noun
Technical computing term referring to the ability of different systems or components to work together.
このソフトウェアは相互動作性が高い。
This software has high interoperability.
異なるプラットフォーム間の相互動作性を確保する必要がある。
We need to ensure interoperability between different platforms.
互換性 (compatibility) is broader and often refers to the ability to substitute one component for another, while 相互動作性 specifically emphasizes the ability to work together and exchange information.
Compound of 相互 (mutual) + 動作 (operation) + 性 (-ity), likely a calque from English 'interoperability'.