SCIM is emerging as a standard for user and group management and is often used instead of the traditional LDAP protocol. SCIM provides the flexibility that is required for HTTP REST, cross-enterprise, and cloud application deployments. As many cloud services do not offer an LDAP interface, you can use SCIM independent of the underlying protocols.
The SCIM protocol is an application-level, REST protocol for provisioning and managing identity data on the web. The protocol supports creation, modification, retrieval, and discovery of the core identity resources, which are users and groups, and also custom resource extensions.