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《网站可用性设计中的个基础概念（ basic concepts in web usability design）》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。
1、网站可用性设计中的30个基础概念（30basicconceptsinWebUsabilityDesign）Youdon'thavetogetotherpeople'sapprovalineverything.AsaprofessionalWebdeveloper,youareadvocatesofyourvisitors'interestsandneeds;youmuststicktoyourunderstandingofgooduserexperience,toensurethatthecomplexatthesiteundertheframeworkofyourvisitorsmays
2、tillfindtheirway.Thismeansthatyoumustbeabletoholdyourgroundandcommunicateyourideaseffectivelywhendiscussingwithusersandcolleagues.Infact,yourjobistocompromiseanddealwithwrongideasandmisleadingconcepts,ratherthanfollowthemblindly.Thereisnothinginthissituationthatcanhelpyou,exceptfortheprofoundknowl
3、edgeassociatedwiththefundamentalissuesinyourwork.Butevenifyouknowtheknowledge,it'simportantthatyouknowhowtocallthemandhowtousetheminthediscussion.Inaddition,preparingtheexactterminologyyoumayneedasanargumentathandishelpfultoyourdiscussion.Inthisarticle,wepresent30importantusabilityissues,terminolo
4、gy,rules,andprinciplesthatareoftenforgotten,ignored,andmisunderstood.Whatisthedifferencebetweenreadability(readability)andreadability(legibility)?Whatexactlyaretheprinciplesof80/20andPareto?Whatdoes"minesweeping"and"satisfaction"mean?What'sthegradualreinforcementandgracefuldegradation?Youcanfindth
5、eanswer.I.availability:rulesandprinciples7+2PrincipleBecauseofthelimitedabilityofthehumanbraintoprocessinformation,itdividescomplexinformationintoblocksandsmallunits.AccordingtoGeorgeA.Miller(GeorgeA.Miller)research,short-termhumanmemorycanonlyremember5-9thingsatatime.Thisfactisoftenusedasanargume
6、nttolimitthenavigationmenuoptiontothe7;however,themagicof"7,plus2,orminus2"hasbeenaheateddiscussion.Therefore,itisunclearwhetherthe7+2principlecan,andmay,orshouldbeappliedtoweb.ThestudyofMiller.2secondprincipleAlooseprinciplethatusersdonothavetowaitformorethan2secondsforsomesystemresponse,suchasap
7、plicationconversionandthebeginningofresponsetime.Choosing2secondsisabitarbitrary,butit'sareasonableorderofmagnitude.Thereliableprincipleisthatthelesstheuserwaits,thebettertheuserexperience.[availabilitypriority]3
