Useful Terms

ABCD Access to Biological Collection Data. See http://www.bgbm.org/TDWG/CODATA/Schema/default.htm.
Access Point The URL (web address) of a Web Service.
Backus-Naur Form a metasyntax used to express context-free grammars. See http://en.wikipedia.org/wiki/Backus-Naur_form.
BioCASe Biological Collections Access Service. See http://www.biocase.org.
CNS Concept Name Server. A service to get information about existing conceptual schemas and their concepts.
Concept Definition of a property, class or relationship.
Conceptual schema A formal definition of concepts. It can also be seen as a data model or ontology.
Data source The term used in the BioCASE project for an access point.
Dublin Core Dublin Core Metadata Initiative. See http://dublincore.org
DiGIR Distributed Generic Information Retrieval. See http://digir.net.
Federation schema A conceptual schema adopted by a federation.
GBIF Global Biodiversity Information facility. See http://www.gbif.org.
GET HTTP communication method where form data are encoded as parameters in an extension to a URL. The GET method is principally used to transmit requests for data to a web server (e.g., a simple database search).
HTML Hypertext Markup Language. A subset of Standard Generalised Markup Language (SGML), used for authoring pages for the World Wide Web.
HTTP Hypertext Transfer protocol, the commonly used protocol for transmitting requests and documents between applications on the World Wide Web.
KVP Key-Value Pair. One of the possible encodings for TAPIR requests.
OGC Open Geospatial Consortium. See http://www.opengeospatial.org.
OMG Object Management Group. See http://www.omg.org/.
NCD Natural Collections Descriptions. A TDWG emerging standard for describing collections of natural history material. See http://www.tdwg.org/NCD/TDWG_NCD_Subgroup.htm.
normative Referring to a standard or set of norms that are understood to be correct. A normative document is one which describes how things ought to be and why.
Output Model An XML schema language (or potentially other) formatted response structure.
POST POST is an HTTP communication method that can include any kind of data or command. The data are encoded separately and do not form part of the URL as in a GET message so this method is better for complex, sensitive, lengthy or non-ascii data.
protocol An agreed format for transmitting data between two or more devices.
Provider Originally defined as an organisation hosting either a DiGIR or a BioCASe service. In the context of TAPIR, an organisation hosting a TAPIR access point, which may point to several data sources.
Provider software Software running on a web server that facilitates access to data.
RDF Schema A language for describing vocabularies in the Resource Description Framework (RDF). See http://www.w3.org/TR/rdf-schema/.
SDD Structure of Descriptive Data. A TDWG, XML-based interoperability standard for descriptive data.
SOAP Simple Object Access Protocol, an XML-based messaging protocol used for invoking web services and exchanging structured data.
TAPIR TDWG Access Protocol for Information Retrieval.
TCS Taxonomic Concept Transfer Schema. An XML schema for the exchange of taxon concepts. See http://tdwg.napier.ac.uk.
TDWG Taxonomic Databases Working Group. See http://www.tdwg.org/.
TSA The Species Analyst, a research project developing standards and software tools for sharing biodiversity information. See http://speciesanalyst.net/.
UDDI Universal Description, Discovery and Integration. UDDI is a specification for maintaining standardised directories of information about web services.
URL Uniform Resource Locator. The address of a resource on the Internet
URI Uniform Resource Identifier. A formatted string that serves as an identifier for a resource, typically, but not exclusively, on the Internet. URIs are used in HTML hyperlinks.
W3C World Wide Web consortium. See http://www.w3c.org.
Web Service A service based on Internet Protocols, such as HTTP, SMTP or FTP, and also based on XML.
WFS Web Feature Services. An Open Geospatial Consortium XML-based standard to enable transfer of geographic feature data using Geography Markup Language (GML). See http://schemas.opengis.net/wfs/.
wrapper Software that allows standardised queries to be run against an underlying database.
WSDL Web Services Description Language. An XML format for describing Web Services as a set of end points operating on messages containing either document-oriented or procedure-oriented information. WSDL is the language used by UDDI.
XMI XML Metadata Interchange (XMI) is an OMG standard for exchanging metadata information via XML. See http://www.omg.org/technology/documents/formal/xmi.htm.
XML Extensible Markup Language developed by the W3C. A means of tagging data for transmission, validation and manipulation. See http://www.w3.org/XML and http://www.w3.org/TR/REC-xml.
XML Schema A formal definition of the required and optional structure and content of XML formatted documents within its domain. See http://www.w3.org/XML/Schema.
XPath Defines a way of locating and processing items in XML documents by using an addressing syntax based on the path through the documents logical tree structure. See http://www3.org/TR/xpath.
XQuery XML Query Language. A W3C specification for querying XML formatted data.

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