Most people find it easier to understand an application if you show them a high-level diagram. While this is ideally created by someone who understands the workings of the application, there are tools that can create very helpful high-level depictions of a Django application.

A graphical overview of all models in your apps can be generated by the graph_models management command, which is provided by the django-command-extensions package. As shown in the following diagram, the model classes and their relationships can be understood at a glance:

This visualization is actually created using PyGraphviz. This can get really large for projects of even medium complexity. Hence, it might be easier if the applications are logically grouped and visualized separately.