Abstract
Abstract. Geospatial web services composition becomes one of the main solutions for complex computing in the GIS realm with the development of information interoperability and advanced IT technologies. Standard geospatial web services only have two simple statuses: success or failure. However the procedures for geospatial information processing and analysis always feature intensive data, complex computation, and long processing times. Thus, standard geospatial web services composition only provides basic functions and cannot fully satisfy geospatial information processing and analysis needs. The problems with standard geospatial web services are numerous, including difficulties in controlling and monitoring geospatial web services, composition optimization, and error tracking. The execution status of geospatial web services composition must be monitored becoming the basis for further optimization of the geospatial web services composition model. This paper proposes a framework for geospatial web service composition that supports real-time status monitoring. This framework effectively integrates geospatial web services with status interfaces and dynamic monitoring technology. Experiments show that this framework can effectively monitor execution information, reminding users of bottleneck information thus providing the foundation for further improvements in the model's execution efficiency.
Highlights
One of the developing trends in web service technology is web services composition
This paper proposes a framework for geospatial web service composition supporting real-time status monitoring
The framework consists of four parts: client, engine for geospatial web service composition, geospatial web services agent, and geospatial web services with status
Summary
One of the developing trends in web service technology is web services composition. Various web services composition specifications have been proposed, e.g., WS-BPEL (Web Service - Business Process Execution Language, OASIS, 2007), WS-CDL (Web Services Choreography Description Language, W3C, 2004a), and WSFL (Web Services Flow Language, IBM, 2001), that have made standardized web service procedures more and more common. When the geospatial web services composition model execution fails, users cannot track errors, resulting in an unpleasant user experience. These deficiencies show that most of the current geospatial web service composition frameworks just work for building and execution of the geospatial web service model, but contribute little to the optimization and reuse of models. Given these deficiencies, a framework for geospatial web service needs a composition supporting real-time status monitoring. It is necessary to establish a platform that integrates geospatial web services composition modelling, deployment, execution and monitoring
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
