Extended Goal Graph: A Support Tool for Discovering Conflicts among Stakeholders and Promoting Requirements Elicitation with Goal Orientation

Requirements for a system are often discovered during negotiation process, at the time when stakeholders of the system are thinking over their premises or backgrounds behind other stakeholders' requirements, rather than at the time when stakeholders thinking about their own requirements. Disagreements and conflicts between stakeholders are utilized as a driver to discover requirements for the system. In this paper, we propose a support tool for discovering conflicts among stakeholders, called an extended goal graph. We implemented a prototype of the tool and applied the prototype to a requirements meeting to confirm feasibility for discovering conflicts.