This report, part of the PPMP20012 Unit Portfolio for Week 5, explores the critical importance of selecting appropriate project management (PM) application systems for successful project realization. It addresses the significance of Project Management Information Systems (PMIS) as essential components for decision-making, drawing on readings from SEBoK, Kerzner, AS/NZS 15288, and Raymond & Bergeron. The report examines various application systems such as those offered by SAP, Oracle, IBM, and Microsoft, and their impact on meeting project objectives. It also considers the flow of information, risk management, and the application of PMIS in real-world scenarios, including a reflection on the BP case and the insights gained from the course materials and personal experiences. The report highlights the benefits of PMIS in terms of risk analysis, cost and time management, and the development of future projects, emphasizing the need for effective communication and strategic information flow within organizations. The report also contains references to the readings and web sites provided in the assignment brief.