Macrotasks

= a form of Crowdsourcing, similar to Microtasks, however, workers can see more, if not all, of the project and can get involved with any portions they are knowledgeable in. This form is most common with solving complex problems such as the X-Prize or seeking out a better recommendation algorithm for Netflix.

(http://www.businessesgrow.com/2011/08/31/the-top-five-crowdsourcing-mega-trends/)