Hierarchy

A hierarchy is an arrangement of objects, people, elements, values, grades, orders, classes, etc., in a ranked or graduated series. This goes to the structure of the team organization and collaboration. A hierarchical organization usually structured in a way such that every entity in the organization, except one, is subordinate to a single other entity. This is the dominant mode of organization among large organizations; most corporations, companies, governments, and organized religions are hierarchical organizations. Hierarchies denote a singular/group of power at the top, a number of assistants underneath and hundreds of servants beneath them.

For our collaboration team, we kind of used two different team structure. one is one leader leads four members, for organizing and decision making which leader can make the decisions after team discussion, to avoid conflicts gets further. another team structure is all members are equal when each of us have assigned works, we work equally while sharing experiences and knowledges.

Reference:

http://en.wikipedia.org/wiki/hierarchy