Looks good so far. Its similar to the schema we used for a licensing/subscription system that I worked on in the past, Identities-Licenses-Resources map on to Customer-Subscription-Tenancies.

A couple of areas where we did things differently were to:

* Model parent-child relationships between Resources (which may have been a specific piece of content, or access to a website, or website feature). This allowed individual features to be separately licensed, but then gathered together in a “bundle” and licensed as a whole. This gave great flexibility when re-packaging product features. But looks like the same can be achieved here by defining new Subscription Levels.

* Modelling parent-child relationships between Licences (Subscriptions in your schema) so that we could, for example, provide a limited trial access to a specific service or feature as part of a separate Subscription, separately track the start/end dates, but still tie them together.

* We had a few more properties around the subscription dates. To allow for gracing periods, e.g time for customers to renew, we often used separate renewal dates and/or gracing periods. This allowed us to avoid cutting off access to a service while a contract was being negotiated, etc.

Thought I’d mention those for context.

Cheers,

L.