In this question, technical knowledge around a particular technique was being sought initially, followed by an evaluation as to whether key performance indicators measured the particular technique. Candidates found this part of the question challenging and tended to be able to describe the technique but not undertake the evaluation. This is an area where the examining team commented on the candidates writing very little as they appeared unable to apply the technique to the company.
Do you know what technique they were talking about or could you hazard a guess?