GEOMA TICS WORLD : (2003) , ; 2. GIS Interoperability and OGC Specif ications. L I Xin - tong 1,2, HE Jian - bang 1

Transcription

1 GEOMA TICS WORLD VOL. 01 NO. 5 Oct., 2003 : K9, G307 :A : (2003) GIS OGC 1,2 1, (1., ; 2., ) : GIS GIS ; (O GC) ; : ; ; GIS Interoperability and OGC Specif ications L I Xin - tong 1,2, HE Jian - bang 1 ( 1. State Key Laboratory of Resources and Environment Information System, Institute of Geographic Science and Natural Resource Research, Beijing , China ; 2. Institute of Geographic Science, Fujian Normal University, Fuzhou , China) Abstract :GIS interoperability is vital to share geodata and geoprocessing services, establishing interoperability via standards and specifications have become the principles for addressing interoperable GIS within distributed computing environment. This paper describes fundamental characteristics and the challenge of GIS interoperability, and its standardization require2 ments, which focusing on the O GC approach to interoperability, the open geodata interoperability specifications, including abstraction and implementation specification, abstraction specification topic dependencies, specifications that have been ap2 proved so far and their roadmap, process and procedure. The paper also gives the titles of O GC discussion paper and recom2 mendation paper, presents the future interoperability specification finally. Key words :interoperability ; geodata and services ; Open GIS Consortium Inc. (O GC) ; Specification 0 20 GIS, GIS,,, GIS GIS, GIS GIS, GIS,, [1 ] : : - (2001BA608B ) ; (kzcx ),863 : (2002aa )

2 GIS GIS, GIS,,, GIS, GIS, 1,,,,, GIS GIS 1. 1 GIS GIS, [2 ] GIS, GIS, : GIS [3 ; ] GIS, GIS,, GIS ; (XML) Internet/ Intranet ( GML) ; 1. 2 GIS, ( ISO TC211) ( Open GIS Consor2, tium Inc.,O GC ) (W3C) Web ( Web Services Interoperability Organiza2 : 1) GIS, O GC ( ) Open Geodata Interoperability Specificatioin,, (Open GIS) 2 OGC 2) GIS, 2. 1 GIS ;,, O GC 1994 GIS 3) GIS ( ),, O GC, 4) GIS, 1. 3 GIS ( SOAP), tion,ws - I)

3 5 : / 25, / 2 O GC O GIS O GC O GC, ( Interoperability Program, IP),, O GIS, 2. 2 O GC O GC O GC, ;, 1 1 OGC Fig. 1 Viewpoints and abstraction level of OGC interoperability specification 2 GIS Fig. 2 Inter operabile GIS, 3 OGC ; Open GIS [4 ],, (DCP), Microsoft OL E/ 3. 1 O GC COM (OM G) CORBA [5 O GC 17 ], O GC (testbed) 3, : (Overview) 2. 3 O GC Open GIS, Open GIS (Application, GIS Programming Interface,API) GIS,

4 O GC (Open Services Model,OSM), Open GIS [6 ] Open GIS 3 : ( Information Communities Model,ICM), (Open Geo - data Model, O GM), 3 Open GIS Fig. 3 Open GIS topics and their dependencies OM G ( Feature), 3. 3 O GC O GC, 4, ( Request for infor2, mation, RFI) ( Request for quotation, RFQ) (O GC OSM ), [9,, ] ICM, O GC ;, ( Request for comment, 3. 2 O GC RFC) O GC O GC,, O GC [7 ] OL E/ COM CORBA SQL,, O GC,, O GC, O GC [8 ], O GC 4 OGC O GC O GC , 17 12

5 5 : / 27,O GC, ; O GC, 6 O GC 4 OGC Fig. 4 The processes and procedures of OGC specif ication 5 OGC Fig. 5 The road map of OGC interopeability specif iaction O GC 3 O GC 27, 1 2, 1 O GC Tab. 1 The recommendation paper of O GC specifications Open GIS(r) 1 XML

6 O GC Tab. 2 The discussion paper of O GC specifications Open GIS(r) 1 : r1 2 : : r1 4 - XML r8 5 : r1 6-1 : r1 7 Web r2 Enablement 8 (SIM) Open GIS(r) Web Web Open GIS(r) Web UDDI( ) Open GIS(r) Web SOAP( ) Open GIS(r) Web (SMS) O GC (SensorML) r4p 17 Web XML r r3 19 Web :XML HTTP POST r1 20 Open GIS(r) Web ( WTS) r1 24 Web r1 www r1 www 26 XML www r1 5 Open GIS GIS,, GIS O GC,, O GC O GC : [1 ],. GIS [ EB/ OL ]. http :/ / www. spatialdata. org/ xzdc. htm [2 ] ISO/ TC211. ISO/ DIS Geographic Information - Services [ EB/ OL ] http :/ / www. statkart. no/ isotc211. [ 3 ],,. GIS [J ]., 2000,19 (1) : [ 4 ] John D. Evans. A Geospatial Interoperability Reference Model ( G. I. R. M. ) Version 1. 0 [ EB/ OL ] http :/ / gai. fgdc. gov/ girm/ v1. 0/ [5 ] Open GIS Consortium. The Open GIS (tm) Abstract Specification, Topic 0 : Abstract Specification Overview Version 4 [ EB/ OL ] http :/ / www. opengis. org/ techno/ specs. html [6 ] The O GC Technical Committee. 1998, The Open GIS??? Intro2 duction to Interoperable Geoprocessing and the OpenGIS Specifica2 tion ( 3rd edition) [ EB/ OL ]. guide/ guide980615/. http :/ / www. opengis. org/ techno/ [7 ] Open GIS Consortium. Open GIS Implementation Specifications [ EB/ OL ]. http :/ / www. opengis. org/ techno/ implementation. htm [ 8 ] http :/ / www. opengis. org/ testing/ products/ index. htm [9 ] Open GIS Consortium. The O GC Interoperability Standard Oper2 ating Program Policies Processes and Procedures ( IP SOP3) Version 1[ EB/ OL ] http :/ / www. opengis. org/ docs/ pdf [ 10 ] http :/ / www. opengis. org/ info/ discussion. htm : ( ),,,, ( ),,