Changes between Version 3 and Version 4 of 1q2007


Ignore:
Timestamp:
04/02/07 13:30:44 (18 years ago)
Author:
ticheler
Comment:

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  • 1q2007

    v3 v4  
    1313A lot of development has been going over the last 9 months. Many new functions have been added and existing ones have been enhanced. The plan is to release a final version 2.1 of the catalog software towards the end of April 2007. Here's a summary of what has been developed for this release:
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    15 * Support for the ISO-19115 metadata standard, formatted and validated against the ISO-19139 implementation schema [wiki:115and139Confusion Read more].
     15* Support for the ISO-19115 metadata standard, formatted and validated against the ISO-19139 implementation schema. [wiki:metadataSupport Read more] [wiki:115and139Confusion The ISO19115 / 19139 confusion]
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    17 The ISO19115-19139 standards seem to confuse many, many people. Here's a short attempt to clarify the situation :-)
    18 There is only one (1!) metadata standard for geographic data, and that is the ISO-19115 metadata standard. The ISO-19115 standard was originally released without a DTD or XML schema that could be used to validate such a metadata record (formatted as an XML document). It was decided by ISO TC211 to develop a specific implementation standard, called ISO-19139. This standard would have the form of a metadata scheme (an XSD document). The schema can be used to validate the structure of an ISO-19115 document. It has taken a long time for a good 19139 schema to be released. A final schema is still not available to date (04-2007).
     17* Support for the OGC Catalog Services for the Web (OGC-CSW 2.0.1) base specification. [wiki:csw201 Read more]
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    20 To confuse things more, many software started implementing different versions of the ISO-19115 standard :( The !GeoNetwork development team decided back in 2002 to use the Draft International Standard version of ISO-19115 (ISO-19115:DIS). This version of the standard (not yet standard at that point) provided a DTD and was as such the only version that could have a formal checking of its structure. !GeoNetwork used (and still supports) short element names in its XML representation.
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    22 For !GeoNetwork 2.1 we have now created a migration procedure to convert the ISO-19115:DIS formatted metadata into a structure that complies with the formal ISO-19115:2003 standard and that validates against the ISO-19139 schema as [http://eden.ign.fr/xsd/isotc211/20060504 released on 4 May 2006] referred to as 'final Release candidate for TS'.
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    24 GeoNetwork opensource still supports the 19115:DIS format for backward compatibility, but it is foreseen that that format will be less exposed to users to facilitate transition to the new format and avoid a bit of confusion :-)
     19* Web based harvesting configuration between !GeoNetwork opensource nodes and from Web accessible folders [wiki:harvesting Read more]
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