[From IBM developerWorks
Everyone involved in database application development follows some kind of methodology. The methodology you choose helps you to analyze your requirements and to develop and deliver the final product. A principal piece of your methodology will be designing or modeling your database, based upon your business requirements. In this article, we'll talk about designing and modeling specifically for DB2® Universal Database using Rational® XDE Developer for Java.
The Unified Modeling Language (UML) is the standard graphical notation for modeling business and software application needs. The use of the UML for object-oriented software development has become widespread in the past few years. In addition to using UML for object modeling, the strength of UML can be applied to modeling and designing the data stores which your application is going to use. Data modeling basically involves analyzing the client's requirements in order to develop a model of the client's data needs which can then be treated as the blueprint or the framework around which to build the database for the application.
This article will show you how easy it is to generate a model for a database, based on one that we are already familiar with, the DB2 Sample database. By the end of this article you will see how to model the DB2 Sample database and some of its objects. We will also show you how to generate the DDL scripts from the completed model and how you can use these scripts to create the final DB2 database.
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