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Proceedings in pdf format. - Sociotechnical Systems Engineering ...

Proceedings in pdf format. - Sociotechnical Systems Engineering ...

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METADATA AND CATALOGUEA revival <strong>in</strong> awareness of the importance ofgeography and how th<strong>in</strong>gs relate spatially, comb<strong>in</strong>edwith advancements <strong>in</strong> electronic technology, has caused aworldwide expansion <strong>in</strong> use of digital geographic<strong>in</strong><strong>format</strong>ion and geographic <strong>in</strong><strong>format</strong>ion systems (GIS).People from a wide range of discipl<strong>in</strong>es outsidegeographic sciences and <strong>in</strong><strong>format</strong>ion technologies are<strong>in</strong>creas<strong>in</strong>gly capable of produc<strong>in</strong>g, enhanc<strong>in</strong>g, andmodify<strong>in</strong>g digital geographic <strong>in</strong><strong>format</strong>ion.A Catalogue is simply a collection of 'entries' that isorganized to assist <strong>in</strong> the discovery, access, and retrievalof geospatial resources that are of <strong>in</strong>terest to the user,especially when the user does not know the existence orwhereabouts of the resource. Be<strong>in</strong>g a collection ofcatalogue entries, a catalogue should be able toenumerate each of its entries, and should allow entries tobe added or removed. It should also support queries thatwill enable the user to obta<strong>in</strong> entries of <strong>in</strong>terest based onspecified criteria.The important task of NNR portal is to supportcomb<strong>in</strong>ed search for spatial and non-spatial <strong>in</strong><strong>format</strong>ion.Therefore, the decision was to implement two systems,which comb<strong>in</strong>e ISO19115 standards for spatial data andDC for non-spatial data.The solution is based on MIcKA metadata systemdeveloped by HSRS (member of OGC) (see Figure 1).For the search of textual, multimedia and educationalcontent, projects and tools, the Dubl<strong>in</strong> Core metadatamethodology that is implemented <strong>in</strong> the MIcKAcatalogue system will be used. The specific profiles ofDC metadata will be prepared for <strong>in</strong><strong>format</strong>ion searches.The <strong>in</strong>tegration of a Thesaurus (AgroVoc) and Gazetteersbased on NUTS 5 European level support<strong>in</strong>g localisationof <strong>in</strong><strong>format</strong>ion is recommended. For the search forGeospatial <strong>in</strong><strong>format</strong>ion, the ISO19115 metadata model(respective implementation scheme 19139) that isimplemented <strong>in</strong> MIcKA will be used.Figure 2. Map Designer layout.The follow<strong>in</strong>g part of the catalogue is Map DesignerMapMan (see Figure 2) supported:• Search for spatial data (see Figure 3);Figure 3. Spatial data search <strong>in</strong> MapMan.• Def<strong>in</strong>ition of the composition of spatial data(see Figure 4);Figure 4. Spatial data process<strong>in</strong>g.Figure 1. MicKA catalogue system.• Stor<strong>in</strong>g of this composition as an application ofMapServer.Annual <strong>Proceed<strong>in</strong>gs</strong> of Vidzeme University College “ICTE <strong>in</strong> Regional Development”, 200638

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