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Product breakdown structure

In project management, a product breakdown structure (PBS) is an exhaustive, hierarchical tree structure of components that make up a project deliverable[?], arranged in whole-part relationship.

A PBS can help clarify what is to be delivered by the project and can help build a work breakdown structure.

E.g. PBS of a computer:

Main unit
- Housing
- Motherboard
  - CPU
  - RAM chips
  - ...
- FDD
- HDD
- Video card
- Sound card
- Network card
- LPT port card
Monitor
- CRT
- Housing
- Electronic components
Mouse
- Body
- Marble
- Cable
Keyboard
- ...

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