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Geoinformatics-8-2009
cloud. on a conceptual level, we showed that cloud computing is not a completely new concept and applied to sdi, the classical publish-find-bind pattern in sdis does not have to be modified. therefore, we see a paradigm shift from technological to economical aspects in contrast to a complete paradigm change. on a technical level, our tests showed that using the google and amazon cloud, average response times could be held almost constant during an increasing high demand of simultaneous requests. however, our tests also showed, that for the cloud approach, bottlenecks outside the cloud have to be taken into account and could eliminate the positive cloud effects if not carefully evaluated. nevertheless, the tests showed that cloud computing keeps its promises and should be regarded further in sophisticated setups. the presented approach is to our knowledge the first ogc-compliant cloud service ever and could pave the way for a paradigm shift in sdis. on the basis of our past experience we still believe that cloud computing is promising for building up, operating and utilizing sdi in an effortless way and promising for geospatial applications to enable new business models with less up-front investments. furthermore, cloud computing could be potentially the missing element to popularize sdis to a broader non-expert community. to further advance the adoption and combination of cloud computing and sdi, the 52°north geoprocessing community members will continue their basic research by addressing the following questions and topics. how can cloud computing lower the barriers for building, operating and utilizing sdi? how can cloud computing promote innovative and promising geospatial e-commerce models? how can cloud computing popularize geospatial applications to a broader and collaborating community? this article was submitted on behalf of the 52°north initiative for geospatial open source software gmbh. bastian baranski baranski@52north.org is a research associate at the institute for geoinformatics (ifgi) at the university of munster. he is working on his phd thesis with a focus on the integration of service level agreements (sla) in open standards based sdis. bastian schaffer schaeffer@52north.org holds a degree in geoinformatics from university of munster. he is currently in the process of writing his phd thesis and works for 52°north as the head of the geoprocessing community. richard redweik redweik@52north.org is a student assistant at the institute for geoinformatics (ifgi) and works for 52°north as a software developer. currently he is elaborating the application of cloud computing in the gi domain. links: www.52north.org/wps www.opencloudmanifesto.org/ www.microsoft.com/azure/default.mspx www.ibm.com/ibm/cloud/ www.sun.com/solutions/cloudcomputing/index.jsp www.opencloudconsortium.org http://opencloudconsortium.org/testbed.htm https://opencirrus.org/ www.eucalyptus.com/ http://udig.refractions.net/ http://earth.google.de the industry is positioning itself with the help of modern satellite navigation systems, transport companies are able to manage their vehicle fleets and farmers are sowing their seeds. other industries are only now discovering the various application benefits of this new technology which already has an influence on practically all branches of the economy and areas of life. with positionale, messe stuttgart is creating the first european industry platform, which will bring technology suppliers, service providers and users together. find your position ! secure your trade fair participation at positionale 2010. new stuttgart trade fair centre 18 to 20 may 2010 www.positionale.de key exhibition areas: transport and logistics traffic and automotive i machine control satellite surveying i terrestrial satnav technology and services i satellite-based technology latest news? visit www.geoinformatics.com
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