Final answer:
A Work Breakdown Structure (WBS) is a project management tool that defines the project's total scope by organizing work into manageable sections. It facilitates better planning and accountability as opposed to other tools like Gantt charts or Network Diagrams.
Step-by-step explanation:
A Work Breakdown Structure (WBS) is a deliverable-oriented grouping of the work involved in a project that defines the total scope of the project. Unlike a contract, which is a legal document between parties, or a Gantt chart and Network Diagram, which are tools used for project scheduling and visualization, a WBS is utilized to break down the project scope into manageable chunks called work packages. By doing so, project managers can ensure a more organized and systematic approach to project planning and execution, thereby improving clarity and tracking.