Microsoft Solutions Framework (MSF) is a set of principles, models, disciplines, concepts, and guidelines for delivering information technology solutions from Microsoft. MSF is not limited to developing applications only, it is also applicable to other IT projects like deployment, networking or infrastructure projects. MSF does not force the developer to use a specific methodology (Waterfall, Agile) but lets them decide what methodology to use.
The MSF philosophy holds that there is no single structure or process that optimally applies to the requirements and environments for all sorts of projects. Therefore MSF supports multiple process approaches, so it can be adapted to support any project, regardless of size or complexity. This flexibility means that it can support a wide degree of variation in the implementation of software engineering processes while retaining a set of core principles and mindsets.
The Microsoft Solutions Framework Process Model consists of series of short development cycles and iterations. This model embraces rapid iterative development with continuous learning and refinement, due to progressive understanding of the business and project of the stakeholders. Identifying requirements, product development, and testing occur in overlapping iterations resulting in incremental completion to ensure a flow of value of the project. Each iteration has a different focus and result in a stable portion of the overall system.