'Lotation, tc-r r:

'cducational

classes can

BC2

-

r,rn in specia. :rain classes. ',

.

0rder of main classes in

'r Operations on phenomena (KA/KB) i Common facets (K2lK9)

langed fronr

-..btacets are

1

c. ..

.s needed v, .-ula for cla:.

in a 'soft' science like sociology, many of the elements of standarcl citation the order of the schedules is Lhe reuerse of the

.

r' are discernible. As alwa1.s,

order. --ure 8.12 below gives an example of BC2's subfacets. F-or an example of ,.ets within a single classmark, see the breakdown of class KIX J Venclettas ,1r

:rire

8.10.

ation

- s notation uses both numbers ancl letters (capitals only; BC used both rls and smalls). As has been seen, numbers and letters are used together : listing of main classes. Otherwise, numbers are used only as facet indi:.. for the common subclivisions:

235

ACCESS

Su bg rou ps

By time factors By space factors By number in group

Re{lecting particular s0cial pr0cesses Territorial groups Stratification (class etc.) gr0ups Age groups Sex-g ro ups

By personality attributes / disadvantaged gr0ups 0ccupational groups By polttical status Religious groups Linguistic grcups Ethnic and racial groups Advantaged

The above are given in schedule order (leasf impodant first). Unlike DDC'S treatment 0f the sa-_subject^(see Figure B 3). BC2 is able lo c0mbine subfacets. The lollowing example uses the same ::(Black R0man Catholic miodle-class male youths) as in Figure 8.3:

:

KNB KNR KNX KPB R

Youths

KPF

Blacks (from Tabte 3A)

BF

Middle classes Males Catholics

Class number synthesized retr0actively, omitting noiati0n that duplicates the previous subfacet: KPF BF+ KPB R + KNX + KNR + KNB.

This gives: KPF BF BR NX R B, expressed as KpF BFB RNX RB.

Figure 8,1

2 il '1/9

2

Principal subfacels lor social groups (KLM_KV) in

BC2

Physical fornr Forms of presentation and arrangellent Common subject subclivisions

'l-hese are the onl1, facet inclicators; the stanclarcl rnethocl of builcling classma:.

is by retroactive notation. 'lhe nntation is remarkably brief, ancl can

pacf. .qooclly number of faccts into a small compass. I3revity is assured by means ,

o o

a long notational bast'

sensible allocation of notation 1o the classes (with the reservation that to RC too uruch space is allocaterl to Histgr-v ancl n
Of def-erence

o o

absence of tacet inclicators.

lJo

BIIliiO(;RAPHIC CI-A.SSIFICA floN- SCHEMF-S

- ::sier use, the notation is split into groups of three characters. An (extreme)

-,.rle of BC's synthesis in action is given in Figure 8.12. :: : anyone used to DDC, BC2 has some oddly notated hierarchies. Being

'-..,crarchical, the notation is required only to show the order of topics. The '- .*r of the notation reflects the estimated literature on a topic, and not the '--:e of subordination. Thus, in the above examples, AY Science appears to - - rut is clearly not - a subdivision of A Philosophy, and its first subdivision - : ?hvsical sciences - has a shorter notation.

&:'abetical index --- ,,'ith UDC, BC2's indexes show simple concepts only. Each volume of the

f,'- . ireatment of the s:-. lu,.-olt

uses the same

:::

:

. - .lules has its own index: there is no general index. It is thus up to : - -'lassifier to decide on an item's main class before it is possible to have --

, -rrse to the index. Every volume contains

two outline schedules of the whole

...lfication; the second outline has around 100 classes: much the same level ,-tail as in DDC's second outline. ln':anization and revision

: :

n-i't i\/) in

Bc2

r rLrilcling classn. r - - -i. and can pa-. - --Lrrecl by mear:. '-' .r.Sel'vation tha. : -' :-r'and not en.

