It is easy to measure the time needed to draft an email or summarize a meeting. It is harder to measure whether the recipient understood the message, whether the summary omitted a decision, whether the employee now handles more valuable work, or whether the saved minutes were consumed by checking an unreliable output. Workplace AI productivity should be measured as a bundle: cycle time, quality, rework, completion rate, user adoption, customer outcome, and total cost.
The most useful first experiment is often shadow mode. Let an AI system produce a recommendation while the existing process continues. Compare its extraction, classification, or draft against a human baseline. Record not only obvious errors but also confident errors, missing context, unnecessary escalation, and the review time needed to trust a result. This creates evidence without giving a new system irreversible authority on its first day.
For a meeting-notes workflow, for example, measure whether decisions and owners are captured, whether sensitive content is handled correctly, how long a human spends editing, and whether action items are actually completed. For customer service, measure resolution quality, repeat contacts, escalation appropriateness, customer satisfaction, and the rate of unsupported claims. For coding, measure accepted changes, review time, defects, and rollback rather than lines of generated code.
McKinsey's finding that 39% of respondents reported enterprise-level EBIT impact from AI is a useful macro signal, but it is not an ROI promise for your organization. The result is self-reported and covers AI broadly. Your business case must include integration, evaluation, training, monitoring, human review, and the cost of errors. The right question is not whether AI is productive in the abstract. It is whether this workflow produces a better outcome at an acceptable total cost.