a service-oriented architecture for proactive geospatial information services积极的地理空间信息服务的面向服务的体系结构.pdfVIP

Future Internet 2011, 3, 298-318; doi:10.3390/fi3040298 OPEN ACCESS future internet ISSN 1999-5903 /journal/futureinternet Article A Service-Oriented Architecture for Proactive Geospatial Information Services Haifeng Li 1 and Bo Wu 2,* 1 School of Geosciences and Info-Physics, and School of Civil Engineering, Central South University, 22 Shaoshan South Road, Changsha 410004, China; E-Mail: lihaifeng@ 2 Department of Land Surveying Geo-Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China * Author to whom correspondence should be addressed; E-Mail: lsbowu@.hk; Tel.: +852-2766-4335; Fax: +852-2330-2994. Received: 18 November 2011; in revised form: 12 December 2011 / Accepted: 15 December 2011 / Published: 19 December 2011 Abstract: The advances in sensor network, linked data, and service-oriented computing has indicated a trend of information technology, i.e., toward an open, flexible, and distributed architecture. However, the existing information technologies show a lack of effective sharing, aggregation, and cooperation services to handle the sensors, data, and processing resources to fulfill user ’s complicated tasks in near real-time. This paper presents a service-orientated architecture for proactive geospatial information services (PGIS), which integrates the sensors, data, processing, and human services. PGIS is designed to organize, aggregate, and co-operate services by composing small scale services into servic