Investigating the impact of project scope definition on design-build project performance: A system dynamics approach

This research evaluated how clearly defining project scope, as the first step of project delivery, impacts the time and cost of design-build (DB) projects. To achieve this, a system dynamics method was adopted to develop a qualitative model. The behaviour analysis of this model revealed that improving the level of project scope clarity can enhance cost and time performance of DB projects, even though determining appropriate clarity level is a challenging task. The obtained model can assist clients by providing a clear view regarding the procedures for project scope definition and identifying how to improve the clarity of the project scope