Organizations adopt methodologies with a fanatical doctrine that does not allow the organization to realize the need for a framework. These organizations believe their methodology is applicable to all projects and, if properly followed, will develop the right system landscape. Unfortunately, these methodologies primarily focus on how to deploy a given project best, but do not ask the questions of whether the project is viable or, worse, what priority of projects should be undertaken.
Again, a methodology is generally a project-centric view and not an enterprise-centric view. The framework is essential to identify the right projects that a methodology governs.
The past few decades have seen the development of several types of lifecycle models that resulted in the creation of the following major methodologies:
Standard Development Life Cycle (SDLC)
Waterfall
Spiral
Rapid Application Development (RAD)
Rational Unified Process (RUP)
There are more methodologies than those cited in the above list, but these are the more popular and are in existence in organizations today.
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