Group dynamics involves the interactions between group members as they work together toward a common goal. A group is defined as two or more individuals who join together to achieve what cannot be done alone. There are two types of groups - formal groups created by an organization to meet goals, and informal groups that develop naturally among members. Key aspects of group dynamics include forming, storming, norming, performing, and adjourning stages; developing cohesiveness through getting to know each other and setting rules; and how group task and productivity are influenced by the complexity of the task and avoiding obstacles to productivity. Synergy refers to a group achieving more than the sum of individual efforts, while process loss is the difference between actual and potential group output