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Towards an aspect-oriented language module: aspects for petri nets

The concept of composing a (domain-specific) language from different reusable modules has gained much interest over the years. The addition of aspect-oriented features to a language is a suitable candidate of such a module. However, rather than directly attempting to design an aspect-oriented language module that is applicable to any base language, this paper focuses on adding aspect-oriented features to a language that is quite different from prevalent base languages (e.g. Java): Petri nets. A running example demonstrates the use of aspects to enforce an invariant on a base Petri net.