基于XML的产品信息集成关键技术研究

14220022JOURNALOFCOMPUTER2AIDEDDESIGN&COMPUTERGRAPHICSVol.14,No.2Feb.,2002XML(100084)XML.XML,XML,.,XML,TP166;TP391ResearchontheKeyTechnologyintheIntegrationofProductInformationBasedonXMLGouLingyiXiongGuanglengXieJinchongChaiXudong(DepartmentofAutomation,TsinghuaUniversity,Beijing100084)AbstractTheflexibledatamodelandopenaccesscharacteristicsofXMLcanprovidepowerfulsupportfortheproductinformationintegration.ThispaperproposesanarchitectureforproductinformationintegrationbasedonXML.AimingatthekeytechnologymodelmappingbetweenXMLanddatabase,inconjunctionwiththecarproduct,solutionforthestructuremappingandintegrityconstraintmappingisproposed.Keywordsproductinformationintegration,XML,database:2000212213;:2001205211.985(081100601).,,1972,,.,,1936,,,CIMS.,,1967,,.,,1969,,.1,.,.985,,(ExtensibleMarkupLanguage,XML).XMLWeb,W3C(WorldWideWebConsortium)XML,XML,XML.2XML2.1.,:(1),(2)PDM,(3)STEP.,,,,.PDM©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,PDM,.,.STEP(AP),:STEP,,.,,STEP.,,STEP.,.,,STEP.2.2XML,XML.,:(1),,;(2),;(3),,.XMLSTEP,,.XMLSTEP:(1)XML,,STEP,;(2)XML,,,STEP.(3)XML,(CRM,SCM),XMLSTEP.XML,..985,,XML.FOM,FOM.XML,XML.3XML3.1XML,XML:;;;.,,,XML.1,XML:Web.3.2DTD,(A)(B)(C).:(I),;(II),.:(1)ABDTD;(2)ABDTD,XMLI,B;(3)BXMLI,;(4)B;(5)BCDTD,XMLII,C.2.6012002©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.4XMLXML,XML.XML,:.4.1XML4.1.14:.;;.,.,2.4.1.2XMLXML:XMLDTD.XML,:.;;,.XML.DTDXML,XML.XMLDTD,.DTDXML,XML.DTD,.DTD,:.XML,DTDXML.(1)[1]:ElementDecl=!ELEMENTSNameScontentspecS?ContentSpec=EMPTYûANYûMixedûchildren,.(2)[1]:AttlistDecl=!ATTLISTSNameAttDef3S?AttDef=SNameSAttTypeSDefaultDecl,,.4.24.2.1XMLXML,XML.(1)XML.XML:!doctypenameurlnametable1tablenöname,XML.,7012:XML©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,XML:!doctypenameö(2)XML..:namerecord1recordmöname,XML.,,XML:ö(3)XML..:namecolumn1columnmöname,,XML.,,XML:ö(4)XML..:nametype=tdöname,XML,.,2.6L,XML:type=t2.6Lö4.2.2DTD(1),.3:Step1.A,;Step2.,Bn;Step3.BnA2.(2),PCDATA.PCDATA.5:Step1.A,;Step2.,Bn;Step3.BnA2.Step4.PCDATA,Cn;Step5.CnA2.(3).(4)2:Step1.B;Step2.BA2.4.3.,,,.:.4.3.1(1),.,.,,.,:Step1..{A,B,,Z}.Step2...8012002©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.Step3..(int).Step4...Step5..BOM,,.(2)XML,(ISOöIEC9075:19926.1datatype).XML.DTD,.[2]:!ELEMENTAnyElement(#PCDATA)!ATTLISTAnyElementXML2SQLTYPE(CHARûVARCHARûINTEGERûDECIMALûFLOATûDATEûTIMEûTIMESTAMP)#IMPLIED!ATTLISTAnyElementXML2SQLMINCDATA#IMPLIEDXML2SQLMAXCDATA#IMPLIED,.(3),,DTD:!ATTLISTSEAT2ROWXML2SQLTYPECDATA#FIXEDINTEGERXML2SQLMINCDATA#FIXED1XML2SQLMAXCDATA#FIXED3!ELEMENTSEAT2LETTER(#PCDATA)!ATTLISTSEAT2LETTERXML2SQLTYPECDATA#FIXEDCHARXML2SQLSIZECDATA#FIXED1XML2SQLMINCDATA#FIXEDAXML2SQLMAXCDATA#FIXEDH,.SEAT2ROW,13.SEAT2LETTER,AH.4.3.2(1).,.(2)XML.XML.DTD,3:Step1.,.Step2.A,.Step3.,A.(3)(CAR),NUM.,CARNUM.XMLDTD:!ELEMENTCAR(CAR.NUMCAR.COST)!ATTLISTCARe2pkeyNMTOKEN#FIXEDCAR.NUM!ATTLISTCARpkey_idID#REQUIRED,.NUM,.4.3.3(1)..,.,.,.,.,.(2)XML2.XML.2DTD5:Step1.,A.Step2.A.Step3.,B.Step4.BBf,.Step5.BBr,BA.(3),.Step1Step24.3.2,Step3Step5:!ELEMENTREPORT(REPORT.NUMCAR.NUMREPORT.DATE)!ATTLISTREPORTe2fkeyNMTOKEN#FIXEDCAR.NUM9012:XML©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.!ATTLISTREPORTREPORT_CAR_idrefIDREF#RE2QUIRED,.(REPORT),.5,.XML.XML,XML,XML,XML.[1]TheWorldWideWebConsortium.TheXML1.0Recommen2dation(SecondEdition)[EDöOL].http:ööwww.w3.org,2000[2]LeeBuck.ModelingRelationalDatainXML[EDöOL].http:ööwww.extensibility.comötibcoöresourcesömodeling.htm,2000[3]XiongGuangleng,WuZuobao,XuGuangming.TheOrgani2zationandImplementationofCIMS[M].Beijing:TsinghuaUniversityPress,1996(inChinese)(,,.[M].:,1996)()VHDL100(:ASIC)200133.100,VHDL(ASIC).,ASICTalentVHDL()100,,VHDL.,,ASICVHDL.öASIC,VHDL(CADA)VHDL,.52(),(,100084,http:ööwww.tup.ts2inghua.edu.cn).0112002©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.