OSGeodata: Unterschied zwischen den Versionen

Aus Geoinformation HSR
Wechseln zu: Navigation, Suche
Zeile 7: Zeile 7:
 
:''Managing metadata well is the key to making a repository of open geographic data really useful and re-usable. Creating metadata can be a dull chore. Part of the problem is over-focus on production, rather than consumption; on standards, rather than on usage. The Geodata Committee at OSGeo has been working on a "simplest useful thing" approach to geographic metadata...''. (Citation from Jo Walsh)
 
:''Managing metadata well is the key to making a repository of open geographic data really useful and re-usable. Creating metadata can be a dull chore. Part of the problem is over-focus on production, rather than consumption; on standards, rather than on usage. The Geodata Committee at OSGeo has been working on a "simplest useful thing" approach to geographic metadata...''. (Citation from Jo Walsh)
 
   
 
   
Therefore we urgently need a metadata information model (see below) as well as a metadata exchange protocol (see 'geographic catalog protocol' below).
+
Therefore we urgently need a '''metadata information model''' (see below) as well as a '''metadata exchange protocol''' (see below).
  
 
Keywords: ''Open access to and dissemination of geographic data (geodata) and information; Metadata; Finding,  
 
Keywords: ''Open access to and dissemination of geographic data (geodata) and information; Metadata; Finding,  
Zeile 14: Zeile 14:
 
== Towards a new metadata exchange protocol... ==
 
== Towards a new metadata exchange protocol... ==
  
After having agreed on a better protocol there is also a need for a better name than 'geographic catalog protocol', like 'Geographic Metadata Harvesting Protocol'.
+
After having agreed on a better protocol there is also a need for a better name than 'Geographic Catalog Service or Protocol', like 'Geographic Metadata Harvesting Protocol'.
  
For general '''protocol requirements''' read [[OSGeodataMetadataProtocol]]. We tend to propose a harvesting approach which means, that in a first step XML files are pulished and in a second step [[OAI-PMH]] could be utilized.
+
For general '''protocol requirements''' read [[OSGeodataMetadataProtocol]].
  
 
For proposals around the '''metadata information model''' requirements see [[OSGeodataMetadataModel]].
 
For proposals around the '''metadata information model''' requirements see [[OSGeodataMetadataModel]].

Version vom 21. August 2006, 10:36 Uhr

Overview

These are experimental pages originated from OSGeodata Mailing List on OSGeo.org.

Let's finally unleash geographic information through open access and dissemination of geographic data and (metadata) search appliances!

Managing metadata well is the key to making a repository of open geographic data really useful and re-usable. Creating metadata can be a dull chore. Part of the problem is over-focus on production, rather than consumption; on standards, rather than on usage. The Geodata Committee at OSGeo has been working on a "simplest useful thing" approach to geographic metadata.... (Citation from Jo Walsh)

Therefore we urgently need a metadata information model (see below) as well as a metadata exchange protocol (see below).

Keywords: Open access to and dissemination of geographic data (geodata) and information; Metadata; Finding, harvesting or discovery of geodata and web map services; Interoperability; Integration; Service binding; Spatial data infrastructure; Standards.

Towards a new metadata exchange protocol...

After having agreed on a better protocol there is also a need for a better name than 'Geographic Catalog Service or Protocol', like 'Geographic Metadata Harvesting Protocol'.

For general protocol requirements read OSGeodataMetadataProtocol.

For proposals around the metadata information model requirements see OSGeodataMetadataModel.

Need for a metadata information model

We definitively need a metadata information model. Geographic catalog is rather data provider centric name for a system and a model, so we prefer a user centric 'metadata (information) model'. See OSGeodataMetadataModel for further discussion.

Weblinks

Information:

Geographic information search services: