SAB - The Software Architecture Browser

Sab is a tool for automatic generation of class diagrams from Java code. In addition to hierarchical layout, it features a wealth of user interaction facilities for dealing with complex software. Its main trait, however, is its support for visualizing hierarchical layers of a system. Sab is well suited for exploring and reengineering arbitrary systems, including the standard libraries. The central features of the tool are presented, and an overview on its implementation is given