The Model Driven Architecture (MDA) is an approach to IT systems development fostered by the Object Management Group (OMG). It is based on forming a separation between the specification of a systems essential functionality as a platform independent model (PIM) and the realisation of the system using more detailed and specific platform specification (PSM). The MDA approach to the development of distributed IT systems will affect the current methods and techniques employed to manage the development process. It is recognized that specifying the mappings from transformations from a PIM to a PSM is a key enabling aspect of the MDA approach. This is substantiated by OMG's current Request for Proposals (RFP) on techniques and facilities to enable transformations. In this workshop we aim to explore how the MDA approach affects or impacts on methodologies for system development, and intend to explore the techniques available for specifying transformations, in particular taking a look at tools (or potential tools) for supporting such specifications and methodologies. This workshop is following on from two previously successful workshops: Metamodelling for MDA held in York, November 2003, and First European Workshop on Model Driven Architecture with Emphasis on Industrial Application held in Enschede, March 2004.