Success of any new technology depends on compatibility with the existing environments. Aquarius.NET solves this problem in a radical way: it leaves all connected spatial and attribute data data in their legacy storages and formats. It connects to any database, file format or WEB service by its specific adapters. Thus various spatial and attribute data from disparate public and legacy corporate sources are integrated and normalized within Aquarius.NET framework through the use of schemes. This architecture allows rapid application development and very quick customer implementation.