Audience Segmentation: How does Optimizely handle the logical OR when evaluating Audiences?
If an Experiment has more than 1 Audience, Optimizely appears to apply a logical OR.
In other words, if the Experiment has several Audiences, the dialog proclaims:
"Visitors in any of these audiences will see the experiment"
In these situations, will Optimizely evaluate all 3 or stop on the first that matches?
The real reason behind the questions is in regard to Segmentation.
If one of the Audiences it set for Segmentation and a visitor is assigned because he meets a different Audience that happens to fall earlier in the list, will that visit still be recorded in the appropriate Segment?
Manager of Site Optimization
'The single biggest problem with communication is the illusion that it has taken place.' - George Bernard Shaw
So the difference between segmentation and audiences is that segmentation will evaluate for that particular audience for every visitor regardless of it its attached to an experiment. This way you can see in your results page how a particular segment (audience) performed in the experiment. Another thing to mention about segments is that they are persistent. Meaning if a visitor qualifies for an audience that has been added as a segment then it will always be true for them.
That being said if you use an audience that is a segment as part of a group of audiences for a particular experiment and the visitor has been included in the segment, then they will always be included in any experiment that segment / audience is included in.
As to your question about if the visit will still be recorded in the appropriate segment, the answer is yes. The reason is that the group of audiences has no effect on the segmentation. It only controls who gets into an experiment and who does not. The segment works independently of the other audiences,
However the audience feature itself only dictates if the visitor should get into an experiment.
Hope that helps!
So, like, if you have two audiences for an experiment
Users from anywhere in the world who use FireFox will be included in the experiment.
Users from the UK, regardless of browser, will be included in the experiment.
When viewing the results, you can break down performance by any and all segments (predefined and any custom segments that you have set up).