Human-Computer Interaction: Ergonomics and User Interfaces - Vol. 1

By Hans-Jörg Bullinger; Jürgen Ziegler | Go to book overview
two sub-goals "search desirable programs" and "reserve to record the programs", and the relationship between the sub-goals is expressed with sequential notation, "<<". In the following UI function definition editor, UI functions, e.g. "change browsing scope", and UI parts, e.g. "EPG button" are extracted and defined in detail. In the situation organizer, various situations in use, el.g. "searching desirable programs", are defined in terms of a set of UI functions and UI parts, and those situations are visualized using GUI sketch editor or the other existing drawing tools such as paint brush and Visio.Figure 2 shows the storyboard editor, in which various types of scenarios are developed by using the produced GUI images. The example is an early partial flow which starts at "initial state" image, and transfers to "searching desirable programs" one.We evaluated the effectiveness of the proposed concepts and system, through the actually application examples, so it was the first step for the future full evaluation.For each analysis tasks based on the RA process model, the USE can support its users as follows: the users (analysts) can identify and decompose user goals per assumed user group, effectively extract essential functions from analysed goal/task hierarchies, and easily construct GUI images and stories through extracting situations where a set of UI functions can be provided.The "Makigami" style multi window display function can efficiently support user's management of many tools and files related complicatedly. The users can construct their work environment suitable for various contexts such as analytic situation, user preference and so on.The consistent UI using similar hierarchical expressions can provide the users with familiarity and efficiency because of operational manners like the Windows Explorer.
5
Conclusions
In this paper, we built the RA process model and proposed a support system USE to support the RA process systematically, totally and efficiently. We also applied it to practical domains and evaluated its usefulness.
6
Reference
Faulk, S. ( 1996). Software Requirements: A Tutorial. In Dorfman, M. & Thayer, R. H. (Eds.): Software Engineering, 82-103.

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