Petter has been consulting and teaching software technology for many years. He has nearly 3 decades of years of experience with object based design of real-time distributed systems in Smalltalk, C++, Node.js and Java. Since 1995 he has been working with patterns for enterprise specification and integration. He has been working on different approaches to teaching design patterns. Petter can be reached at: mailto:petter,graff@scispike.com ''He now works at SciSpike http://www.scispike.com'' ---- CategoryHomePage hallo?