No coin nor oath required. For personal study only.
performance of library catalogues and indexes. The involvement of computers in the generation of catalogues has enabled people's performance to be studied with alternative catalogue displays. One of the critical factors is the number of entries which can be scanned per page, the more entries the shorter the search time. Another critical factor is the way keywords in a title are displayed in relation to the context both of the other words in the title and the other entries in the catalogue. It is shown that major improvements are possible to the visual display of the information on some of the catalogue systems currently in use. 17.1.25 (91024)
Computer interfaces
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total of 10 installations exhibiting a wide range of characteristics were evaluated by different types of office workers, performing typical tasks in a simulated four-person office. The participants' evaluations were recorded by questionnaire and the results are discussed. The general conclusion is
This study investigated the influence of handle characteristics on fatigue of the gripping muscles while doing a slicing task as in using a knife in cutting meat. Subjects actually cut cylinders of modelling clay as a simulated meat-cutting task. Immediately after completing the cutting task the tim