Quick Answer: What Is A WBS Diagram?

What is a WBS and how does it work?

A WBS, as defined in the PMBOK® Guide—Third Edition 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.

It organizes and defines the total scope of the project..

What is WBS example?

For example, here’s a WBS example for an aircraft system: … Thus, you might have one group responsible for building an aircraft. Within this group, you might have one team focused on building the airframe, another on creating a propulsion system, and so on. It’s common to have three levels of decomposition in the WBS.

How detailed should a WBS be?

Generally speaking, a WBS should include about three levels of detail. Some branches of the WBS will be more subdivided than others, but if most branches have about three levels, the scope of your project and the level of detail in your WBS are about right.

What does a WBS dictionary look like?

For each WBS element, the WBS Dictionary may include a brief definition of the scope or statement of work, defined deliverable(s), a list of associated activities, and a list of milestones. … The WBS dictionary is also an essential part of the scope baseline.

What is the purpose of WBS?

A work breakdown structure (WBS) is a tool that can be used for projects, programs, and even initiatives to understand the work that has to be done to successfully produce a deliverable(s). The benefits of creating a WBS include: it defines and organizes the work required.

What are the steps in WBS?

A Four-Step Guide to the Work Breakdown StructureStep One: Identify the most important pieces of scope. … Step Two: Decide on the best project organization. … Step Three: Break down the project. … Step Four: Identify the known attributes for each activity.

What are the 3 levels of work breakdown structure?

The WBS contains 100% of all the work in the project. At the top level is the project ultimate goal, the second level contains the project objectives, the third level has the project outputs and the fourth level with activities.

What does WBS include?

WBS is a hierarchical and incremental decomposition of the project into phases, deliverables and work packages. It is a tree structure, which shows a subdivision of effort required to achieve an objective; for example a program, project, and contract.

What is lowest level of WBS?

Work packages”Work packages are the lowest level of the WBS and are pieces of work that are specifically assigned to one person or one team of people to be completed.” “The WBS Dictionary describes each component of the WBS with milestones, deliverables, activities, scope,and sometimes dates, resources, costs, and quality.”

What are the different types of WBS?

The Project Management Institute (PMI) Project Management Book of Knowledge (PMBOK) defines the Work Breakdown Structure as a “deliverable oriented hierarchical decomposition of the work to be executed by the project team.” There are two types of WBS: 1) Deliverable-Based and 2) Phase-Based.

What is a Level 3 WBS?

Level 3 items are key activities required to produce the Level 2 deliverables. Additional levels are used depending upon the magnitude of the deliverables and the level of detail required to reliably estimate cost and schedule. In the deliverable-oriented WBS, all deliverables are identified, and all work is included.