We suggest you read a few of the design documents to clarify the intent, functionality and scope of the components.

This list contains all the design documents for the game. Each and every component is usually deserving of it's own design document. Some design documents will be technical specifications that are intended to be implemented, while some are merely discussion of parts and how they work together.

Design documents themselves should have overviews, and then drill down into specifics thereafter. Diagrams, pictures, examples are always good to have and can often clear up misconceptions.