①Work:

②Breakdown decomposition:

③Structure structure:

④WBS decomposition steps:

① Belongs to the scope management knowledge field;

②Input:

③Tools and techniques:

④Output:

① Determine the project scope:

②Assign project work:

③Estimated project cost:

④Control project progress:

⑤Conversion project value:

①100% principle:

②Elements are mutually exclusive:

③Revolving around output:

④ Work package granularity, deliverable, assignable, and responsibilities assigned to people.

①Decompose according to the physical structure of the product

②Decompose by function of product or project

③Decompose according to implementation process

④Broken down by geographical distribution of projects

⑤Decompose according to each goal of the project

⑥Broken down by department

⑦Decompose by function

① Put forward a demand: Obtain the initial demand document when the user puts forward a demand;

② Requirements confirmation: All project participants meet to discuss requirements, confirm all major project work, and determine the way to decompose project work;

③ Decompose the project: If there are on-site templates, you should try to use them;

④Sitemap production: draw the hierarchical structure diagram of WBS;

⑤ Make a detailed WBS: subdivide the project into enough detail to estimate the work package (cost and duration), arrange the schedule, make a budget, and assign responsible personnel or organizational units;

⑥WBS review: Verify the accuracy of the above decomposition;

⑦WBS version confirmation: establish a numbering system;

⑧WBS update: As other planning activities proceed, the WBS is continuously updated or revised until all work is covered.