Human-computer interface

Figure 4.8 shows a specific example of this type of diagram which includes some symbols. The diagram shows the tasks that the operator and the computer must perform in a computer controlled reactor. The central column is used to show any functional requirements of the human-computer interface. 

They can be used for solving resource allocation problems, looking at aspects of time-stress, and designing the human computer interface. 

Luarel B, ed. The Art of Human-Computer Interface Design. Reading, MA Addison-Wesley, 1990. 

Carroll, J.M., Kellog, W.A., Rosson, M.B. The task-artifact cycle. In Car-roll, J.M. (ed.) Designing Interaction Psychology at the Human-Computer Interface, pp. 74-102. Cambridge University Press, Cambridge (1999)... 

Ravden and Johnson (1989) evaluate usabihty of human computer interfaces. They identify nine top-level attributes visual clarity, consistency, compatibility, informative feedback, explicitness, appropriate functionality, flexibility and control, error prevention and correction, and user guidance and support. They disaggregate each into a number of more measurable attributes. These attributes can be used as part of a standard multiple-attribute evaluation. 

Ravden, S., and Johnson, G. (1989), Evaluating Usability of Human-Computer Interfaces A Practical Method, John Wiley Sons, Chichester. 

Furthermore, based on the information provided by elements 4 and 5 of the functional model, the main features of the human-machine interface cem also be specified, ensuring compatibility with operators competencies. The way task s objects should be represented by the system, the type of man-machine dialogues to be used, the procedures to be proposed, and generic or customizable elements of the system are examples of human-computer interface features that can be specified using the acquired data. 

Qose cooperation among ergonomics specialists, information technology specialists, and sttike-holders in the design project is required in order to examine what system functions should be supported by available information technology, what features of the human-computer interface should be realized, and what functions should be given priority. 

Computer interfaces are the means by which users provide instructions to the computer. There are a wide variety of devices for interfacing, including keyboards, mice, trackballs, joy sticks, touch panels, light pens, pointers, tablets, and hand gloves. Any mechanical or electronic device that can be tied to a human motion can serve as a computer interface. The most common interfaces in use today are the keyboard and the mouse. The keyboard will be used as an example to illustrate how to achieve proper human-computer interfaces. 

Brown, C. M. L. (1988), Human-Computer Interface Design Guidelines, Ablex, Norwood, NJ. 

Eoley and SUbert (1989) define a human-computer interface as the determination of all user inputs into a computer, the determination of all computer outputs to the user, and the determination of sequences of inputs/outputs made accessible to the user. 

The principal technical challenge in the design of interactive VE systems is in the development of human-computer interfaces, which make it possible to convert intemd data structures into sensory-perceptible representations that possess consistent and (for the user) understandable behavior. In the same way, development of devices that translate human movements into computer commands. 

Action-decision diagrams, 1376, 1378 Actions (human-computer interface design), 1213... 

Metaknowledge, 223, 1775 Metal, designing for, 1316-1323 basic processes, 1317-1320 liquid state, 1316-1317 secondary processes, 1320-1323 solid state, 1317-1319 Metallurgical industry, 518 Metaphors, in human-computer interface design, 1213-1214 Method of Umits, 1048... 

Maxwell, K.M. 1995. Human-computer interface design issues. In J.D. Bronzino (Ed.), The Biomedical Engineering Handbook, pp. 2263-2277. Boca Raton, FL, CRC Press. 

Quality requirements. These may be classified into the following categories reliability (availability, integrity, security, safety, etc.), accuracy of results, performance, human-computer interface issues. 

Human-Computer Interface user-friendly software i nterface ... 

Human-computer interface G-H Human-computer interface G-H... 

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