Conference Paper

Semantically Enriching An Open Source SOS Implementation For Accessing Heterogeneous Environmental Data Sources

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Abstract

Many kinds of environmental data are nowadays publicly available, but spread over the web. This paper discusses using the Sensor Observation Service (SOS) standard of the Open Geospatial Consortium (OGC) as a common interface for providing data from heterogeneous sources which can be integrated to a user tailored environmental information system. In order to allow for providing user-tailored and problem-specific information the adjusted SOS is augmented by a semantic layer which maps the environmental information to ontology concepts. The necessary information fusion from different domains and data types lead to several specific requirements for the SOS. Addressing these requirements we have implemented a SOS which still conforms to the OGC SOS 1.0.0 standard specification. The developed SOS has been integrated in a publicly available demonstrator of our personalized environmental information system. Additionally this paper discusses future consequences for the SOS, caused by the recently published SOS 2.0 specification.

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... For "fully Open", the authors intend a system composed of Open Hardware, Software, Standards and Data, while for "non-conventional" The main open question is: could a 4ONSE system be a viable solution to monitor local phenomena in a sustainable and "effective way", so as to meet the users' needs? Unfortunately, despite the existence of research that investigated Open Hardware solutions [23,24] or Open Standard [25,26], to the knowledge of the authors, the combination of these two systems with open software and data has been investigated in only a few cases [27][28][29]. The question, which remains therefore largely under-explored, is partially addressed in this research which evaluates the quality of the 4ONSE system, and it is presented in the next sections. ...
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