
…uccess or failure in the goals actually manifest itself in user behavior or attitudes? For example, an engagement signal for YouTube might be the number of videos users watch on the site — but an even better one might be the amount of time they spend watching those videos. A failure signal in the “Task Success” category for YouTube Search might be entering a query but no…
…e goals of a project, and this is where the HEART categories are particularly useful in discussion. At YouTube, for example, one of our most important goals is in the engagement category: we want our users to enjoy the videos they watch, and keep discovering more videos and channels they want to watch. You might have different goals for a particular project or feature than for the product as a whole.…
A common pitfall is to define your goals in terms of your existing metrics — “well, our goal is to increase traffic to our site.” Yes, everyone wants to do that, but how will user-experience improvements help? Are you interested in increasing the engagement of existing users or in attracting new users?