4.2.3.2 interoperability: degree to which two or more systems, products or components can exchange information and use the information that has been exchanged

ISO/IEC 25010:2011. Systems and software engineering - Systems and software Quality Requirements and Evaluation (SQuaRE) - System and software quality models, 2011 [ISO store Standards catalogue]

The ability of systems, units, or forces to provide services to and accept services from other systems, units, or forces and to use the services so exchanged to enable them to operate effectively together.

The Free Dictionary [The Free Dictionary]