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UML 2.0 in Action by Philippe Baumann, Patrick Grassle, Henriette Baumann

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Chapter 4. Modeling IT Systems

Modeling is the foundation for successful development and implementation of new IT systems. A correct and complete model ensures that, in the end, users get the IT system they need.

Modeling IT Systems

Figure 4.1 Different views of a system

In this chapter, we show how a conceptual model of an IT system can be developed with the help of UML. Taking into consideration the 80:20 rule, we do not use all the features of UML. Practice shows that it is unrealistic to model everything in full depth with UML. This is because in the implementation stage new insights are gained, which cannot be foreseen during the conception stage. In addition to ...

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