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A tenant is the most fundamental construct of a SaaS environment. As a SaaS provider building an application, you are making this application available to your customers. Any customer that you sign up to use your SaaS environment is one of the tenants of your system.

In the single tenant model, a single dedicated instance of an application is deployed for each customer. For example, with a N-tier architecture style application, all customers get a new dedicated instance of the web, middle, and data tiers. These tiers are not shared between these customers.

An Enterprise tenant offers additional administrative functionality compared to a Standard tenant, the major difference being multi-tenancy. Using an Enterprise tenant, you can: Create and manage subtenants. Manage the subscribed applications/features of the subtenants. Invoice subtenants based on usage statistics.

Tenancy in cloud computing refers to the sharing of computing resources in a private or public environment that is isolated from other users and kept secret. Tenancy in SaaS is divided into two types: single-tenant SaaS and multi-tenant SaaS.

A data tenant is an entity such as a person, organization or process, perhaps in combination with other things such as a product, that stores data in resources such as a database and requires data isolation and selective user access. Organizations typically refer to the tenant as the customer of their service.

A tenant can be an individual user, but more frequently, it's a group of users—such as a customer organization—that shares common access to and privileges within the application instance.

The difference is in how the software is accessed by customers. Single tenant provides each customer with a distinct software instance running on infrastructure that is not shared with other users. Multi-tenant uses a shared infrastructure to provide access to the SaaS solution to multiple customers.

In a multi-tenant architecture, multiple instances of an application operate in a shared environment. This architecture is able to work because each tenant is integrated physically but is logically separated. This means that a single instance of the software will run on one server and then serve multiple tenants.