Designing user interaction—How can agile system analysis help

In domain engineering, or traditional system analysis, users' cognitive abstractions of a device are ignored almost always. Many common devices often require that the user is a member of a class of people who always have enough time to play with the device. In this paper, it is demonstrated how system analysis with agility opens doors for incorporating cognitive modalities of users into the traditional approaches. When any interaction with a device by the user is abstracted with a set of agile operations, it focuses the user's semantic knowledge about the device. Actual procedural activities for using the device require logical knowledge. Compounding the semantic and the logical knowledge, the user develops systemic knowledge. This is the knowledge the agile system analyst will have to address, making the device often behaving like a dumb system, while the same device remains intelligent and smartly communicating to address different user classes.