Headway Software has announced the release of Structure101 Beta2. They write in, "For version 2 we focused on making deeper structural analysis possible by introducing the following new features: 1. A new Slice perspective lets you see your whole code-base at any level of composition, for example at the class level, package level or at any design level. It also lets you quickly discover tangles and how they percolate up through the higher levels. 2. Dependency Structure matrices ('DSM's') give you a new way to make sense of very large graphs. 3. Tagging is the glue that lets you understand how items or tangles roll up through different slices and hierarchies. 4. Hiding allows you to easily remove tagged items from the Structure101 model."