Identity and Access management (IdM) is the management of individual /User, authentication, authorization, privileges and security within or across system and enterprise while decreasing cost, downtime and repetitive tasks.
Identity Management may involve one or more technologies such as Directory services (LDAP), Digital Cards, Service Providers, Identity Providers, Access control, Digital Identities, Password Managers, Single Sign-on, One Time Tokens, WS-Trust, SAML 2.0.