The model of offering services by subscription. Two common subscription models are platform-as-a-service (PaaS) and software-as-a-service (SaaS).
- PaaS: An environment (a “platform”) in which to build your -backed website and deploy it. The environment is generally marketed as being optimized to run applications built with that CMS.
- SaaS: A complete, hosted CMS that allows a website to be managed editorially without having to develop or deploy code.
Both PaaS and SaaS are normally multi-tenant services.
This is the opposite of on-premise software.