Resumen
This article focuses on aspect-oriented programming (AOP) and model-integrated computing. An aspect-oriented approach can be beneficial at different stages of software life cycle and at various levels of abstraction. The authors have found this true in the area of domain-specific modeling. In domain-specific modeling, a design engineer describes a system by constructing a model using the terminology and concepts from a specific domain. Analysis can then be performed on the model, or the model can be synthesized into an implementation. We have proposed a solution that allows modular specifications of constraints to be propagated throughout a model via a domain-specific weaver. Domain-specific weavers rely on aspect specifications and strategies to carry out their duty. Aspect specifications, similar to pointcuts in AspectJ, are used to describe where the constraints will be applied in the model, and strategies describe how a constraint is applied in the context of a particular node in the model. An AOP-based approach to modeling and constraint utilization greatly enhances the maintainability, understandability and evolvability of domain-specific models.