Lean production theory: Moving beyond "Can-Do" *

Abstract

Lauri Koskela (1992) identified the first task for academics “is to explain the new philosophy in the context of construction” and this is the first objective here. The second is to provide a foundation to understand the contributions of Glenn Ballard which follow. The paper first discusses changes in the construction industry to suggest why a new (or for that matter any) production theory is required. The extent of the uncertainty experienced on projects leads to yet another comparison between manufacturing and construction. A new understanding of the construction process is offered. Next the concepts of flows and the role of Lean Production Theory (LPT) is examined. The paper closes with a reflection on the mental models which support current thinking. One caution, our perspective is drawn from experience in petrochemical and process piping projects. While there appear to be many parallels with experience in other project types, the specific thinking and applications occurred primarily in this industry segment.