The Difference Between Formal and Informal

          In today's workplace teams are usually considered to be formal or informal. A formal team is structured and created for a specific purpose. It will consist of a leader or co-leaders; depending on what the team is created for. A formal team will also have specific roles for each member of the group. An example of a formal team would be the JHSC, which could consist of a chairman, minute taker, secretary, etc. Where as, an informal team has no structure and everyone is of equal status. There is no role assigned to each team member. An example of an informal team could be co-workers planning a dinner meeting or office party. 

Can you list other uses for formal or informal teams, whether in the workplace or outside?