Ever since cruise lines first began building mock suites for passengers to try out before installing the rooms on ocean liners in the 1940s, businesses have been devising trial runs for a small number of consumers to test merchandise. Companies still make important changes based on this "usability testing" before taking their goods to the wider market, and researchers say that what works for cell phones and video games may work for human services.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/O...



Tendencias Científicas
La prevención del VIH no llega a las jóvenes sudafricanas

CIENCIA ON LINE