In this chapter, we're going to look at extensions which add more reports, and functions to the dashboard. As concrete5 uses the MVC pattern to do this, we're also going to have a quick look at the theory behind this pattern. However, due to the targeted audience, we're only going to scratch the surface of the topic, in order to assure that a PHP programmer who hasn't worked with MVC before gets enough information to understand the pattern and use it in concrete5.