In Part II we described the ideas behind our new database architecture and explained the technical details it is founded on. In this chapter we describe how we can best take advantage of the technology from an application development perspective. In Section 6.1 we discuss how changing the way enterprise applications are written to take advantage of the SanssouciDB architecture, can dramatically improve performance. We go on, in Section 6.2 to give some examples of prototype re-implementations of existing applications, to show that the use of in-memory technology can reduce the complexity of the applications, as well as improve their performance.