The phrase "action center" refers to a place or system where important activities, tasks, or notifications are shown or managed. It is a central location to access and take action on various things you need to do or be aware of. Full definition
You can put your views on the new action center in the comments below. (windowslatest.com)
Even through these channels I only got good feedback, and most of my development actions centered around expanding existing competencies, which were merely improvements of the good work I was already doing. (careerdigital.com)
The image below shows how a typical action center looks like. (thewindowsclub.com)