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Building Web Applications with UML by Jim Conallen

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Packages

One of first activities of the analysis team is to create the package hierarchy of the analysis model. As with any complex system, one natural way to attack the task of representing the problem and solution space in a comprehensible way is to "divide and conquer." The UML mechanism for this is the package. A package is nothing more than a "chunk" of the model: small enough that one can understand its purpose and significance in the model. Packages contain elements of the model; classes, diagrams, components, interfaces, and so on. Every element in the model is owned by exactly one package. This does not limit model elements from appearing in the diagrams of other packages or from participating in relationships of elements in other packages. ...

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