Toward impact analysis for uncertain software project

This paper proposes an impact metric for assumed software changes described in UML diagrams for embedded systems. The impact metric indicate that degree of ease to change software according to changes of requirements and designs, and based on complexity metric of UML class and state machine diagrams. We also demonstrate the proposed impact measure to conduct some experiment to develop a sample project. The evaluation indicates that the proposed metric have a strong correlation with degree of ease to change target project.