The Alternatives Identification technique is part of the fourth edition PMBOK®’s Define Scope process.
The purpose of this technique is to generate ideas on different ways to accomplish the project. The desired work is already known, but there may be preferred ways to accomplish the work. Clearly, this should preferably be performed at the very early stages of the project before work is already begun using a less desirable method. At its basis, this tool is simply the generation of useful ideas. This can be accomplished in any of the typical ways such as brainstorming; lateral thinking; reverse thinking with no feedback; random word association with critical feedback; metaphors and supportive feedback; and exaggeration with feedback.