Stylistic quality (2.2.1.1.2.2/173) - how closely does the style of the translation match the style of the source text, how difficult is it to have the system produce translations in the organization's characteristic style.
Reliability (2.2.2/600) - how reliable is the system; if it breaks, how easily can the repair be tested, how does it behave on encountering unexpected or erroneous input, how does it behave when it crashes, how often does it happen, how difficult is it to restart.