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A Catalogue Service for Internet GIS ervices Supporting Active Service Evaluation and Real‐Time Quality Monitoring
Author(s) -
Shen Shengyu,
Zhang Tong,
Wu Huayi,
Liu Zhijia
Publication year - 2012
Publication title -
transactions in gis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.721
H-Index - 63
eISSN - 1467-9671
pISSN - 1361-1682
DOI - 10.1111/j.1467-9671.2012.01363.x
Subject(s) - geospatial analysis , service (business) , world wide web , the internet , computer science , publication , quality of service , service quality , quality (philosophy) , database , geography , business , telecommunications , cartography , marketing , philosophy , epistemology , advertising
Internet‐based G eographical I nformation S ervices ( GIS ervices) have exploded in depth and variety over the past few years. More and more academic institutions, private companies, and even individuals publish their own geographical information resources in the form of GIS ervices on the Internet. In today's resource‐rich environment, fast and accurate service discovery is a significant problem for industry and academia, as well as regular users. To solve this problem, researchers introduced S ervice‐ O riented A rchitecture ( SOA ) to the domain of GIS ervices. Being the core of SOA , a registry catalogue implements message exchange services. But current catalog service mechanisms lack the capability to search services, to monitor and to provide accurate descriptions for quality of service in an active manner. Therefore, current catalogue services are not able to overcome problems such as limited registered resources, inaccurate registration information and the uncertainty of service status in various geospatial applications. A catalogue framework for GIServices is proposed that effectively integrates the Q uality of GIS ervices ( QoGIS ervice) theory, as well as service crawling/search and dynamic monitoring techniques. A prototype application focused on W eb M ap S ervices ( WMS ) was established that mitigated the abovementioned problems through active service evaluation and real‐time quality monitoring mechanisms.