XMCDA is a structured XML proposal to represent objects and data issued from the field of MCDA. Its main objectives are to allow different MCDA algorithms to interact and to be easily callable from a common platform like diviz. We present this standardised XML structure and detail the underlying data types via examples speaking for themselves. During the discussion, the following issues will be addressed: Technical discussion of the XMCDA 2.0 proposal, Dissemination issues of the XMCDA releases, Forthcoming work on XMCDA, Setting up of the DECISION DECK Specification committee.