Open In App
Related Articles

Software Engineering | Work Breakdown Structure

Improve Article
Save Article
Like Article

A Work Breakdown Structure includes dividing a large and complex project into simpler, manageable and independent tasks. The root of this tree (structure) is labelled by the Project name itself. For constructing a work breakdown structure, each node is recursively decomposed into smaller sub-activities, until at the leaf level, the activities becomes undividable and independent. It follows a Top-Down approach.


  • Step-1: Identify the major activities of the project.
  • Step-2: Identify the sub-activities of the major activities.
  • Step-3: Repeat till undividable, simple and independent activities are created.

Construction of Work Breakdown Structure:
Firstly, the project managers and top level management identifies the main deliverables of the project. After this important step, these main deliverables are broke down into smaller higher-level tasks and this complete process is done recursively to produce much smaller independent tasks. It depends on the project manager and team that upto which level of detail they want to break down their project.

Generally the lowest level tasks are the most simplest and independent tasks and takes less than two weeks worth of work. Hence, there is no rule for upto which level we may build the work breakdown structure of the project as it totally depends upon the type of project we are working on and the management of the company. The efficiency and success of the whole project majorly depends on the quality of the Work Breakdown Structure of the project and hence, it implies its importance.


  • It allows to do a precise cost estimation of each activity.
  • It allows to estimate the time that each activity will take more precisely.
  • It allows easy management of the project.
  • It helps in proper organisation of the project by the top management.
Last Updated : 15 Mar, 2019
Like Article
Save Article
Similar Reads