A talk about 'Job-to-be-done' thinking, developed by Clay Christensen, author of “The Innovator's Dilemma”.
Job stories were developed by intercom: http://insideintercom.io/the-dribbblisation-of-design/
and expanded on by Alan Klement:
http://alanklement.blogspot.com/2013/09/replacing-user-story-with-job-story.html