sainiarchit
UV and visits are entirely different metrics.
Unique visitor can be used to identify the no of new visitors into your A4T activity, for the given period of time
However, visits would display the number of visits on the activity URL. So each visitor may have one or more visits to the activity URL.
From your example,
If there is a Z activity running on a X product page, and a visitor makes 2 visit on the website, 1 visit on the X product page and 1 visit when he did not visit the X product page. So in workspace, against Z activity, it will show 2 visits? or 1 visit?
Answer: It will show only 1 visit in the A4T activity, as there was only one visit to the activity URL.