Before TPO Implementation begins, a consultant and the appropriate people in the organization's management and the selected domain should identify quantitative and qualitative performance and ROI - Return on investment -- expectations. Later TPO results will be compared to these expectations.
Since a captured reasoning strategy must be well organized and work for every situation within the expert's area of responsibility, the fastest and most effective way to capture a strategy is a series of one-on-one interviews. Capturing and organizing an expert's reasoning strategy usually takes 20 to 30 hours of the expert's time, but several months of the TPO consultant's time.
The first interviews are used to establish the initial structure, which is organized into thought process pathways. Most of the work is done following each interview when the reasoning strategy is expanded and refined based upon the expert's feedback obtained in the interview. Once a pathway has been identified, interviews are used to capture reasoning for that pathway.