compatibility
relative quality for interoperability of computer and telecommunication products at the hardware, software, normative, legal, regulatory, statutory or contractual level
forward compatibility
design characteristic that allows a system to accept input intended for a later version of itself
computer compatibility
technological compatibility of software and hardware
backward compatibility
property of a system, product, or technology that allows for interoperability with an older legacy system, or with input designed for such a system, especially in telecommunications and computing