The OCCIware project aims at building a comprehensive, coherent while modular model-driven toolchain for managing any kinds of cloud resources, especially Data Center as a Service, Deployment as a Service, Big Data as a Service, and Linked Open Data as a Service. Lever-aging the Open Cloud Computing Interface (OCCI) and its core model, the OCCIware toolchain applies a model-driven engineering approach based on a formal model of cloud resources and systems. This approach allows for better modularity, clear separation between functional (cloud resources) and non-functional concerns (security, scalability, reliability, etc.). The project brings together ten French partners-academics, SMEs, associations-and is supervised by a Strategic Orientation Committee of eleven top industrial and academic experts. The OCCIware project has been selected by French Ministry of Industry and funded by French Banque Publique d'Investissement (BPI).