Advances in hardware, storage, devices, connectivity, and web technology are changing the way applications are designed, deployed, and managed. Applications are increasingly becoming data-centric and data is everywhere, and in all tiers (from the client to the cloud). Data across multiple tiers requires data access and management capabilities across these tiers. The Microsoft Data Platform presents a vision for an end-to-end data platform that offers data services across all tiers. Categories and Subject Descriptors: H.2 [Database Management], H.3 [Information Storage and Retrieval], H.4 [Information Systems Applications] General Terms: Design, Management