ABTESTING
A/B testing
A/B testing is a buzz word in online advertising used to describe simple randomized experiments with two variants, A and B, which are the control and treatment in the controlled experiment. Such experimental techniques are commonly applied in web development and marketing, as well as in more traditional forms of advertising. Other names include randomized controlled experiments, online controlled experiments, and split testing. In online settings, such as web design, the goal is to identify changes to web pages that increase or maximize an outcome of interest .The above text is a snippet from Wikipedia: A/B testing
and as such is available under the Creative Commons Attribution/Share-Alike License.