Document design approaches of individual modules and extension modes #298
Description
Various modules in Salespoint use different designs in terms of which DDD building blocks they implement. Some solely work with an aggregate and repository (e.g. inventory, catalog), others expose a service implementation in front of those (e.g. order, user accounts). Those design decisions result in different ways to extend the module.
We should give a high-level overview about those approaches and document what steps to take if need arises to extend those.