JSDAI is a toolkit for STEP (ISO 10303), the STandard for the Exchange of Product Model data, that enables linking of CAD, CAM, PDM, PLM, CAx systems. JSDAI supports the development of Express data models (ISO 10303-11) and their implementation in Java.
A framework to simply understandable control flows in applications. It is easy to manage flow by XML and annotations. There are many simple ways to catch actions such as transition, step entry or leaving, including control the decision similar to 'if' or 'switch' statements.