Overview
Structureddata,alsocalledrowdata,isdatathatislogicallyexpressedandrealizedbyatwo-dimensionaltablestructure.Itstrictlyfollowsthedataformatandlengthspecifications,mainlythroughrelationaldata.Thedatabaseisstoredandmanaged.Theoppositeofstructureddataisunstructureddatathatisnotsuitabletoberepresentedbytwo-dimensionaldatabasetables,includingofficedocumentsinallformats,XML,HTML,variousreports,pictures,audio,andvideoinformation.Databasesthatsupportunstructureddatausemulti-valuefields,fields,andvariable-lengthfieldmechanismstocreateandmanagedataitems,whicharewidelyusedinfull-textretrievalandvariousmultimediainformationprocessingfields.
Role
Structureddatamarkupisawaytoallowawebsitetobedisplayedinsearchresultsinabettermanner.Withstructureddatamarkup,thewebsitecandisplayrichsnippetsinsearchresults.
Searchenginesallsupportstandardstructureddatatagsinordertoprovideuserswithabetteronlineexperience.Microdatatagsinwebpagescanhelpsearchenginesunderstandtheinformationonwebpages,andmakeiteasierforsearchenginestoidentifycategoriesanddeterminerelevance.
Atthesametime,structuredmicrodataallowssearchenginestoprovidearichersummaryofsearchresults,whichistoprovidedetailedinformationtohelpuserswithspecificqueries,sothatuserscandirectlyseetheimportanceofyourproductsinsearchresultsinformation.Forexample:theproductprice,name,inventorystatus(whethertheproductisinstock),reviewerratingsandcomments,etc.canallbeseendirectlyinthesearchresultsummary.
Theserichwebsnippetscanhelpusersunderstandwhetherthewebsiteisrelevanttotheirsearchcontent,andcanmakewebpagesgetmoreclicks.
Forexample,inthesearchresults,somefactorssuchasmorestarratings,numberofreviews,andpricesaredisplayed,whichwillundoubtedlyincreasetheprofessionalismofthewebsiteandincreasethecustomer’strustinthewebsite.Thegoodvisibilityofthewebsitevirtuallyincreasestheclick-throughrateandconversionrateofthewebsite.
Markingmethod
1.HTMLcodemarkup
TherearethreemainwaysofHTMLcodemarkup:microdata,microformatandRDFa.However,forsomeforeigntradestations,themarkupisbasedonmicrodata,andmicroformatsaresometimesused,dependingonthetypeofpagesthatarenotused.
2.Usemicrodatamarkup
Ifyouusemicrodatamarkup,therearetwocodeformats:http://data-vocabulary.org/andhttp://schema.org/.Sincethedata-vocabularytagonlysupportsGooglesearch,andtheschemasupportsGoogle,Yahoo,Bingandothersearchesatthesametime,wemightaswellcalldata-vocabularytheoldversionofthetag,andtheschemaasthenewversionofthetag.
Themainstreamistouseschemaformarking.However,duetosomeitemsonthepage(suchasbreadcrumbnavigation),theschemadoesnotintroducethecorrespondingmarkupcode,soyoumuststillusedata-vocabularytomarkup.Inthiscase,thenewandoldcodewillcoexistonthepagecode,butthisDoesnotpreventsearchenginespidersfromcrawlingthepagecontent.
Ifyouusethedatataggingtool,youcandosimplecontenttagging.Supports9typesoftags:articles,bookreviews,events,localbusinesses,movies,products,restaurants,softwareapplications,andTVsequels.Duringtheoperation,youcancreateapagesetbyyourself,markthattypeofpage,andthenGooglewillcrawlthecontentoftherelatedpageofthattype,andyoucanreviewandmodifyit.Ifthereisnoproblemafterthemodification,clickOKtocreateit.