Gartner defines identity governance and administration (IGA) as the solution to manage the identity life cycle and govern access across on-premises and cloud environments. To accomplish this, IGA tools aggregate and correlate disparate identity and access rights data, and provide full capability controls over accounts and associated access. IGA solutions also fulfill the purpose of unifying and correlating identity data for organizations with multiple person and machine identity authoritative sources. This is done to provide a single view of identity (system of record) for their dependent processes and systems
Gartner defines privileged access management (PAM) as tools that provide an elevated level of technical access through the management and protection of accounts, credentials and commands, which are used to administer or configure systems and applications. PAM tools — available as software, SaaS or hardware appliances — manage privileged access for both people (system administrators and others) and machines (systems or applications). Gartner defines four distinct tool categories for PAM tools: privileged account and session management (PASM), privilege elevation and delegation management (PEDM), secrets management, and cloud infrastructure entitlement management (CIEM).
Gartner defines zero trust network access (ZTNA) as products and services that create an identity and context-based, logical-access boundary that encompasses an enterprise user and an internally hosted application or set of applications. The applications are hidden from discovery, and access is restricted via a trust broker to a collection of named entities, which limits lateral movement within a network.