Wednesday, May 30, 2012 in , , , , , , , , ,

Win-Win Spiral Model

Boehm and Ross (1989) extended the original spiral model by including considerations related to stakeholders. The win-win spiral model uses the theory W management approach, which requires that for a project to be a success, the system’s key stakeholders must all be winners. The way to achieve this win-win condition is to use the negotiation based approach to define a number of additional steps of the normal spiral development cycle. The additional steps are the following:
• Identify next-level stakeholders.
• Identify stakeholders’ win conditions.
• Reconcile win conditions.
• Establish next-level objectives, constraints, and alternatives.
• Evaluate product and process alternatives.
• Resolve risks.
• Define the next-level of product and process, including partitions.
• Validate product and process definitions.
• Review and commit.
The advantages from a win-win spiral model is the collaborative involvement of stakeholders that results in less rework and maintenance, early exploration of alternative architecture plans, faster development, and greater stakeholder satisfaction upfront.

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