Timelines: Usability and Instructional Technology

A few people already linked to Timelines: Usability and Instructional Technology, but I wanted to save it for later. I've occasionally talked about the necessary convergence between instructional design and user experience design, and this chart is a step in that direction. In a way, it could be two separate charts, because there's been very little overlap between the fields. But I think the author is combining them intentionally to show the potential for instructional design to learn something from the history of software usability and the new user-experience methodologies.