POEMS framework helps tag video & image observations of user interactions.
The tags are criteria in five categories:
The POEMS framework is not limited to solely being linear in time. Therefore, it is able to cross domains easier and sit as a piece in in a larger research framework.
Source: Kumar, V. & Whitney, P. (2003). Faster, Cheaper, Deeper User Research. Design Management Journal, Spring 2003, 50-57. Design Management Institute.