Collaboration is the combined efforts of various people in order to come up with an idea, evolve an idea or to create something. Collaboration is done in order to either get ideas to improve whatever is being worked on or to get the work done faster due to multiple people working several elements of the work. A majority of creative endeavors requires collaboration such as movies, TV shows or videogames, due to the many roles that need to be filled in the production of the work, though there can be some that can only require person such as literary works like novels or comics, which if the creator wants, can be done through traditional means or through a computer software.
In art, an example of collaboration on pieces would be the work of Baroque artist, Anthony van Dyck, who was credited as the main artist of his work and had painted his subjects’ faces and hands, but the rest of the painting such as clothes and backgrounds were done by his factory of assistants.
SOURCES:
Family portrait by Anthony van Dyck, Anthony van Dyck – Wikipedia