CCITT E.121 (11 1988) (英) Pictograms and symbols to assist……

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1、INTERNATIONALTELECOMMUNICATIONUNIONCCITTE.121THEINTERNATIONAL(11/1988)TELEGRAPHANDTELEPHONECONSULTATIVECOMMITTEESERIESE:OVERALLNETWORKOPERATION,TELEPHONESERVICE,SERVICEOPERATIONANDHUMANFACTORSOperation,numbering,routingandmobileservice–Internationaloperation–Generalprovisionsconcerningusers

2、PictogramsandsymbolstoassistusersofthetelephoneserviceReeditionofCCITTRecommendationE.121publishedintheBlueBook,FascicleII.2(1988)NOTES1CCITTRecommendationE.121waspublishedinFascicleII.2oftheBlueBook.ThisfileisanextractfromtheBlueBook.Whilethepresentationandlayoutofthetextmightbeslightlydif

3、ferentfromtheBlueBookversion,thecontentsofthefileareidenticaltotheBlueBookversionandcopyrightconditionsremainunchanged(seebelow).2InthisRecommendation,theexpression“Administration”isusedforconcisenesstoindicatebothatelecommunicationadministrationandarecognizedoperatingagency.©ITU1988,2007Al

4、lrightsreserved.Nopartofthispublicationmaybereproduced,byanymeanswhatsoever,withoutthepriorwrittenpermissionofITU.RecommendationE.121PICTOGRAMSANDSYMBOLSTOASSISTUSERSOFTHETELEPHONESERVICE1Generaldefinitionsandguidelines1.1Definitionspictogramsandsymbolsconveyinformationinpictorialform.Theya

5、rewidelyusedinthetelecommunicationfieldtodenotespecifictypesofequipmentandservicesandtoinstructpeopleintheuseofsuchequipmentandservices.Apictogramisasimplifiedpictorialrepresentation.Itiscommonlyusedtoguidepeopleandtellthepersonhowtoachieveacertaingoal.Itconsistsofmoreorlessrealisticelement

6、s.Pictogramsshouldbeself-explanatory.Asymbolisanabstractpictorialrepresentation;itcommonlystandsforsomethingandtellsapersonwhatheisfacedwith.Itisnotnecessarilyrealisticandoftenrequiresalearningprocessinordertobeunderstood.Thereisnotalwaysasharpdistinctionbetweenpictogramsandsymbols.Pictoria

7、lrepresentationscanbeplacedonacontinuumwithontheoneendrealisticpictogramswhichcanbereadilyunderstoodandontheotherendabstractsymbolswhicharedifficulttounderstandwithoutpriorlearning.1.2PictogramsandsymbolsasanalternativetowrittentextAdvantagesofpictograms