Method integration

1. "Life-cycle" based

• Horizontal consistency

  • between different methods on the same level of abstraction
  • e.g. instance of a class in a class diagram and an object in an object diagram

• Vertical consistency

  • semantically equivalent descriptions on different levels of abstraction
  • e.g. ER model and definition of a relational database schema transformation between phases

2. Data versus process based

• is integration based on the ISD process or the models?

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