Demeter Ideas in AOP

Demeter Ideas are used in the following domains:

• Using several cross-cutting building blocks to describe a system. Building blocks: Structure, Behavior, Navigation, Synchronization, etc.

• Specifying crosscuts. Aspect-Oriented Programming (AOP) is about tangling control. In other words, it is about controlling the crosscutting of several issues. A crosscut may be set of methods or objects or classes. A subgraph of a graph can often be used to express a crosscut. For example, a subgraph of a UML class diagram specifies a set objects to be marshalled or a set of traversal methods for collaborating group of classes. The following two papers series-parallel strategies journal paper and strategies paper show how to specify subgraphs and path sets succinctly. This leads to a more flexible way to specify crosscuts.

• Reusable aspects. The Demeter work has specified programs at the level of class-valued and relation-valued variables instead of directly with classes and relations. This higher level is also needed for AOP to decouple aspects.

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