This document presents the initial analysis and the specifications of the components of the VMUST platform, developed in the framework of Work Package 4. After previous discussions and studies made by the V-MUST partners (through House of Questions, technical meetings, output of other WPs) a first definition of the V-MUST Platform has been built. This initial design will be further specified and integrated later. The final specification and the implementation work plan will be outlined in the deliverable 4.2.