The document discusses WSO2 Developer Studio, a development tool for writing applications that can be hosted on WSO2 carbon servers. It is based on the popular Eclipse IDE and contains tools needed to configure enterprise architectures. The document provides an example of a simple carbon application artifact and outlines how Developer Studio supports ESB, registry, data services, and other tools. It also gives an overview of how the tool enables fully Maven integration and CAR-based deployment. Finally, it demonstrates Developer Studio by walking through building a banking application that uses services, processes, and registries.