From the results of our field study, we determined that our task examples adequately reflected tasks that users presently perform. Thus, we did not change our task examples after the study. They are given below:
TE1: Naomi is an avid social media user. While on these sites, she frequently notices videos of how to make different types of food that catch her interest, and tries to make them once in awhile. Sometimes she takes notes on the steps involved, pausing and replaying the video frequently. She also sometimes has questions about one of the steps, but feels that there is no good way of getting those questions answered on the video. Instead, she will try to look for a similar recipe to resolve her confusion. Sometimes, if she has a mobile device, she will follow along with the video while she is cooking and she will pause and replay parts of the video while she is making the food. If she is confused about a step while following along, she usually ends up making her best guess.
TE2: Moritz frequents video sharing websites and often uses them to look up tutorial videos. He tries to follow these videos in real time, but finds himself pausing and backtracking while going through the video. Sometimes, when following these videos, he notices that some part of the tutorial does not work for him, but finds an alternative way to progress with the tutorial. He would like to share his method in the hope of potentially helping somebody with the same problem, but does not want to go through the effort of creating a new video. Currently, when this happens, he leaves a text comment on the video describing his method and suggestions. Sometimes the original uploader notices his comment and makes changes to the video.
TE3: Tom is a math teacher. Every now and then, he likes to suggest videos to his class that he finds online to show them an explanation of a problem and supplement their learning. He looks through several videos first, frequently on popular educational sites, and chooses one that he feels will best explain the concept. Sometimes, he will like most of the video, but will have some ideas to add. He usually ends up accepting the video’s content as is, but sometime sends the video with some his own extra notes to the students if he finds it necessary. Occasionally, he will also find some videos where he does not agree with the content, or finds an error. In this case, he will move on and choose not to share the video. When he has selected a video, he will send the video to his students.