Starting from scratch..

When looking at the larger process of J2EE system development, application generation with JAG actually comes as the second phase: first you must in some way define the system that you intend to build!

The first phase is the design phase referred to in the diagram above. As far as JAG is concerned, the output from this design phase is either a database model, or an object model.

Application generation from a database model

The process of generating an application from a database model with JAG breaks down into the following six steps:
  1. Creating the application database
  2. Application configuration
  3. Creating entities
  4. Creating services
  5. Creating business methods
  6. Generating the application

Application generation from a UML model

Generating a J2EE application from a UML model (class diagram) is as simple as following these four steps:
  1. Create the UML class diagram
  2. Import the UML model into JAG
  3. Application configuration
  4. Generating the application

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