BC and BC2 have been dogged throughout their lives by a chronic lack i:Sourc€S. BC2 was conceived at a time when there was an enthusiastic '"r'ing, at least in Britain, for the idea of a highly specific general classification -.. rvould form the basis for all forms of information retrieval. A generation -':: the world has moved on, and BC2 is still only half-published. Its intrinsic - -.-ities may make it the benchmark by which other classifications may be - ,:ed, but quality is not in itsel{ enough to attract users and ensure its future. -.:cles being ill resourced, the physical production of many of the schedules - .ser-unfriendly, ancl considerable intellectual effort is required to become .rt in using the schedules. Most importantly today, BC2 classmarks do not :. r:?r on centrally produced MARC records. - aradoxically for a classification calling itself Bibliographical, it may be that . s future is to be usecl predominantly not as a library classffication but as a

-

.:-r'rJ/

for others to mine. More than any other general classification, BC2

.:r.nbles the systematic display of a thesaurus. Its specificity is such that the --_:3t lnajority of its headings can be used as they stand as thesaurus clescriptors, - . reorganizing the semantic relationships for a thesaurus is largely a mechan,. exercise (but by no means altogether so - see Figure 8.13). +s well as being a potent source for thesaurus compilers, BCz with its :nense detail and regular and explicit structure would lend itseH to machine .,:tiltulation bette'r than UDC, and thcre have been suggestions that the clevelop-

237

ACCL-SS

Class KIJ X Vendettas $hows how easily BC2 adapts as a thesaurus, and also how sorne pro{ess input is needed. 0nly the immediate hierarchy is shown here. Classificatian

KIJ KIJ

Violence

K

Applica'ii0n of injurious physical force . For War, see Political science R Intimidation [further classes follow]

KIJ V KIJ

-

W

Feuds & Vendettas

.

Lasting mutual homicidal relationship between two groups Feuds

-

Socially regulated, terminable peacefully

Vendettas

'

Not socially regulated

Thesaurus Feuds SN

Lasting mutual homicidal relatiOnship between two groups. sOcially regulatec terminable peacefully

BT

Violence

RT

Ve

ndettas

Vendellas $N

Lasting mutual homicidal relationship between two groups, not socially regu:

BT

Violence

RT

Feuds

Violence BT

Application of injurious physical force Conf lict

NT

FCUO S

SN

I

ntim idation

Ve

ndettas

Ietc.] War

Figure 8.'13

Adapting BC2 as a thesaurus

ment of Lll)C could borrow some leaves fronr llC2's book. (There is alreiL collaboration with UDC.) N{ure generally, the stucly of classif ication sch. recognized lo be an excellent starting-point for atryone who ncecls to lt. a subject is structurecl, and tl-ie detail and rigorous analysis of BC2's s. make it especially useful in this respect.

COLON CLASSIFICATION

The CC dcvisrcl by S. R. Ilanganathan is little used outsicle the Indian s nent and in tire Western worl(l is chiefly of historical interest ior its der-t of facet analysis. F-irst published in 1933, subsequent eclitions have int:

238

BIBLI(

)(

;IIAPHIC

CI

ASSI!'l

CAllOi\ St HhNIi:S

:'astic changes. The current edition is the seventh (1987, and still lacking

how som€ profess : -

:\). r facet formula is simple, sturdy and hauntingly rnemorable: PMEST, i.e. ..rliry Mafter, linergy, Space and 'fime. Personality is (broadly) Key .. \'{atter is Materials; Energy is Processes and Operations; and Space and ::.c two of the common facets. Mapping the'se onto standard citation order

', systen

".r

Personality

.,.,r-Ll

,- .1.-

...icriais . perties .

.CSSCS

Matter Energ_v

.rations

-.-,--nts

-

rnnron facets

Space

Time

. is clearly an incomplete formula, Ranganathan postulated two furthcr ... His fr"rndamental categories caa apply at different Leuels.'lJrese are

.tre is alr-eacl1'

