As ISO/TC 37/SC 5 advances ISO/FDIS 5060 toward final approval in late 2023, the translation industry is gaining its first unified international standard for evaluating translation output quality using harmonized error typologies.

Bridging ISO 17100 Process Standards with Output Quality Metrics

While ISO 17100:2015 and ISO 18587:2017 successfully standardized the *processes* and *linguist qualifications* for human translation and machine translation post-editing, the language industry long lacked an official ISO standard governing how to measure the quality of the translated *product* itself. Throughout autumn 2023, ISO Technical Committee 37, Subcommittee 5 finalized the draft of ISO 5060 (*Translation services — Evaluation of translation output — General guidance*), building upon years of research from the Multidimensional Quality Metrics (MQM) and DQF frameworks.

Standardized Error Categories and Severity Weighting

The ISO 5060 framework establishes seven core error dimensions—Terminology, Accuracy, Linguistic Conventions, Style, Locale Conventions, Audience Appropriateness, and Design/Markup—combined with objective severity levels (Critical, Major, Minor, Neutral). By adopting a standardized error typology across human translations and post-edited NMT output, enterprise buyers and LSPs can benchmark quality transparently across vendors and language pairs.

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