Cloud
Cloud technologies encompass both Software and Infrastructure that you purchase as a service on an ongoing basis, as opposed to on premise infrastructure and software that is bought with a perpetual model. The following definitions are central concepts in cloud technologies:
Subscription plan - A specific type of subscription that includes a group of entitlements, typically assigned to a user. Software as a Service (SaaS) offerings are often licensed per subscription plan.
Web application - An application that is accessed via a web browser, typically hosted by a software manufacturer.
Microsoft Office 365 Estate - All of an organization's Microsoft Office 365 accounts, subscriptions and users.