User, role, tenant management in different applications

User, Role, and Tenant Management in Modern Applications Unless you are building a very simple application with no authentication—or a static website without user accounts—most systems require some form of user management. In its simplest form, user management involves allowing users to register with an email address, optionally confirm that email, and gain access to the system. This model was sufficient in the early days of the web, particularly in the late 1990s and even into the 2005–2010 era