What is it to structuralize with multiple viewpoints by using Goal Structuring Notation (GSN)?

Having multiple viewpoints are an indispensable capability for persons who can lead the development and operation of large-scale complex technological and social systems. In addition, the previous study describes as follows.”Citizens are diverse because our society has become more complex in recent years. Therefore how to evaluate, how to satisfy the required level of accountability, and how to reach a good agreement are problems that must be addressed.” This study therefore aims to evaluate whether Goal Structuring Notation (GSN) is a notation method structuralizing with multiple viewpoints for agreement formation. Through the evaluation, this study intends to clarify what it is to structuralize with multiple viewpoints by using GSN. A quantitative evaluation method and a qualitative evaluation method are used for data analysis. This study discusses structuralizing with multiple viewpoints. Concretely, this study showed that structuralizing with multiple viewpoints: 1) Connects multiple viewpoints, creates new boundaries, and enables structuralizing what was described by using GSN, when multiple Strategy nodes are used. 2) Enables expressing a combination of a viewpoint that is selected from multiple viewpoints aligned in the horizontal direction, and a viewpoint that is selected from multiple viewpoints aligned in the vertical direction, when one Strategy node is used. 3) Enables discovering an unexpected viewpoint through a conversation using GSN. Finally, this study concludes with future research topics.