The preceding chapters show the applications you can build today using Microsoft's e-business server products. The current suite of e-business servers addresses both intra and inter enterprise deployment scenarios. The figure below shows a conceptual overview of the current e-business servers and how they fit into the framework of solutions and portal services available in the e-business suite today. Chapter 3, "Overview of .NET Enterprise Servers," provides a broad overview of each server. Here, we provide a brief recap of the highlights to show how these servers are evolving into the vision for tomorrow.