An element of a large system—such as an identity card, issuer, card reader, or identity verification support—within the PIV system.
Sources:
FIPS 201-3 under Component

  A discrete identifiable information technology asset that represents a building block of a system and may include hardware, software, and firmware.
Sources:
NIST SP 800-128 under system component
NIST SP 800-171r3 under system component from NIST SP 800-128
NIST SP 800-172 under system component from NIST SP 800-128
NIST SP 800-172A under system component from NIST SP 800-128
NIST SP 800-37 Rev. 2 under system component from NIST SP 800-128
NIST SP 800-53 Rev. 5 under system component from NIST SP 800-128
NIST SP 800-53A Rev. 5 under system component from NIST SP 800-128

  A software object, meant to interact with other components, encapsulating certain functionality or a set of functionalities. A component has a clearly defined interface and conforms to a prescribed behavior common to all components within an architecture.
Sources:
NIST SP 800-95 under Component from Web Services Glossary - W3C Working Group Note 11 February 2004

  A discrete identifiable IT asset that represents a building block of an information system.
Sources:
NIST SP 800-128 under Information System Component

  Any hardware, software, and/or firmware required to construct a CKMS.
Sources:
NIST SP 800-152 under Component

  An element such as a fingerprint capture station or card reader used by an issuer, for which [FIPS 201-2] has defined specific requirements.
Sources:
NIST SP 800-79-2 under Component

  See system component.
Sources:
NIST SP 800-128
NIST SP 800-172
NIST SP 800-37 Rev. 2
NIST SP 800-53 Rev. 5
NIST SP 800-53A Rev. 5

  Member of a set of elements that constitute a system.
Sources:
NIST SP 800-160 Vol. 2 Rev. 1 under system element from ISO/IEC/IEEE 15288:2015
NIST SP 800-160v1r1 under system element from ISO/IEC/IEEE 15288:2015
NIST SP 800-37 Rev. 2 under system element from ISO/IEC/IEEE 15288:2015

  See information system component.
Sources:
NIST SP 800-128 under Component

  Discrete identifiable information technology assets that represent a building block of a system and include hardware, software, firmware, and virtual machines.
Sources:
NIST SP 800-160 Vol. 2 Rev. 1 under system component from NIST SP 800-53 Rev. 5

  A discrete identifiable information or operational technology asset that represents a building block of a system and may include hardware, software, and firmware.
Sources:
NIST SP 800-161r1-upd1 [11/1/2024 errata update] under system component

  An entity with discrete structure, such as an assembly or software module, within a system considered at a particular level of analysis. Component refers to a part of a whole, such as a component of a software product, a component of a software identification tag, etc.
Sources:
NISTIR 7695 under Component from ISO/IEC 19770-2 - Adapted

  A hardware, software, or firmware part or element of a larger system with well-defined inputs and outputs and a specific function.
Sources:
NIST IR 8401 from DHS RCF - adapted
NIST IR 8441 from DHS RCF - Adapted

  A hardware, software, firmware part or element of a larger PNT system with well-defined inputs and outputs and a specific function.
Sources:
NIST IR 8323r1 from DHS RCF v2.0 - adapted