The main flow revolves around 4 main operations.

Create A new Rating
The data consumer creates a new rating object, on a specific agreement and data provider, containing the actual subratings, as well as a free text comment.

Respond to a Rating
The data provider can post a free text response, on the rating object created by the consumer, addressing various points in the rating or the comment.

Update a Rating
The data consumer can either change the actual subratings, or their comment on a previously created rating. This deletes any previous responses from the provider automatically (as they are no longer applicable).

Aggregate Ratings
Everyone can retrieve the total rating of a provider (not applicable to consumers) based on every rating object posted for that particular provider.