This is the generic name of the group of objects you want to track. In reference to the PDF download, the category title for this event can simply be “PDF Download.”
Action
Actions are always paired to a specific category and can speak to a more specific type of user interaction. Using our annual report PDF example, the action title for this event could be “Annual Report.”
Label
Attributing labels to events is optional, but recommended. Labels add another dimension with which to present the event data. In our example, the label would be specific to the actual PDF that is being downloaded. So, if it’s the January 2012 report, the label can be the actual file name of the downloaded file (i.e. 2012January-Annual-Report.pdf).
This is just one, very basic example of how you can use Event Tracking within Google Analytics. Event Tracking is a perfect way to determine trends of where your users are navigating. Over time, with a healthy practice of Google Analytics, these trends will translate into educated design changes on your site as well as recommendations for future events.
