WinWin Spiral Model &
Groupware Support System


last updated 05/16/2002

Early WinWin Research

The WinWin Spiral Model uses Theory W (win-win) to develop software and system requirements, and architectural solutions, as win conditions negotiated among a project's stakeholders (user, customer, developer, maintainer, interfacer, etc.). The WinWin negotiation tool is a Unix workstation-based groupware support system that allows stakeholders to enter win conditions, explore their interactions, and negotiate mutual agreements on the specifics of the new project being contracted. The model and support system also feature a central role for quantitative tradeoff analysis tools such as COCOMO®.


EasyWinWin is a requirements definition methodology that builds on the win-win negotiation approach and leverages collaborative technology to improve the involvement and interaction of key stakeholders. With EasyWinWin, stakeholders move through a step-by-step win-win negotiation where they collect, elaborate, and prioritize their requirements, and then surface and resolve issues.  

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