A team is a group of people but every group is not a team. It is different from a group in the sense that it is usually small and exists for relatively long period of time till the objective for which it is formed is accomplished. It must, ideally, consist of members who possess multifarious skills to efficiently handle various types of tasks.
Teams become components of a system, working toward the common goal of quality and process improvement. Many different types of teams exist in the business world. There are project teams, which may be called task forces or ad-hoc teams; cross-functional teams; self-directed or autonomous teams; and virtual teams. Almost every business uses one form of team or another.