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Example from MIL-HDBK-881, which illustrates the first three levels of a typical aircraft system [1]. A work-breakdown structure (WBS) [2] in project management and systems engineering is a deliverable-oriented breakdown of a project into smaller components.
Before a project schedule can be created, the schedule maker should have a work breakdown structure (WBS), an effort estimate for each task, and a resource list with availability for each resource. If these components for the schedule are not available, they can be created with a consensus-driven estimation method like Wideband Delphi. [5]
Schedule baseline and work breakdown structure: The WBS which consists of work packages and WBS dictionary, which defines these work packages, as well as schedule baseline, which is the reference point for managing project progress, are included here. Project management plans: This section contains all management plans of all project aspects.
PERT chart explicitly defines and makes visible dependencies (precedence relationships) between the work breakdown structure (commonly WBS) elements. PERT facilitates identification of the critical path and makes this visible. PERT facilitates identification of early start, late start, and slack for each activity.
The work breakdown structure (WBS) is a tree structure that shows a subdivision of the activities required to achieve an objective – for example a portfolio, program, project, and contract. The WBS may be hardware-, product-, service-, or process -oriented (see an example in a NASA reporting structure (2001) ). [ 75 ]
Terminal elements and summary elements constitute the work breakdown structure of the project. Modern Gantt charts also show the dependency (i.e., precedence network) relationships between activities. Gantt charts can be used to show current schedule status using percent-complete shadings and a vertical "TODAY" line.
Product breakdown structure (PBS), Tool for analysing, documenting and communicating the outcomes of a project; Resource breakdown structure (RBS) Risk breakdown structure (RBS), Risk management technique; Value breakdown structure (VBS), Project management technique; Work breakdown structure (WBS), A deliverable-orientated breakdown of a ...
Work Breakdown Structure (WBS) is a tool that defines a project and groups the project's discrete work elements in a way that helps organize and define the total work scope of the project. A Work breakdown structure element may be a product, data, a service, or any combination. WBS also provides the necessary framework for detailed cost ...
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