Neck and shoulder symptoms among men in machine operating, dynamic physical work and sedentary work : Tola, S., Riihimaki, H., Videman, T., Viikari-Juntura, E., and Hanninen, K.Scan J Work, Environment and Health, 1988, 14.5, 299–305, 12 refs.
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 136 KB
- Volume
- 20
- Category
- Article
- ISSN
- 0003-6870
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✦ Synopsis
visual keyboard for a physically disabled person. A visual keyboard replaces the standard keyboard with a graphic representation on a computer display as an alternative computer access system. The expert system guides a clinician through a proposed multi-layered design process comprising five layers: task analysis, conceptual design, semantic design, syntactic design, and lexical design. A sixth component, pragmatic considerations, straddles all layers. A unique feature is the allowance for a clinician to use imprecise clinical descriptions. This is supported by a suggested dual inference enginepattern matching when facts can be precisely matched with some rule(s), and fuzzy inferencing when the variables have imprecise descriptors.