' -

.cation scheclLi .tcecls to

learl

,i IJC2's sche,

, :. broadly) rvhat we would call subfacets, but can be used to specily basic . such as Kinds, I)arts and Properties. 'lhe other device is Ronttds wht:re , I.lll fornula can begin a second round at some subordinate position in the n order - typically to introduce Agents. Iivery class has its own facet :ia. based on PN{ES I with di{ferent lrvels anci Rounds as recluired. 'lhis -,cnlt enough, ancl is not made easier by Ranganathan's adherence to his ' Porsimony - trained as a mathematician, he believed in giving information :r.tl]/, to the point of de-siccation. Neither is it made easier by CC's notation, r is of a desprrate cornplexity. It uses a range of non-alphanutneric charac.,i iacet indicators in a manner cornparable to UI)C. l{owever, whereas UDC ".i'ise confines itscH to nurnbers, CC also has upper and lower case letters, . il as using a ft'w le.tters as iror.rorary nurnbers to extend the notaticinal -.

i1e Ranganathan is rrncloubtedly the lather oI moclern classification theory. ne of the fathers of the theory of controlled laugrrages generally, iris C.C - n' user* in \\restern contexts. Hon'ever, PNIFIs-I'renrains a very worthwhilc'

::,rnic in a rangc of lrrofessiclnal applicatirlns. rc Inclian sube rr its develop;. s have introcli.

IJV

ACCI.]SS

-

MODIFYING PUBLISHED CLASSIFICATION SCHEMES

,.1 develol .-.ected to

A published classification scheme is a complex package, and whatever scl ' is in use for a particular application, there is a good chance that its mani:will feel dissatisfied with some aspects, and contemplate modilying it. Rea.'

:rle quart(

,i their

Providing extra specificity for applying a general classification to a sp. collection.

o o

o

Giving a special collection a shorter base notation. Altering the citation order, to bring together distributed relatives (e.g DDC in an academic library, to bring together all aspects of Geographr to arrange literary works by Language - Period - Author instead of DI preferred Ianguage - Form - Period - Author). 1b simplifu the classification.

:9ECIAL

o

.i $ellefi

.

-

r

Making use of one or more of the scheme's own published alternatives. : example, DDC has an option that permits literary works to be classillei: -B under each language irrespective of literary form. Buying in or developing an unauthorized modiflcation.

fo1lou'i

bibliog bases:

r

slielf

.

o r o o

Many libraries use centrally produced bibliographic records that inclu DDC and/or I-CC class numbers. Resources must be allocated to ident. records whose class numbers require modifying, as well as to apply the ltii modiiication. In the past, many modifications, certainly in British libraries, were nra with the objective of providing extra detail to support subject indexing. 'fh . function is today done more effectively by other means. If there is pressure from users to modify parts of the scheme, for examp.. the better to reflect patterns of acaclemic study, can the objective be met b' other means, for example by guiding or user education? Are the publishers of the scheme preparing an official revision? I.ocal altrrations to individual classes can be overtaken by a future edition of th. classification. Have idcntical or sirniiar problems been encounterecl elsewhere? If so, hor'. have they been addressecl?

Some of these implications are rnanagerial, others technical. Morlifications tr classification schemes were urore comuroniv unclertaken a generation or mortr

240

a

attcl re the vo 'ItrC?1

:

llr.lrp()

r

In either case, the implications must be carefully considered:

r

I

'--OlTlpas:

Modifications are of two kinds:

o

P

-,rre tamtr

may include:

o

.whenp

.hclf I

'--\(tll

linirll I

:lcsa Lr ricl!

- I '1>: t,

a

i1:

r',..

Ill BI-l(X;l{APH IC CI.ASSIITICAII( ) N

ilqES

ri: _

u.' -

.:td whatever sci. ::rce that its mzn;-: :todifuing it. Rt-a-

SC

HIr} IhS

.i0, when published schemes and central bibliographic agencies were both less 'e11 developed than today, and when classification (at least in Britain) was :\pected to do more than arrange books on shelves and was propagated in : )me quarters almost as a panacea. Today, managers should satisfy themselves .:rat their problem is real, unique, and incapable of resolution by other means :elbre tampering with published schemes.

.rilication to a sl _ SPECIAL CLASSIFICATION SCHEMES

i:- - cd relatives (r.. :- :itS of Geograph-. - ',ur instead of D-

ru

-

.:red alternatives. -ii to be classifi.

