Global-Scale Resource Survey and Performance Monitoring of Public OGC Web Map Services

Global-Scale Resource Survey and Performance Monitoring of Public OGC Web Map Services

One of the most widely-implemented service standards provided by the Open Geospatial Consortium (OGC) to the user community is the Web Map Service (WMS). WMS is widely employed globally, but there is limited knowledge of the global distribution, adoption status or the service quality of these online WMS resources. To fill this void, we investigated global WMSs resources and performed distribute...

Cartographic Extensions to OGC Web Map Services - Specifications for a Map and Diagram Service

Increasing the Fitness of OGC-Compliant Web Map Services for the Web 2.0

Google Maps and Google Earth are very popular web mapping services but they are not open and not OGC-compliant. The question arises why this is not the case. One reason is that commercial data providers require a tight coupling between the provided maps and additional supplements like advertisements. Another answer to this question is the missing support of mashups that become more and more pop...

An active crawler for discovering geospatial Web services and their distribution pattern - A case study of OGC Web Map Service

This article may be used for research, teaching and private study purposes. Any substantial or systematic reproduction, redistribution , reselling , loan or sub-licensing, systematic supply or distribution in any form to anyone is expressly forbidden. The publisher does not give any warranty express or implied or make any representation that the contents will be complete or accurate or up to da...

Automatic Discovery and Composition of OGC Web Services

The Semantic Web is based on the idea of annotating Web content with machine-interpretable metadata such that computers are able to process this content on a semantic level. These semantic annotations make it possible a higher degree of automation and allow that more precise results can be achieved in tasks like Web services discovery and composition. This thesis proposes an approach that uses ...