The Graph Visualization Framework Tulip now enjoys 10 years of user experience, and has matured its architecture and development cycle. Originally designed to interactively navigate large graphs, the framework integrates state-of-the-art software engineering concepts and good practices. It offers a large panel of graphical representations (traditional graph drawing as well as alternate representations). Tulip is most useful in a data mining and knowledge discovery context, allowing users to easily add their own data analysis and computing routines through its plug-in architecture.