This portfolio assignment for PPMP20012 focuses on the crucial role of selecting appropriate project management (PM) application systems to ensure successful project realization. It emphasizes the importance of understanding the technical and managerial aspects of system engineering, including the application of generic life cycle models and the integration of stakeholder interests. The report highlights the distinction between system engineering management and project management, particularly concerning the application of software tools for decision-making. It references key resources such as SEBoK, Kerzner (2013), and ISO 21504:2015, emphasizing how the right selection of PM processes can reduce project costs and timelines. The assignment also considers the flow of information within project and portfolio management, discussing the need for careful strategy selection. The report includes references to relevant research that supports the analysis of PM application systems, making it a valuable resource for students studying project management.