A group of people with complementary skills and expertise who work together to accomplish specified objectives. A team establishes and maintains a process that identifies roles, responsibilities, and interfaces; is sufficiently precise to enable the team to measure, manage, and improve their work performance; and enables the team to make and defend their commitments. Collectively, team members provide skills and advocacy appropriate to all aspects of their work (e.g., for the different phases of a work product’s life) and are responsible for accomplishing the specified objectives. Not every project or work group member must belong to a team (e.g., a person staffed to accomplish a task that is largely self-contained). Thus, a large project or work group can consist of many teams as well as project staff not belonging to any team. A smaller project or work group can consist of only a single team (or a single individual).