Last Modified 01/22/06
5 Software Size Estimation Tips
- Analyze similar, past projects to
generate the historical data needed to estimate the size of new software projects. Relying
on memory is not effective and leads to poor estimates.
- Include data gathered from
software and test team members. Early project team involvement, not only serves to improve
the accuracy of the estimate, but also prepares the team for the eventual project start
- Keep in mind that experience is the
key to effective software size estimation. The larger the project, the more experience
required to make a good estimate.
- Use multiple estimation
techniques. During the initial estimation stage, the comparative results of different
estimation techniques provides the best estimate.
- Revise the initial size estimate as
new information becomes available. During the design phase as the major software pieces
come into focus, each module can be estimated separately, the sum of which reflects a
revised, more accurate estimate.
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