Step 1 is to prepare and periodically update the as-plannedCPM schedule under technical and resource constraints, and resource availability and allocation practices from Step 0. Step 4 ofthe current window analysis is subdivided into Steps 4a and 4b.Step 4b is the same between the two analyses. By including Step4a, the enhanced analysis stresses rescheduling and resequencingthe not-yet-completed and not-yet-started activities, which reflectstechnical and resource constraints, and resource availability andallocation practice. Delays not only change critical paths butalso disorganize planned resource allocation practices. This appearsto be disregarded in current window analysis.