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

By Hans-Jörg Bullinger; Jürgen Ziegler | Go to book overview

performance after having investigated the cohtextual conditions of user's task performance.

With the aid of further usability standards ( ISO 9241, Parts 13-17)), the analyst can suggest user interface attributes serving as minimum design proposals to amend the list of performance requirements, Of course, the designer may feel free to create a design solution above the recommended minimum level. Nevertheless, all partners involved in the early analysis and design stage can be satisfied with an early test of the requirements for compliance with the required minimum quality of human-computer interaction represented by the standard.


Conclusion

This paper wants to show that opposite to many quality assurance standards (e.g. ISO 9000-3 [ 1991], ISO 13407 [ 1999]) the validation of usability requirements can be done prior to verification and very early in the development process. Scenarios are an effective means for supporting this strategy. They allow the domain expert (user) to really participate in the development of requirements and their validation, and they enable the analyst to better understand the problem domain.


References

Carroll, J. M. ( 1994). "Making use a design representation". Communications of the ACM, 37/12, 29-35.

Carroll, J. M. (Ed.) ( 1995). Scenario-Based Design: Envisioning Work and Technology in System Development. New York: John Wiley.

Dzida, W. and Freitag, R. ( 1998). "Making use of scenarios for validating analysis and design". IEEE Transactions on Software Engineering, vol. 24, no 12, 1182-1196.

ISO 8402 ( 1994). "Quality management and quality assurance - Vocabulary".

ISO 9000-3 ( 1991). "Quality management and quality assurance standards. Part 3": Guidelines for the application of ISO 9001 to the development, supply and maintenance of software.

ISO 9241-2 ( 1995). "Ergonomic requirements for office work with visual display terminals (VDTs) - Part 10": Guidance on task requirements.

ISO 9241-10 ( 1995). "Ergonomic requirements for office work with visual display terminals (VDTs)" - Part 10: Dialogue principles.

ISO 9241-11 ( 1998). "Ergonomic requirements for office work with visual display terminals (VDTs)" - Part 11: Guidance on usability.

ISO 13407 ( 1999). "Human-centred design processes for interactive systems".

Weidenhaupt, K., Pohl, K., Jarke, M., and Haumer. P. ( 1998). "Scenarios in system development: Current practice". IEEE Software, March/April, 34-45.

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