:20020615:(1961),,1984,,10(,266071),;;G202B1008-0821(2002)09-0122-02,,,,,,,Internet,1,,,:111STEP;112;113Internet;114(CORBA),,Internet2211,STEP,EXPRESS,EXPRESS,212Internet,HTML,VRMLXMLSTEP213STEP,Internet,Java,CORBAEXPRESSIDL,IDL(Java)21311STEP,,STEP,,,:(API)2131111,2131112APISTEP,,,(:CORBA)2131113,,STEP(OD2BCJDBC),,/EXPRESS,,EXPRESS,,EXPRESS,EXPRESSSTEPSDAI(StandardDataAccessInterface,)21312Internet221920029No.9September12002©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.(STEP,IGESEXF),,Internet2131211(Plug2in/Add2in),,,,,,,2131212HTML/VRML,,HTML/VRMLInternet,,,2131213,EX2PRESS,VRML,Java,XML(Extensi2bleMarkupLanguage,),XML(VMML:VirtualManufacturingModelingLanguage)EXPRESS,XML,,,EXPRESS,Internet,VMML,,:VMMLSTEP,VMMLEXPRESS,STEPHTML/VRML,,VRML,,,,XML,STEP21313,,2131311,,ORB(ObjectRequestBroker,),,,,,,CAD,CAMFEM2131312Java,,:JavaCORBA,CORBA;Java,,CORBA,,CADViewer,CAM,,STEP,:,CORBAIDL(Java);EXPRESSIDL,EXPRESSIDLSTEPEXPRESSIDL,CORBA212IDLJava[1].[M].:,2001,9.[2].[J].,2000,21,(90:2123.(130),,,315,,,(),,;,,,,,,,,,[1].[J].,(105).[2].WTO[M].:,2000.[3].2110[J].,2001,(1).321920029No.9September12002©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.