Juha-Pekka Tolvanen (jpt@metacase.com) is the CEO of MetaCase. He has been involved in domain-specific approaches and tools, notably metamodeling and code generator development since 1991. Juha-Pekka holds a Ph.D. in computer science from the University of Jyväskylä, Finland and received best national dissertation award 1999. He has acted as a consultant world-wide for modeling language and code generation development. Juha-Pekka has authored a book (Domain-Specific Modeling, Wiley) and over 90 articles in software development magazines, journals and conferences. He is the primary contact for this workshop.