What does "multitenancy" mean in programming?
multitenancy is one of the most common terms in software development. This guide explains what it means, how it is used in practice, and why it matters, with real examples from the developer world.
Definition
An architecture where a single instance of an application serves multiple customers (tenants), with their data isolated from each other. Three main strategies: shared database with a tenant_id column (simplest), separate schemas per tenant, or separate databases per tenant (most isolated). SaaS products are typically multitenant.
Example
"Our app is multitenant: all customers share the same database, but every query filters by tenant_id to ensure data isolation."
Related terms
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