-he general classiflcation schemes that have been considered so far attempt to all of knowledge. Speciai classiflcation schemes are to be found in ie following environments:

::.rcorlp?SS

r

bibliographies, indexing and abstracting services and their associated data-

o

bases: for example INSPEC, Psyclnfo shelf arrangements of special collections. These may be business, industrial

. .

l* mr-

r

il- :.'l:

i r -

:-cords that int...,ilocated to idcrs ro apply the

r

: :ttraries. were n. j . - 1rier'I indexing. I t:--'

;

-

-.'heme, for exan_. ,bjective be mt

'

r'ision? Local a.. Lrrt. edifion ol' :

srrvhere?

'

If

o

scl. i.

,,1. Modilication: , :eneratiOn or rn :.

o

and research libraries, specialist government libraries, organizations within the voluntary sector, or special collections within general libraries, especially local studies collections in public libraries. Special classifications for these purposes were often devised with indexing as an additional objective shelf arrangement of a particular class within a general classification: for example, Elizabeth Moys's (1982) C/assiJication Scheme for Law Books, originally to stand in for LCC's then unpublished class K law thesaurofacets: a thesaurus having its systematic display developed with notation and rules for pre-coordination, enabling it to be used as a shelJ classification as well as for post-coordinate retrieval. The eponymous original was the English Electric Thesaurofacel of 1969 records management systems where files are stored in a topic-related order.

,,. general, schemes aim to cover just one subject area, or to meet the interests : one user group. More specifically, their types include:

I . o o o

schemes restricted to a conventional subject area or discipline: for example, rnusic, insurance, chemistry schemes devised for other associations of topics: for example, local collections, industrial libraries, archives schemes for a certain Vpe of user: for example, children, general browsers schemes for documents in a particular physical form: for example, pictures, sound recordings; or restricted to a certain form of publication: for example, patents, trade catalclgues schemes for ciassifying the subject content of works of the imagination: for a A1

z+l

ACCF]SS

example, fiction, paintings. Conventional classification schemes classif,'t;.

only by non-subject characteristics.

The rationale for applying a special classification scheme is essentially the sa.: writ large, as that for modi{ying a published classification, and the same car'.. apply. The heyday of special classification schemes was in the 1960s and 1twhen (as noted above) general classifications and central bibliographic agenwere relatively undeveloped, and classification was often expected to suppor . indexing function. Additionally, the great expansion of libraries at that r:: coincided with the flowering of post-war classification theory. For anyone ser:. . up a special collection, a special classification tailored to its needs seemed .

natural choice. Special classiflcations were made and published in great numb:'.

and their compilation by library school students was an exercise that was 1.to be both professionally relevant and academically rigorous, like learning k Since the 1970s many such schemes have fallen by the wayside. Today libr. or database managers would be well advised to contemplate using un "1isr special classification only when satisfied tirat none of the major general clas.. cations is viable, and to construct a special classification as an absolute..,resort. The focus of activity has moved: in many cases it will be found tha-

thesaurus, iocally maintained as an authority file, a published thesaurus, will be all that is required for speciflc subject retrie,,

.

and perhaps based

,

and a published classiflcation scheme will suffice for shelf arrangement.

SUMMARY

The three major general classification schemes have all been in existence r : upwards of 90 years. A11 have enjoyed some measure of official backing government agencies, and this is undoubtedly of prime importance to thc. continuing success. 'I'he move over the past generation towards centrally pr ,

duced records with classrnarks centrally applied has led to a lower emphas today on modi{ying published schemes. This, together with the virtual demi.-

of the indexing function of classification, has reduced the need for

speci:,

classilication schentes.

REFERENCES AND FURTHER READING l'-oresl l)ress publish a range of materials for I)l)C, including a Dewey Aurliocassette, Postr: Ilool
242

I',

.--r

,:-' 1960s and .

197r

.

'-t:cted to support a, --:-aries at that tin.: -- : itr anyone settin-:

..:

:teeds seemed

tli.

.

.ke learning Iatin

:. -.ile. Today librarr

;.: -tsing an existing :-: :' general classifir :r ?lt absolute las: - be found that a r:haps based on -

" :: . subject retrieval. -

.,:119€lTl€nt.

