This chapter introduces the concepts of Mechanical Turk, the business objects and mechanisms of the system, and when and why you would use them.
This chapter has the following sections:
A brief introduction to the elements of Mechanical Turk.
The actors in the system, user accounts, money and payments, the Mechanical Turk web site.
All about Human Intelligence Tasks (HITs), how your HITs appear to a Worker, and what kinds of questions Mechanical Turk can answer.
How HITs are organized in the system, and how to manage different kinds of work with one account.
How a Worker completes a HIT, how you retrieve the results, how assignments are managed, and how the Worker gets paid.
How Mechanical Turk helps you manage Workers to produce the highest quality results for your HITs.
How Mechanical Turk can communicate events about your HIT activity back to your application.