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Old 02-18-2013, 10:40 AM
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Product vs Process WBS for performance measurements

In order to assess performance of development projects, what is the preferred form of the WBS - product and component - based or process-based?

The projects are carried out by a company on a contract basis. The projects produce products consisting of hardware and software. The subjects matter of the products are similar, but the skills and methods are typically the same. The objective is to establish a performance history to be used for cost estimation of future projects.

It would seem in this case that the process-based WBS seems appropriate. Is this true or not?

Or...Do the top levels of the WBS break the work down by deliverable and the lowest level(s) break the work down by process?
- So that all software efforts are broken down by definition, design, implementation and testing - ie task or process.
- So that the time spent in each of these processes for each deliverable can be summed up as a total for the project. If this was true then one would have a matrix of costs - vertically by deliverable, and horizontally by process.
- Are these not the results required to estimate costs of future projects?

Last edited by louarnold; 02-18-2013 at 11:19 AM.
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