Interoperability - The ability of systems, units, or forces to provide data, information, materiel, and services to and accept the same from other systems, units, or forces and to use the data, information, materiel, and services so exchanged to enable them to operate effectively together. IT and NSS interoperability includes both the technical exchange of information and the end-to-end operational effectiveness of that exchange of information as required for mission accomplishment. Interoperability is more than just information exchange. It includes systems, processes, procedures, organizations and missions over the life cycle and must be balanced with information assurance. E2.1.14.
Interoperability - Capability of one system to communicate with another system through common protocols.
Interoperability - For the purposes of this standard, interoperability allows any government facility or information system, regardless of the PIV Issuer, to verify a cardholder's identity using the credentials on the PIV Card.
NIST IR 7298
Interoperability - In FIPS 201, interoperability allows any Government facility or information system, regardless of the cardholder's parent organization, to authenticate cardholder's identity using the credentials stored on the Personal Identity Verification (PIV) card. SOURCE: FIPS 201
NIST SP 800-116
Interoperability - In this publication, the quality of allowing any government facility or information system to verify a cardholder's identity using the credentials on the PIV Card, regardless of the PIV Card Issuer ( PCI).