Presentation of requirements and recommendations

Copyright © 2014 Open Geospatial Consortium 17 XML Extensible Markup Language

5.2 UML notation

Some of the diagrams that appear in this document are presented using the Unified Modeling UML notation. Subclause 5.2 of [OGC 05-008c1] provides some general guidance regarding the use of class diagrams.

5.3 Namespace prefix conventions

Table 2 lists the namespaces used in this document and the specifications in which they are defined. The prefixes are not normative and are merely chosen for convenience; they may appear in examples without being formally declared, and have no semantic significance. The namespaces to which the prefixes correspond are normative, however. Table 2 — Namespace mappings Prefix Namespace URI Specification wrs http:www.opengis.netcatwrs1.0 WRS profile OGC 07-110 rim urn:oasis:names:tc:ebxml-regrep:xsd:rim:3.0 OASIS ebRIM 3.0 csw http:www.opengis.netcatcsw2.0.2 CSW part Clause 10 of OGC Catalogue Services 2.0.2 07- 006r1 ows http:www.opengeospatial.netows OGC Common 1.0 ogc http:www.opengis.netogc OGC Filter 1.1 gml http:www.opengis.netgml OGC GML 3.1.1 gmd http:www.isotc211.org2005gmd ISOTS 19139 dc http:purl.orgdcelements1.1 Namespace Policy for the DCMI a xlink http:www.w3.org1999xlink XML Linking Language XLink Version 1.0 a See http:dublincore.orgdocumentsdcmi-namespace .

5.4 Presentation of requirements and recommendations

Requirements are presented using the following style: Req reqrequirements class idlocal requirement id requirement text Copyright © 2014 Open Geospatial Consortium 18 reqrequirements class idlocal requirement id is the unique identifier within the document. It is the path fragement that appended to the URI identified in Clause 2 provides the URI of the requirement which can be used to unamibiguously identify the requirement. requirement text is the requirement itself. Recommentdation are written in bold text, normative verbs like SHALL are written in captials. 6 Catalog infrastructure overview Enterprise Viewpoint 6.1 Application domain A metadata repository managed by a catalogue implementing this extension package deals with ISO 19115, ISO 19115-2 and ISO 19119 compliant metadata ISO19139 encoded with a specific focus on geospatial data, geospatial services and geospatial applications. This document does not attempt to specify a general-purpose catalogue. Rather, it allows the retrieval and management of the metadata objects referred to above. This extension package has no specific disciplinary focus. All communities working with these sorts of geospatial information are addressed. Typical communities are earth observation, meteorology, energiewende, surveying, environment, geology, landscaping, water management, telecommunications etc. The intention is to implement the generally understood ISO1911519115-219119 information model based on the metamodel as defined in ebRIM profile of CS-W. It should model at most as many ebRIM RegistryObjects as required to be able to provide the most important use- cases for discovery needed by the communities named above. This specification is based on the OGC CSW-ebRIM Registry Service - Part 1: ebRIM profile of CSW [OGC 07-110]. The essential capabilities of a catalogue service within a service- oriented architecture are described in clause 6.1 of the profile. It is further aligned with the ISO 19115 and ISO 19119 extensions defined in [OGC 07-045].

6.2 Essential use cases