Adobe Target is a tool that can be used to implement A/B and multivariate tests on websites and apps. The goal of these tests is to measure what variation of the content performs better, e.g. leads to better sales or a better customer experience.
Implementing a test is a rather simple process. Login to Target setup a new activity and enter the url of the page you want to test. Select the area where the test should be run and configure the logic behind it. Then, with the click of a button, the test can be activated on the live environment.