Each piece of software may be purpose-built for the new tenant, or the tenant can customize the user interface ( UI) after installation. In addition, the architecture only allows one instance per SaaS server. In a single-tenancy architecture, every tenant will have their own single database and software instance, which isolates each tenant's data from one another.

Potential customers would likely choose a single-tenant infrastructure over other possible options for the ability to have more control and flexibility in their environment for addressing specific requirements. Because tenants are in a separate environment from one another, they are not bound in the same way tenants using a shared infrastructure would be. Some common characteristics of single-tenancy models are that they tend to provide a high level of user engagement and user control, as well as reliability, security and backup ability.

The host provider will aid in managing the software instance and dedicated infrastructure while still lending nearly full control to a single tenant for customization of software and infrastructure.

In single-tenancy architectures, a customer - called a tenant - will have a singular instance of a SaaS application dedicated to them. Single-tenancy is commonly implemented in software as a service ( SaaS) delivery models or in cloud services. Single-tenancy is an architecture in which a single instance of a software application and supporting infrastructure serves one customer.

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