Practice Standard for Work Breakdown Structures - Second Edition

Appendix I

Process Plant Construction Work Breakdown Structure (WBS) Example

Process Plant Construction Project WBS

This is an example of an engineering-oriented WBS, rather than a contractor-oriented WBS, as the orientation is on the design of systems rather than on the startup and commissioning of systems. Communication between the engineering team and the construction/commissioning team needs to be very good to minimize problems during construction. In practice there can be problems when engineers design based on “Systems,” while the Crafts/Trades (Contractors) do their work by location and sequence.

It should be noted, however, that whether the WBS has a systems focus, a structure focus, or deliverable focus, the sequence of work is not ...