olemus
ISO/IEC/IEEE 24765, ISO/IEC 25010:
toote võime täita oma nõutud funktsioone tõhusalt, jagades samal ajal ühist keskkonda ja ressursse teiste toodetega, ilma et see avaldaks kahjulikku mõju teistele toodetele
= capability of a product to perform its required functions efficiently while sharing a common environment and resources with other products, without detrimental impact on any other product
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