Crowdsourcing is a process that involves outsourcing tasks to a distributed group of people. This process can occur both online and offline, and the difference between crowdsourcing and ordinary outsourcing is that a task or problem is outsourced to an undefined public rather than a specific body, such as paid employees.

Crowdsourcing is related to, but not the same as, human-based computation, which refers to the ways in which humans and computers can work together to solve problems. These two methods can be used together to accomplish tasks.

Crowdsourcing is a distributed problem-solving and production model. In the classic use of the term, problems are broadcast to an unknown group of solvers in the form of an open call for solutions. Users—also known as the crowd—submit solutions. Solutions are then owned by the entity that broadcast the problem in the first place—the crowdsourcer. The contributor of the solution is, in some cases, compensated either monetarily, with prizes, or with recognition. In other cases, the only rewards may be kudos or intellectual satisfaction. Crowdsourcing may produce solutions from amateurs or volunteers working in their spare time, or from experts or small businesses which were unknown to the initiating organization.

Peter Davison (born Peter M. G. Moffett on 13 April 1951) is a British actor, best known for his roles as Tristan Farnon in the television version of James Herriot's All Creatures Great and Small and the fifth incarnation of the Doctor in Doctor Who, which he played from 1982 to 1984.

Davison was born Peter Moffett in Streatham, London, son of an electrical engineer who was originally from Guyana. The family then moved to Knaphill in Surrey. Before becoming an actor, he gained three O-levels at Winston Churchill School, St John's, Woking, Surrey, and then had several odd jobs, including a stint as a mortuary attendant.

Davison studied at the Central School of Speech and Drama. His first job was as an actor and assistant stage manager at the Nottingham Playhouse. He chose the stage name Peter Davison to avoid confusion with the actor and director Peter Moffatt, with whom Davison later worked.

His first television work was in a 1975 episode of the children's science fiction television programme The Tomorrow People, alongside American actress Sandra Dickinson, whom he married on 26 December 1978. Davison portrayed an alien named "Elmer", often tortured with "tickling boots" under the control of his sister (played by Dickinson) and his mother (played by Margaret Burton) known as "the Mama".

Marco Villa (born February 8, 1969 in Abbiategrasso) is a road bicycle and track cyclist from Italy. He won the bronze medal in the men's Madison at the 2000 Summer Olympics in Sydney, Australia alongside Silvio Martinello. He is a professional rider since 1993.