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Multitenancy

Overview​

Multitenancy is a reference to the mode of operation of software where multiple independent instances of one or multiple applications operate in a shared environment. The instances (tenants) are logically isolated, but physically integrated.

Terms​

  • Person - Physical person with name, contacts (email, address, phone number, etc.)
  • User - Authentication entity. User account are login data for users and data for access to tenants, organizations.
  • Tenant - Logical container for data of one Company.
  • Organization - Organization of Company.

Rules​

  • One Person can have multiple User accounts.
  • User account always connected with one Person.
  • Tenant contains one or more Organizations.
  • Only one tenant can be selected at a time on User account.
  • Selected Organization can be override by custom headers per request.

Tenant data isolation​

One user one Tenant access​

Isolation of the user to the database. Two users and each have access to their tenant's data and both have access to common non-tenant data. images/multitenancy_overview.png

One user multiple Tenant access​

One user account can have access to multiple tenants. images/multitenancy_overview2.png

Relationships of users, tenants and organizations​

images/multitenancy_01.png