BIM-enhanced collaborative smart technologies for LEAN construction processes

LEAN Management is rapidly gaining interest in the construction industry, while stakeholders have to improve productivity and efficiency of building processes. Such management methods and principles proved to be useful in other sectors (e.g. automotive), and most of the feedbacks in construction projects are positive, although it is recognized that important implementation efforts are required. In parallel, Building Information Modeling (BIM) is a key approach in making the projects' processes more fluent, transparent and integrated, although some barriers (both technological and contractual) make its adoption slower than it was initially expected. This article describes some findings of an action-research project investigating links between both approaches. It defines a two-steps technological proposal for LEAN methods, towards a full-BIM information system for LEAN management of construction processes. First, the Smart Construction Planner is a response for implanting digital LEAN methods at short-term, on construction sites. Second, a mapping of 4D/BIM uses to LEAN methods and principles defines the way to future LEAN/BIM IT developments.