Abstract
“BeaM!” is a production management system that aims at supporting a BIM-integrated application of Lean Construction Management methods on construction sites. In particular, an advanced variant of the Last Planner System is integrated with BIM information on data processing level. This paper transfers the theoretical concepts of the “BeaM!” production management system into functional requirements for software implementation. The functional requirements are introduced along with a set of use cases and actors. Furthermore, a first prototype built using these functional requirements is presented. The prototype has been demonstrated to and evaluated by a total of 20 domain experts from practice to evaluate the prototype and its underlying functional requirements. Following a Design Science Research approach, the evaluation is focused on practical utility and applicability of the prototype. Findings as obtained from the demonstrations and expert interviews are presented and future development directions are outlined in this paper