Javier Nogueras-Iso

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This work proposes an architectural style, a pattern, for SDIs. This style provides a tool and a shared vocabulary to help system architects to design these infrastructures, and facilitates the exchange of knowledge about them. This style is defined under the component-and-connector architectural viewtype, extending the client-server and shared-data styles.(More)
One of the essential components for the construction of a geographic spatial data infrastructure at a regional, national or global level is the geographic information catalog server. But, for the catalog to be a useful component, it must enable access to geographic information metadata independently of the nature of search client applications, in other(More)
The OpenGIS Catalogue Services (CS) specification defines a set of abstract interfaces for the discovery, access, maintenance and organization of metadata repositories of geospatial information and related resources in distributed computing scenarios, such as the Web. The CS specification also defines a HTTP protocol binding, which is called " Catalogue(More)
Ontologies are used within the context of Spatial Data Infrastructures to denote a formally represented knowledge that is used to improve data sharing and information retrieval. Given the increasing relevance of semantic interoperability in this context, this work presents the specification and development of a Web Ontology Service (WOS), based on the OGC(More)
The use of metadata expands on the opportunities for interoperability. By interop-erability, it is meant the ability to develop conventions that enable data exchange and integration. Metadata descriptions from different domains are not semantically distinct but overlap and relate to each other in complex ways. As the number, size and complexity of the(More)
The growing importance of eGoverment is putting pressure on authorities to provide services online and accessible to the citizen. In order to satisfy this necessity, Goverments have to develop high-cost infrastructures in a short period of time and with a diffuse specifications of the objectives and services. In the other hand, there are a large set of(More)
The use of open technologies and standards have made easier the integration of Web services into end-applications. These interoperable services have been organized on distributed architectures over Internet in accordance with shared functional principles. But these Web-service architectures have not resolved the distributed computing difficulty in " gluing(More)
Spatial Data Infrastructures (SDIs) are large, open, distributed and standards-based information systems which intend to facilitate and promote the use of spatial data and spatial services on the Internet. Spatial data describe information tied with locations on Earth, while spatial services allow to manipulate spatial data following a Service Oriented(More)