an encapsulation of a group of other objects that together provide a commonly useful graphical representation
an object built by aggregating other component objects
an object formed from component objects
an object that is conceptually composed of two, or more, other objects, which are externally discernable
an object that is made up of other objects
an object that might have to be treated as being owned by a particular object but can be pointed to by other objects in a normal way
an object that can have components; it is possible that a composite object can have zero components, exactly one component, or more than one component.