Hi Kedar and Binoy: AP Studio allows us to draw annotated UML class diagrams and you assign to those UML class diagrams a default implementation which is expressed in terms of class dictionaries. For example, a cardinality 0..* is represented by a repetition class. For the current AP Studio, please can you write down how you do the translation. This is an important part of the USER'S GUIDE for AP Studio. Do a first version asap. -- Karl