This document provides a comprehensive solution to a BSBMGT517 Manage Operational Plan assignment, focusing on the case study of 'Designs by Us Pty Ltd,' a retail organization. The assignment addresses key aspects of operational planning, including the purpose of operational plans, models and methods, and organizational policies. It explores scenarios requiring adjustments to an existing operational plan, such as opening a third outlet, and outlines relevant legislative and regulatory contexts. The solution identifies source documents for researching staffing and production requirements, budgeting factors, and stakeholders for resource analysis. It also covers intellectual property considerations, stakeholder consultation methods, and the role of KPIs in operational planning. Furthermore, the document offers strategies for managing cost overruns and developing contingency plans, providing a thorough analysis of the operational planning process for the given scenario.