Applying Level of Detail in a BIM-Based Project: An Overall Process for Lean Design Management

Few construction companies apply the available lean tools and processes in an integrated manner when managing design. Additionally, lean design management tools and processes each have their own strengths and optimal phases in which they should be applied. Earlier approaches in lean design management have not explicitly included the level of detail of building information model (BIM) models in connection with planning methods. For example, the Last Planner System (LPS) uses collaborative social methods to obtain task dependencies and commitments from project stakeholders, but it does not provide any guidance regarding what those tasks should be in a BIM-based process. With regard to production, this guidance is provided by combining location-based methods, such as a location-based management system or takt planning, to LPS. In a similar manner, by combining information from various sources, this paper defines a location-based design management process using the concept of level of detail that can be integrated with LPS. The level of detail definition must be based on the requirements of the end-user in each stage of the construction project. The process was cocreated and validated in focus group meetings with design and construction companies and further evaluated and assessed by applying it in a case project.

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