In a workplace environment, how do formal groups differ from informal groups in terms of social identity and membership roles?

In a workplace, formal groups are created by the organization to achieve specific tasks or goals, like a project team or a department. Members of formal groups usually have defined roles, such as a manager, team leader, or assistant, which helps everyone understand their responsibilities. In contrast, informal groups form naturally among employees based on personal relationships, shared interests, or social interactions, like a lunch group or friends who chat during breaks. These informal groups provide social support and can enhance job satisfaction but do not have official recognition or specific roles. For example, while a marketing team has clear objectives and assigned tasks, a group of coworkers who bond over a hobby creates a relaxed space where they can share ideas and enjoy each other's company without any formal structure.