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Communicating expectations
You will then need to convey this information to your people. For example, when introducing a new estimation process, the information presented could describe:
What the practice is supposed to accomplish
e.g., this estimation process can beused to estimate any kind of project, provide a detailed task list, clarify project assumptions and build consensus among the participants of the project.
Why it is needed
e.g., to help meet current deadlines, correctly scope the project, increase schedule predictability, and reduce cost overruns.
How and when it should be used –e.g.,
At the start of a project or phase
When there is a change in requirements
For projects (or sections of a project) where there is no good historical data
When many opinions exist about the project scope and what is involved
For high-risk sections of the project that require more thorough evaluation
When supporting a new estimation process, you can try several things to help make it successful –e.g.,
Require project teams to prepare estimates prior to performing project work
Provide time in the current schedule to perform the estimation process (as little as one-half day)
Require the recording of estimates to build an historical database
Use the estimation process for your work