UML/DSL por Johan Den Haan (a propósito de Steven Kelly)

Continuando la rueda de discusiones, Johan Den Haan se apoya en la nota que publicara hace pocos días Steven Kelly, a propósito de las afirmaciones originadas en Microsoft, revalorizando el lugar de UML, o reubicando a las herramientas DSL. Johan comparte en cierta medida las observaciones de Kelly, pero, como antes lo hiciera ya en otros artículos, da un paso más, proponiendo un modelo más amplio para solucionar el problema en discusión:

I definitely agree with Steven [...] that using UML and DSLs as presented by Cameron isn't a very good idea. I do however think, that the worlds of MDE (MDE is broader in scope than MDA, it adds multiple modeling dimensions and a software engineering process) and DSLs aren't opposites. I think that both DSLs and MDE are necessary assets for Model-Driven approaches. While multiple DSLs are needed to describe a software artifact (see for example the different architectural aspects of Service-Oriented Business Applications (SOBA) ), MDE is needed to provide a framework for connecting the different DSLs. An MDE methodology defines a framework of dimensions and their intersections, thereby defining the different models needed to describe a certain software application. This information also gives us the opportunity to discuss the needed DSL's in a (more or less) formal way. Last but not least, an MDE methodology also describes a software engineering process and a maintenance process, thereby defining the order in which models should be produced, how they are transformed into each other (if applicable) and how to change an existing software system using models.

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