Basis Overview

Installation of the R/3 System Minimum Requirements: Hardware: Pentium II 300 MHz and above H.D.D : 25 GB Memory : 512MB Software: Windows NT 4.0 and Service Pack 6.0

Client • A client is logically an independent unit in a R/3 System with its own set of Master and Transaction data. • In simple terms, a client is nothing but a work area where all your customizations and data are stored.

Default clients in R/3 • Client 000 - SAP Standard Client • Client 001 - SAP Reference Client • Client 066 - Earlywatch Client

IDES System • IDES : Internet Demonstration and Evaluation System. Default Client : 800 * In IDES system client 800 is a preconfigured client supplied by SAP.

System Landscape • • • •

One System Landscape Two System Landscape Three System Landscape Four System Landscape

One System Landscape • DEV, TST, QAS, PRD in a Single System. Advantages • Less Investment on resources Disadvantages • Cannot go in for enhancements after the system goes live. • Upgrade to a newer version not possible.

Two System Landscape • DEV and TST in One System • QAS and PRD in another System Advantages • Developments & transports can be tested before being moved to PRD.

Disadvantages • Client independent customization immediately become live after transport from DEV.

Three System Landscape • DEV and TST in One System • QAS in One System • PRD in One System * The Three System and The Four System landscape are SAP Standards. Large SAP installations follow this standard.

Which Customer Requirements are met by the R/3 System?  Comprehensive business functionality

Integrated solutions

Suited for large and small companies

FI

SD MM Open systems

CO

PP

QM PM

R/3

AM

Client / Server ABAP/4

PS WF

HR

IS

Client / Serverarchitecture

Multinational Integration of Desktop applications

The R/3 Integration model  SAP AG

Industryneutral

Which Customer Requirements are met by the R/3 System?  Comprehensive business functionality  Integrated business processes

Business Processes Order management Product development Customer service

 SAP AG

Service Accounting

Production

Marketing/ Sales

Functional Areas Research/ Devlopment

Design System

Personnel

Financial reporting

Which Customer Requirements are Satisfied by the R/3 System?  Comprehensive business functionality  Integrated business processes  Customer-specific configuration of R/3 applications (Configure to order)  Flexibility, scalability, and performance through multi-level client/server architecture

 SAP AG SAP50 Kapitel 1/ 1

DB Application Presentation

 Installation of additional servers if resource bottlenecks occur  Parallel servers with homogeneous loads and high proximity of program execution  Buffering of Data and programs close to the executing processors  Logon / Load balancing

System Platforms for the R/3 System Hardware

UNIX systems Bull IBM Digital SNI HP SUN

Operating AIX system Digital UNIX

SINIX SOLARIS

Data General Sequent AT&T SNI Bull/Zenith HP (Intel) Compaq IBM (Intel) Digital (Intel) ...

IBM AS/400

Windows NT

OS/400

HP-UX

Database

Dialog SAPGUI

Languages

 SAP AG

ADABAS D DB2 for AIX INFORMIX-OnLine ORACLE8.1

ADABAS D MS SQL Server 7.0 ORACLE8.1

Windows 3.1, Windows 95, Windows NT, OSF/Motif, Presentation Manager, Macintosh

ABAP/4, C, C+ +

DB2/400

Windows ‘95 OS/2

The SAP Dispatcher Presentation

SAPGUI

SAPGUI

SAPGUI

SAPGUI

Communication

Application Dispatcher

Work process

Database

Work process

Work process

Buffer

R/3 Instance (Central System) Message server

Instance

Instance profile (parameters)

SAP Gateway Dispatcher

D

...

V E

E

B

...

SAP buffer START or STOP

R/3 Administrator  SAP AG

S