Developing the Plant Breakdown Structure

However, in addition to its importance as a structured check list, both in contractual terms and, as we shall discuss in a moment, as a dimension of the project data base, it is the progressive development of the PBS that is such a valuable process. Firstly, depending on the starting point of the project, the Owners perception of what they want to end up with at the completion of the project will vary greatly in both justification and level of detail. Consequently, there is a process of questioning and probing to be completed before a clear picture emerges of what is required to meet the Owners initial requirements. 

Just as was the case for the WBS, there are some useful rules for developing the PBS, and they are (for obvious reasons) quite similar to those for the WBS  

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