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  3. Video recorders and photocopiers, even ticket machines on the railways, ofte

Video recorders and photocopiers, even ticket machines on the railways, ofte

游客2025-03-23  9
问题     Video recorders and photocopiers, even ticket machines on the railways, often seem unnecessarily difficult to use. Last December I bought myself a video cassette recorder (VCR) described as "simple to use". In the first three weeks I failed repeatedly to program the machine to record from the TV, and after months of practice I still made mistakes. I am not alone. According to a survey last year by Ferguson, the British manufacturer, more than one in four VCR owners never use the timer (定时器) on their machines to record a programme: they don’t use it because they’ve found it far too hard to operate.
    So why do manufacturers keep on designing and producing VCRS that are awkward to use if the problems are so obvious? First, the problems we notice are not obvious to technically minded (有技术思想的) designers with years of experience and trained to understand how appliances work. Secondly, designers tend to add one or two features at a time to each model, whereas you or I face all a machine’s features at once. Thirdly, although finding problems in a finished product is easy, it is too late by then to do anything about the design. Finally, if manufacturers can get away with selling products that are difficult to use, it is not worth the effort of any one of them to make improvements.
    Some manufacturers say they concentrate on providing a wide range of features rather than on making the machines easy to use. But that gives rise to the question, "Why can’t you have features that are easy to use?" The answer is you can.
    Good design practice is a mixture of specific procedures and general principles. For a start, designers should build an original model of the machine and try it out on typical members of the public—not on colleagues in the development laboratory. Simple public trials would quickly reveal many design mistakes. In an ideal world, there would be some ways of controlling quality such as that the VCR must be redesigned repeatedly until, say, 90 percent of users can work 90 percent of the features correctly 90 percent of the time. [br] One of the reasons why VCRs are so difficult to use is that______.
选项 A、the designers are often insensitive to the operational complexities of their machines
B、the range of features provided is unlimited
C、there is no ideal way of controlling quality
D、their designers often ignore the complaints of their users
答案 A
解析 本题问卡式录放机使用起来非常难的一个原因是什么。根据文章第二段第二句话我们可以推知，设计者并不了解他们所设计的产品会给用户带来困难，因为在用户看来很复杂的功能在他们看来却十分容易，而等他们发现问题的时候，产品已经定型。因此，本题的正确答案应是选择项A“设计者通常对他们设计的机器在操作方面的复杂性并不敏感”。
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