This guide provides an overview and description of Agile Business Suite Developer and its various components, such as System Modeler, Painter, Windows Presentation Foundation (WPF) Designer, Debugger, Builder, and so on. It also covers detail of Automated Test Tool (ATT) menu within System Modeler included in AB Suite Developer and provides the functions to record test cases, play back the recorded test cases, and view the results of a playback operation for AB Suite transactions.