After deciding the logging method, you need to choose prompts. While it's tempting to say that you want everything relevant to the project logged, that's not a reasonable request. If you are doing a diary study, you can't expect the users to know about your research objectives, and guess what's relevant and what is not. Even for a field study, the prompts are vital in synchronizing the logging of multiple researchers or analysts. Prompts are what we use to prime the logging mindset. Remember that car buying can coexist with other mindsets, including the participation in a longitudinal research mindset.
Habit prompts are related to when and how often things happen, related to our research target. For example, telling ...
