Question: The BOM is the Bill of Materials, while the WBS is the Work Breakdown Structure. What is the difference between BOM and WBS?

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Project Management Terminology

Organizational Process Assets. Plans, processes, policies, procedures, and knowledge bases that are specific to and used by the performing organization.

Project Schedule Management. Project Schedule Management includes the processes required to manage the timely completion of the project.

Common Acronyms

EF (english) : Early Finish date

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Question to a Project Management Professional

Question Select the best option
The BOM is the Bill of Materials, while the WBS is the Work Breakdown Structure. What is the difference between BOM and WBS?
  1. A BOM is a list of components, while the WBS is the list of the deliverables to be produced.
  2. A BOM is a list of deliverables, while the WBS is the list of the components of these deliverables.
  3. A BOM is provided by the customer, while the WBS is prepared by the sponsor.
  4. A BOM is horizontal, while a WBS is vertical.
Answer & Explanation
Right answer
    1. A BOM is a list of components, while the WBS is the list of the deliverables to be produced.
    2. A BOM is a list of deliverables, while the WBS is the list of the components of these deliverables.
    3. A BOM is provided by the customer, while the WBS is prepared by the sponsor.
    4. A BOM is horizontal, while a WBS is vertical.

Explanation : A Bill of Materials (BOM) presents a hierarchical tabulation of the physical assemblies, subassemblies, and components needed to fabricate a manufactured product. The WBS is a deliverable-oriented hierarchical decomposition of the work to be executed by the project team to accomplish the project objectives and create the required deliverables.

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