Structured Activity Node: DSL Modeling

The activiy "Architecture Modeling" indicates the definition and integration of domain specific platform aspects. This can be done on the one hand with UML-Profile Development (StepAM1) or on the other hand with defining metamodels  for own modeling languages (StepAM2), what certainly is a bit more sophisticated.  
In this sample project there is a metamodel provided for defining relational databases (RDBML), yet we won't need it for our example. It is more or less for some demonstration reason. Alternitavely there is an UML-Profile prepared (MVC-Profile), that contains some aspects of a model-view-controller design pattern.