Looking for Improvement in the Last Planner System: Defining Selection Criteria

Last Planner System has been critiqued for an inconsistent application of flows. Central for this critique was that the sequence of activities was determined based on only duration and interrelationships. In an attempt to improve the on-site scheduling processes, an in-depth analysis of selection criteria was carried out. Six flows are identified as relevant: workforce, material, and machinery which comprise the needed resources and safety, climate conditions, and space which affect the pace of the work. Because of the importance to progress in the workflow, and the on-schedule completeness of activities, all six flows need to be systematically controlled. The output of the analysis is a list of recommendations of how to refine the schedules by including the six flows in the Phase Scheduling, Look-Ahead, and Commitment levels.