TierDeveloper is an object-to-relational mapping and code generation tool that helps you rapidly design, generate, and deploy middle-tier data objects for N-Tier applications in .NET and Java/J2EE. TierDeveloper lets you do the following: Generate middle-tier data objects for your platform. Generate ASP.NET/ JSP application to test the generated middle-tier objects. Generate design documents for the generated middle-tier object.