The first chapter shows the theory and deployment of the ZK framework. Now it's time to do the things that we are here for: implementing applications with ZK. The next three chapters will show the detailed implementation of a small, but rich application. It's not really possible to use all components in this application, but the application at the end of Chapter 4 has many things that you will need in your first project with the ZK framework.
With the help of this chapter, you should be able to build your own applications based on the ZK framework. In this chapter, we only build the cornerstone of the Online Media library, and improve it step by step in the next chapters.