;

RA I'H

I

('

CI

ASS

IFI('A]'I

O

)'l

SC I l tjN,{ I,lS

2l

j. P, N{itchell,.l. S. and Satija, N{. A. (1990 I)ewey l)ccinal Classi/itation: 1 Practicnl Guide,'2nr1 edn, revised for I)I)C21. Alban-v. \Y: ['-ore,st l)ress. 'ates. Il..T. (19&)) Rritish Catalogtte rtf NIusic Classilirution.lrrr.tdon: I3ritish National 13iblio.qraph--v )miu-omi. J. P (1990) Sumnration of classilication as an enhancement of irrtelk'ctual access tc)

-nan, L. M., Conrarorni,

-

irrfrrrnratiorr in an online envirorunertt. ('atalrgittg nrttl Classificntion ()uarterly. If (1). 99-102. Decimul Classification and Relatire Index (7ll\16) 21st edition. ,1 r.'ols. Alban','. NY: Irorest Prrss. (The Introduction in Vol. 1 explains DI)C's basic princilrles aucl structurt'l and the Nlanual in Vol.

t, u'ej

-1 ofters detailerl advice on practical problenrs ol inrlrlenrent;(ion.) -)rabenstott. Ii. \'I. (198!i) Searching and brorvsing the De*'e1'Decinral Classification in an online calalog. Cataloging and ClassiJitation Quarterly, 7, :',7-68. i:oskett, A. C. (1990 The Subjcct Appronclt to Information,5th edn. Lonclon: I-ibrar1, Association. \larcella, R. ancl Newton. lt. (199"1) A Neu'LIanunl rf Classi/irution. Aldershot: Gower. \liksir, Ii M. (1998) 'l'he I)DC, tht Uniterse of Knouledge nttd the Post-Modem llbrary. New York: Forest Press. \lills, J. arrd I3roughton. \'. (1977) Rliss Bibliograpltic Clossificutiori, 2ncl ecln, vol. titled Introduttion on

d A ux i I i a r y

S ch

e

d u I e s.

Lonck.rn:

Ilutteru'or ths.

ktw Boolts,2nd ecln. I-ondon: Butterworths. Satija, NI. P (1990) r\ critical introcluction to the 7th edition (l!)87) of the Cokrn Classification. Cotaloging anrl Classihcotion Quarttrly. 12 (2). 125-311. :weeney, R. (1983) Histurical studies in ilocumentation: the clevelopntent of thc Dewe1, Decirnal Classification. Journal of Doutmetttatiori. 39 (l:i). 192-205. 'l'lrorlas, A. It. (cd.) (1!)!)5) C/a.s.slfcation: Optiotts and Oppttrtunilrps. New \irrk: Harvorth. (A1so published as Cataloging and Clossi/icotion ()uarterly. l9 (3/1)). \loys, E. (1982)

i: ' ]l existence frtr : ..'ial backing bv - r'tance to their , .i centrally pro: )\\-er emphaSis - . r'irtual demise :rd for special

O (

.'hison. J. (1980 A classification as a sorlrce for a thesaunrs: the Biblirigraphic Classification ri{ ll. t'1. Illiss as:,1 soLlrc('o1 thesaurus ternrs and struclure. Journctl of Dotuntentation.42 (l'r). i{i0-81. tn-. C. I). (19!)2) ,41 Introduction trt tlte Tutentieth Edition ol the DeLt'ey Decinal Classihcation. London: Librarv Associirtiort. :an, [-. M. (19!)0) 'l'he l-ibrary of Congress classification syslem in an onlinc envlronnlent. Cataloging and ClassiJitation Quarterly. ll (1), 7-25. ,an. L. \L (191)ir) Classificalion. present and future. Catctloging and Classi.fication Quarterly (2\. 5-17.

:rrgraphic agencit :

.-,. . in greatnumbers, ..::---ise that was helc

lll.l

Lrr-page conric-style I)ervey bool.

cmes classi{y the..

, .rsentially the san:. .:.rl the same cavea:l .'-

I

,/tfo1s

ClassiJitation Scheme.fur

'cassette, Poster-.

- lte that uses tht :t, rosc

the cartoon

, r \bur

Numbcr".

243