Using the decision ladder to reach a better design

As with all safely critical interfaces, it’s imperative that medical devices communicate the right information, to the right people, at the right time, in the right place, and in an optimal format. This paper describes an... [ view full abstract ]

As with all safely critical interfaces, it’s imperative that medical devices communicate the right information, to the right people, at the right time, in the right place, and in an optimal format. This paper describes an approach for eliciting information requirements based on Rasmussen’s decision ladder. A hypothetical example of radiography equipment is used to illustrate the process; however, the approach is also considered to be applicable to a wide range of domains. The approach is based on a semi-structured interview and creates an explicit link between the data collection activity and the final design interface.