This report presents a system analysis of the Australian Electric Supply (OZES), focusing on the implementation of a Management Information System (MIS) for managing business processes, particularly second-hand selling. The report begins with a consultation section discussing various system development methodologies, including Waterfall, Scrum, Unified Programming, and Extreme Programming, evaluating their advantages and disadvantages in the context of OZES's requirements. The analysis then delves into the OZES case, providing an event table, use case descriptions, and use case and class diagrams illustrating the system's functionalities, such as product ordering, customer management, and seller interactions. A memo to the executive analyst summarizes the implementation plan, emphasizing the use of a user-centric design approach for the Human Computer Interaction (HCI) system, planned for desktop, tablet, and mobile platforms. The report recommends the Scrum methodology for OZES, based on its ability to track records and maintain proper stock updates. The report includes diagrams to visualize the system's structure.