Group Decision and Negotiation

, Volume 22, Issue 1, pp 53–67 | Cite as

The Yonmenkaigi System Method: An Implementation-Oriented Group Decision Support Approach

  • Norio Okada
  • Jong-Il Na
  • Liping FangEmail author
  • Atsushi Teratani


The Yonmenkaigi System Method (YSM) is presented as a participatory method to support group decision making. It is composed of four main steps: conducting a SWOT analysis, completing the Yonmenkaigi chart, debating, and presenting the group’s action plan. The YSM is an implementation and collaboration-oriented approach that incorporates the synergistic process of mutual learning, decision making and capacity building. It fosters small and modest breakthrough and/or innovative strategy development. The YSM addresses the issues of resource management and mobilization as well as effective involvement and commitment by participants and provides a strategic communication platform for participants. A case study for developing a disaster reduction action plan, carried out with a local community organization in the City of Kyoto, Japan, is used to demonstrate the characteristics of the YSM.


Collaborative action planning Group decision making method Participatory method The Yonmenkaigi system method 


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Copyright information

© Springer Science+Business Media B.V. 2012

Authors and Affiliations

  • Norio Okada
    • 1
  • Jong-Il Na
    • 2
  • Liping Fang
    • 3
    Email author
  • Atsushi Teratani
    • 4
  1. 1.Disaster Prevention Research InstituteKyoto UniversityKyotoJapan
  2. 2.Department of Management of Social Systems and Civil EngineeringTottori UniversityTottoriJapan
  3. 3.Department of Mechanical and Industrial EngineeringRyerson UniversityTorontoCanada
  4. 4.Nagi Postal OfficeChizuJapan

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