锘??xml version="1.0" encoding="utf-8" standalone="yes"?>国产亚洲精品免费,亚洲va无码va在线va天堂,亚洲人成电影网站久久http://www.tkk7.com/canonical/category/4853.htmlzh-cnWed, 28 Feb 2007 14:07:57 GMTWed, 28 Feb 2007 14:07:57 GMT60Learning Barriershttp://www.tkk7.com/canonical/archive/2005/12/03/22371.htmlcanonicalcanonicalSat, 03 Dec 2005 13:49:00 GMThttp://www.tkk7.com/canonical/archive/2005/12/03/22371.htmlhttp://www.tkk7.com/canonical/comments/22371.htmlhttp://www.tkk7.com/canonical/archive/2005/12/03/22371.html#Feedback0http://www.tkk7.com/canonical/comments/commentRss/22371.htmlhttp://www.tkk7.com/canonical/services/trackbacks/22371.htmlhttp://www.cs.cmu.edu/~ajko/LearningBarriers.pdf
瀛︿範(fàn)鍦ㄤ紶緇熶笂琚涓烘槸浜虹被鐗規(guī)湁鐨勬椿鍔? 鎬庢牱闄嶄綆瀛︿範(fàn)鐨勯毦搴︿竴鐩存槸鐞嗚涓婇潪甯鎬護浜鴻糠鎯戠殑闂, 鍚屾椂瀹冧篃鏄漢綾繪墍闈復(fù)鐨勬渶澶х殑瀹為檯鍥伴毦涔嬩竴.
鍦ㄨ蔣浠剁殑涓栫晫涓? 鍏充簬瀛︿範(fàn)鐨勭爺絀朵篃鏄竴涓潪甯擱噸瑕佺殑棰嗗煙,
渚嬪鎵璋撶殑鍙敤鎬?usability)鍜岀敤鎴峰弸濂借璁?鍏舵牳蹇冮棶棰樺氨鏄浣曢檷浣庣敤鎴峰涔?fàn)鐨勯殤趾?
鎴戜滑鐩墠鐨勪簡瑙e鍗婃槸涓浜涚粡楠岀殑鎬葷粨,渚嬪Pane鎵鎬葷粨鐨?
. Use signaling to highlight important information.
. Support incremental testing and feedback.
. Choose an appropriate computational metaphor.
. Help detect, diagnose, and recover from errors.
. Provide guiding knowledge through online help.
. Support recognition rather than recall.
Andrew J. Ko絳変漢浣滀簡鏇村姞涓ヨ皚涓浜涚殑鐮旂┒, 璇曞浘瀵筁earning Barriers浣滃嚭涓涓熀鏈殑鍒嗙被(classification),
1. Design barriers: I don't know what I want the computer to do, 闇瑕乵apping a desired program behavior to an
abstract description of a solution.
2.
Selection barriers: I銆think I know what I want the computer to do, but
I don't know what to use, 闇瑕乵apping a behavior to appropriate search
terms for use in help or web search engines, and interpreting the
relevance of the results.
3. Coordination barriers : I think I know
what things to use, but I don't know how to make them work together,
闇瑕乵apping a desired behavior to a computational pattern that obeys
鈥渋nvisible rules."
4. Use barriers: I think I know what to use, but I don't know how to use it, 闇瑕乵apping a desired behavior to a
programming interface鈥檚 available parameters.
5.
Understatnding barriers: I thougtht I knew how to use this, but it
didn't do what I expected, 闇瑕乮nterpreting the external behavior of a
program to determine what it accomplished at runtime
6. Information
barriers: I think I know why it didn't do what I expected, but I don't
know how to check,闇瑕乵apping a hypothesis about a
program to the environment鈥檚 available tools, and interpreting the tool鈥檚 feedback.
鍏朵腑design, coordination鍜寀se鐨勯殰紕嶄綋鐜頒簡鎵璋撶殑gulf of execution(the difference
between users' intensions and the available actions),
understanding鐨勯殰紕嶅垯浣撶幇浜嗘墍璋撶殑gulf of evaluation(the effort of deciding if
expectation have been met), 鑰宻election鍜宨nformation鐨勯殰紕嶅垯鍚屾椂浣撶幇浜唃ulf of
execution鍜実ulf of evaluation.