This report provides an in-depth analysis of organizational behavior, focusing on teamwork, leadership, and conflict management within a group assignment context. The report begins by examining the five-stage model of group development (forming, storming, norming, performing, and adjourning) and how the team members experienced each stage while developing a performance measurement system. It then explores the characteristics of effective teams, including informal atmospheres, member participation, and freedom of expression. The report also discusses the conflicts faced by the team and the compromising strategy used to resolve them. Furthermore, it delves into the trait theory of leadership, highlighting the leadership skills exhibited by team members and their impact on conflict resolution and overall assignment success. The report concludes with reflections on the team's experience, lessons learned, and suggestions for improvement, emphasizing the importance of teamwork, leadership, and conflict management in achieving project goals.