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wmo-im / iwxxm

XML schema and Schematron for aviation weather data exchange
https://old.wmo.int/wiswiki/tiki-index.php%3Fpage=TT-AvXML
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Guidance on Publishing Extensions #176

Open marqh opened 4 years ago

marqh commented 4 years ago

Prodcue guidance documentation for members publishing national extensions

blchoy commented 3 years ago

At WG-MIE/7 in 2021, the need to have a global repository for State IWXXM extensions was discussed. Two conclusions came out:

Decision MIE/7-04: Global Repository for State IWXXM Schema Extensions That, the WG-MIE agree on the necessity to establish a global repository to collate and store information on State extensions to the IWXXM schemas.

Decision MIE/7-05: Designation of a Body to Host the Global Repository for State IWXXM Schema Extensions That, the WG-MIE develop a Working Paper for METP/5 inviting the ICAO Secretariat to arrange for designation of a body to host a 24/7 supported repository (website or SharePoint) to collate and store information on State extensions to the IWXXM schemas.

So the global repository is a natural place for the guidance on developing extension.

amilan17 commented 2 years ago

At this point, there are no plans to publish the extensions through WMO.

mgoberfield commented 2 years ago

As this is determined not to be WMO's responsibility, should this issue be closed?

blchoy commented 2 years ago

Technically we may want to say something on the best practices on writing an extension (e.g. choosing namespace). However, I think it will only cover one page or less. I will suggest to have it included in the documentation ICAO teams are producing. So yes, please have this closed.

blchoy commented 5 months ago

Actually there are activities within WG-MIE on IWXXM extension:

If materialized then this repository is the best location to host guidance on the preparation and maintenance of IWXXM extensions which covers not only technical stuff provided by TT-AvData but administrative functions to be determined by ICAO global and/or regional groups (e.g. following AIRAC requirements mentioned in Section 6.2 of ICAO Annex 15):

As this issue has been re-opened it could be time for us to prepare some technical inputs for the ICAO team to incorporate?