Its purpose is to establish a top-level work breakdown structure (WBS) to estimate the scope of the project. In SCRUM, the initial definition of the project’s scope occurs during the Pre-Game Planing phase, when the stakeholders can contribute to Product Backlog creation. In this case, the WBS is composed of the Product Backlog and the set of all pre-defined sprints, providing the necessary resources to estimate the project’s scope. Detailed estimates are carried out at the beginning of each sprint, in the second part of the Sprint Planning meeting. So, this practice is Satisfied