Ppt - Power Designer

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DATA MODELING AND METADATA MODELING WITH SYBASE POWER DESIGNER

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DATA MODEL AND DATA MODELING •

A data model is an abstract model that describes how data is represented and used



Data modeling is the analysis of data objects



This is typically done to solve some business enterprise requirement such as analyzing and separating different process of the enterprise

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METADATA CREATION •

Metadata can be simply defined as a data about a data



This data is given importance as it involves in storing and managing data pertaining to the models created



It allows the most effective performance of data warehouse

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ABOUT SYBASE POWERDESIGNER •

Data and metadata modeling tool



Reverse engineering for RDBMS- this is done to develop a data model based on existing database



Multi Level Design- all in one design solution pertaining different modeling facility for an Enterprise model



Saves time while operating- Since Data and other components are graphically created and reverse engineered it takes very less time to generate output



Easy interactive software

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CAN POWERDESIGNER BE USED BY AN ENTIRE ENTERPRISE TECHINICAL TEAM? Almost by all in an Enterprise IT division. •

Business Analysts



Data analysts



Database Administrators



Developers



Team Leaders



Testers

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DESIGN CAPABILITIES OF POWERDESIGNER •

Requirement Model



Conceptual data Model



Business oriented data model



Physical data model



Object oriented data model



Information Liquid data model



XML model or a graphical model

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REQUIREMENT MODEL •

The type of model which we need to create according to enterprise requirements such as requirements from Marketing department, Production department…



It gives the combination of all other different models



A model made up of different languages such as Java, C#, Visual Basic.,

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CONCEPTUAL DATA MODEL •

Conceptual Data Model gives the formal representation of data in its raw form



With the help of Conceptual Data Model, a graphical representation of an ER-diagram can be created



It confirms the validity of the design



Using a Conceptual Data Model we can create a Physical Data Model and a Object oriented Model

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PHYSICAL DATA MODEL •

A Physical data model is used for designing and creating structured queries, ER-Diagram etc…



Plays an important role in creation of a Data Warehouse as it helps in designing structure of a Data Warehouse.

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BUSINESS PROCESS MODEL •

Business Process Modeling enables users to analyze and understand the needs and flow of their enterprise



We use Conceptual data model (CDM) or physical data model (PDM) to design relational data ,then importing these data into Business process model (BPM) which creates a situation for Enterprise modeling to be done



As every model has an option of changing their process languages, the whole model content is automatically generated according to the process language which we select. Thus it becomes an unique model which can be highlighted and used in a specific model

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OBJECT ORIENTED MODEL Object Oriented Model is used for •

Creating code for C++ ,Visual Basics..



Creating Physical, Conceptual and XML Model



Creating standard object indicated graphics; which is a graphical analysis of a scheme using signs and language notations of the Unified Modeling Language (UML, a standard object-oriented modeling)



Generate and reverse engineer Java, C# and PowerBuilder files

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INFORMATION LIQUIDITY MODEL •

Information Liquidity Model is a tool used for ETL(Extract transfer and load) and EII (Enterprise Information Integration)purpose



Information Liquidity Model helps in designing data transfer



Information Liquidity Model helps in mapping different models in the same page



Information Liquidity Model helps to create reports and print reports

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eXTENSIBLE MARKUP LANGUAGE MODEL •

eXtensible Markup Language (XML) Model is used to restrain application data



XML helps in storing data in Plain Text Format which helps in migrating data between inappropriate systems



XML is also used for creating & storing data in the following formats: • • •

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XSD (eXtensible schema definitions ), XDR (External Data representation) and DTD (Document type declaration).

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REPOSITORY WORK CYCLE

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BENEFITS OF POWERDESIGNER •

Metadata management •

Transformation of structural data



Greater agility in IT performance in an organization



Greater standard and compliance •



Impact analysis •



Gives an effective analysis in analyzing enterprise data by generating reports..

Do less by hand and save time, money and efficiency •



As an Enterprising software it sets up a high performance management environment

Minimal work done with very less time taken to create Models

Model driven management •

The entire process is done model wise, by using different models we can understand and align enterprise process

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ADVANTAGE OVER OTHER DATA MODELING TOOLS •

Reverse engineering Database •



Erwin conversion Database menu •



Provides easier ways to name tables and models

Easy Model management •



Provides an option of converting Erwin files

Easy naming convention •



Transforming data from other RDBMS into PowerDesigner Files

Models created are easily managed and saved

Language Support •

Languages such Java,C++,etc can be changed extensively using PowerDesigner by using specific Design models

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