Abstract
In current fast-changing markets, firms are obliged to advance a development project in the midst of uncertainty and anxiety about feasibility and loosely defined requirements. This study aims to create a process index for projects entailing uncertainty, and proposes to use a "communication frequency index" focusing on face-to-face communication between members. We apply this index to an actual development project that went through a change of plans, and we acquired quantitative communication frequency data of vertical and horizontal pathways using wearable sensors. The results show that communication frequency represents the particular behavior that contributes to a project's success, and that it corresponds to project members' actual behavior. The study confirmed the usefulness and validity of the proposed index.
