interoperability

the ability of two or more systems* to exchange information and to use the information that has been exchanged.

definition adapted from the one contained in ‘ISO/TS 27790:2009, Health informatics— Document registry framework by BIM Interoperability Expert Group (BIEG)
*interoperability is referenced in terms of systems that are employed to implement the UK BIM Framework.

the ability of systems to provide services to and accept services from other systems and to use the services so exchanged to enable them to operate effectively together

ISO 37100:2016 Sustainable cities and communities — Vocabulary

the capability of devices of different types and from different manufacturers to exchange information and
commands via the communications network

ISO 16484-2:2004 Building automation and control systems (BACS) — Part 2: Hardware

a characteristic of a product or system, whose interfaces are completely understood, to work with other products or systems, at present or in the future, in either implementation or access, without any restrictions

AFUL.org Interoperability Working Group

the ability of computer systems or programs to exchange information

Oxford Dictionary

the capability of two or more functional units to process data cooperatively

ISO/IEC 2382-18:1999 Information technology — Vocabulary — Part 18: Distributed data processing