Microsoft Solutions Framework (MSF)

Source: http://msdn.microsoft.com/en-us/vs2005/aa718486.aspx

a team of peers is brought together to represent the entire set of constituents that are involved with the production, use, and maintenance of the product.
Each team member, or role, is accountable for representing the specific needs of its constituencies
No individual or role is more important than another
Multiple roles and views provide the necessary checks and balances to ensure that the team produces the right solution

Product definition, development, and testing occur in overlapping iterations
Different iterations have different focus as the project approaches release.
Each iteration should result in a stable portion of the overall system.