Establishing an Expandable Architecture for a Tele-teaching Portal

The complexity of web applications becomes a big problem, when applications are growing. Especially if new algorithms should be tested and compared, it is important to be able to separate the newly implemented functions from the core system. It is not enough to use standard frameworks to handle this, but to plan a maintainable structure for the application. This paper describes how a maintainable structure can be planned and implemented by using the Django framework while trying to avoid a big programming overhead. The new architecture for the main features and its advantages and disadvantages is described together with an example for a rating plug-in. An outlook on the possibilities for future developments using this architecture is provided as well.