Successive Approximation Model 2
The second successive approximation model, SAM2, is an elaborated and extended version of SAM1 for situations in which development cannot be fully integrated with design. While there are many advantages to fully integrating design and development into a single cycle as is done in SAM1, it isn't always practical. Projects with large amounts of content, e-learning projects developed through programming rather than with quicker authoring tools, and organizations that need to begin development production only after design has been completed (such as when development is contracted out), are examples of when SAM2 may be needed.
Work in SAM2 is divided into three phases: preparation, iterative design, and ...