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Michael Inderrieden

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Publications by Michael Inderrieden (bibliography)

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1995
 
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Wilson, Karen S., Inderrieden, Michael and Liu, Steven (1995): A Comparison of Five User Interface Devices Designed for Point-of-Sale in the Retail Industry. In: Proceedings of the Human Factors and Ergonomics Society 39th Annual Meeting 1995. pp. 273-277.

Although human performance on keyboards, pointing devices, and touch screens in the desktop environment has been studied and reported to the extent that the results can be used to determine productivity rates from those devices, little research has been conducted on devices used in controlled environments, like that of point-of-sale in the retail industry. While previous devices available for user interaction in this environment have been 2x20 displays and industry specific keyboards, current technology has moved the industry to implement CRTs, LCDs, full keyboards, touch screens and uniquely designed devices like the NCR DynaKey, an integrated LCD, keypad and dynamically assignable function keys. A full understanding of human performance on these devices was required to aid retailers in cost justifying their investment in them. Laboratory research was conducted to compare performance of basic point-of-sale tasks on a CRT with 56-key keyboard, 3 versions of an LCD touch screen, and the NCR DynaKey. Participants performed keying tasks, item modification tasks, a combination of item modification and scanning, and the same combination of item modification and scanning with a secondary monitoring task imposed. Time and error rates showed significant differences among the user interface devices for each of the task requirements in this research. Overall, mechanically keyed numeric entry was superior to touch screen numeric entry, mechanical keys were more advantageous with increased skill levels, and the integration of input mechanism and display as well as direct mapping between input and display enhanced performance.

© All rights reserved Wilson et al. and/or Human Factors Society

1991
 
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Henneman, Richard L., Inderrieden, Michael and Benson, Charlene (1991): Model-Based Interface Design for Transaction-Processing Tasks. In: Proceedings of the Human Factors Society 35th Annual Meeting 1991. pp. 421-424.

Characteristics of transaction-processing tasks are described in the context of retail point-of-sale systems (cash registers). Proliferation of functionality coupled with a lack of emphasis on interface design have led to systems that require extensive training and result in high error rates. A state-action representation of a transaction-processing task is described. This approach to task modeling is appropriate given the deterministic nature of transaction-processing tasks. To illustrate this approach, a task model for a particular retail point-of-sale system and an interface design based on this model are described. A preliminary analysis of subjects using the new interface suggests that the model-based design will result in significant reductions in training time and error rates.

© All rights reserved Henneman et al. and/or Human Factors Society

1990
 
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Henneman, Richard L., Inderrieden, Michael, Anderson, Andy and Taylor, Brett (1990): Evolutionary Design of a Customer Activated Terminal: A Case Study. In: D., Woods, and E., Roth, (eds.) Proceedings of the Human Factors Society 34th Annual Meeting 1990, Santa Monica, USA. pp. 300-304.

The process of designing a customer activated terminal (CAT) is described. A CAT is a self-service computer system that enables people to order food or merchandise, request information, complete banking transactions, etc. The specific application that this paper considers is a quick service restaurant lunch menu. Designers of CATs must assume that many users of such systems have no prior computer experience. One of the goals of this paper is to identify some specific interface design principles that seem to be appropriate for other CAT applications. A second goal is to illustrate how an iterative design process that focuses on user, task, and environmental characteristics can result in a successful product. The paper describes a four phase iterative development approach: data collection, initial design, testing and redesign, and implementation. Activities in each phase emphasize understanding user, task, and environmental characteristics. Several examples of the interface design at various stages of development are presented, and reasons for why design features were altered are discussed. The paper concludes by articulating several principles that apply to the design of CATs.

© All rights reserved Henneman et al. and/or Human Factors Society

 
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Changes to this page (author)

26 Jun 2007: Modified
26 Jun 2007: Modified
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URL: http://www.interaction-design.org/references/authors/michael_inderrieden.html
Jun 19

... there are no simple 'right' answers for most web design questions (at least not for the important ones). What works is good, integrated design that fills a need--carefully thought out, well executed, and tested.

-- Steve Krug, Don't Make Me Think, p. 136

 
 

Featured chapter

Read the fascinating history of Wearable Computing, told by its father, Steve Mann

Read Steve's chapter !

 
 

Latest books

The Social Design of Technical Systems: Building technologies for communities
by Brian Whitworth and Adnan Ahmad

 
Start reading

The Encyclopedia of Human-Computer Interaction, 2nd Ed.
by Mads Soegaard and Rikke Friis Dam

 
Start reading
 
 

Help us help you!