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Proceedings Paper

Asynchronous OGC web services mechanisms
Author(s): Min Min; Liping Di; Genong Yu; Nengcheng Chen; Jianya Gong
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Paper Abstract

The Open Geospatial Consortium, Inc (OGC) Web Services (OWS) were initially primarily simple synchronous Web services based on the HTTP transport protocol, which is perfectly valid in the case of simple geoprocessing of simple data available from local sources. However, with the development of Web-based geospatial technologies, especially the development of the Sensor Web, a number of limitations have been identified with using HTTP-GET/POST binding in OGC OWS, which cannot meet the needs of asynchronous communication and operations between clients and services or in OGC services chain. Asynchronicity in Web services could be achieved in different ways. Callback pattern is widely supported in client asynchronous invocation. Message-based middleware often can be used together with the asynchronous invocation alternatives. Web Notification Service (WNS) is designed to provide asynchronous messagebased communication in OGC. This paper describes a mechanism for an asynchronous, message-based, event-driven, dynamic geospatial Web system based on OGC Web services. The addition of asynchronicity in OGC Web services has two components. One is the augmentation of OGC Web services with asynchronous message-based notification. The other is asynchronous OGC Web service orchestration based on BPEL.

Paper Details

Date Published: 29 December 2008
PDF: 7 pages
Proc. SPIE 7285, International Conference on Earth Observation Data Processing and Analysis (ICEODPA), 72852J (29 December 2008); doi: 10.1117/12.815751
Show Author Affiliations
Min Min, Wuhan Univ. (China)
George Mason Univ. (United States)
Liping Di, George Mason Univ. (United States)
Genong Yu, George Mason Univ. (United States)
Nengcheng Chen, George Mason Univ. (United States)
Jianya Gong, Wuhan Univ. (China)

Published in SPIE Proceedings Vol. 7285:
International Conference on Earth Observation Data Processing and Analysis (ICEODPA)
Deren Li; Jianya Gong; Huayi Wu, Editor(s)

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