Step 2 − Use Wideband Delphi Technique or Three-point Estimation to arrive at the Effort Estimates for the Tasks. If a task is of larger duration, split it. We suggest that the tasks should not be more than 8 hrs. Step 1 − Use Wideband Delphi Technique to construct WBS. Step 3 − Use either Analogy or Wideband Delphi to arrive at the size estimates. This is useful in estimating effort and schedule in the system. The activities are further broken into tasks. This is useful in estimating the size of the system.Īctivity WBS − In activity WBS, the system is broken based on the activities in the system. Types of WBSįunctional WBS − In functional WBS, the system is broken based on the functions in the application to be developed. This type of organizational chart structure can be easily drawn with the features available in MS-Word. The following illustration shows how a tree structure view looks like. The Tree Structure View presents a very easy-to-understand view of the entire project. Let us now take a look at the tree structure view.
Review preliminary software specifications.Obtain approvals to proceed (concept, timeline, and budget).Incorporate feedback on software specifications.
Review software specifications/budget with the team.Draft preliminary software specifications.It looks somewhat similar to the following − It uses numbers to record the various stages of a project. It presents a good view of the entire project and allows easy modifications as well. The outline view is a very user-friendly layout.
Let us first discuss how to use the outline view for preparing a WBS. Tree Structure View (Organizational Chart).WBS is represented as a hierarchical list of project’s work activities. WBS also provides the necessary framework for detailed cost estimation and control along with providing guidance for schedule development and control. WBS element may be a product, data, service, or any combination thereof. The Project Management Body of Knowledge (PMBOK) defines WBS as a "deliverable oriented hierarchical decomposition of the work to be executed by the project team." WBS is a key project deliverable that organizes the team's work into manageable sections. Work Breakdown Structure (WBS), in Project Management and Systems Engineering, is a deliverable-oriented decomposition of a project into smaller components.