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  1. Stéphane Ducasse and Tudor Gîrba. Using Smalltalk as a Reflective Executable Meta-Language. In International Conference on Model Driven Engineering Languages and Systems (Models/UML 2006), LNCS 4199 p. 604—618, Springer-Verlag, Berlin, Germany, 2006. DOI PDF 

    Object-oriented meta-languages such as MOF or EMOF are often used to specify domain specific languages. However, these meta-languages lack the ability to describe behavior or operational semantics. Several approaches used a subset of Java mixed with OCL as executable meta-languages. In this paper, we report our experience of using Smalltalk as an executable and integrated meta-language. We validated this approach in incrementally building over the last decade, Moose, a meta-described reengineering environment. The reflective capabilities of Smalltalk support a uniform way of letting the base developer focus on his tasks while at the same time allowing him to meta-describe his domain model. The advantage of our this approach is that the developer uses the same tools and environment