This is a call for participation in a new MIG temporary sub-group including MIG representatives and experts from the pool of experts to support action 2017.2 on Alternative Encodings.

The action will define alternative encoding rules (mainly for the purpose of viewing/analysis in mainstream GIS systems) for a number of selected application schemas and a template and procedure for proposing and endorsing additional encoding rules in the future. Detailed information on the action (background, action mandate) is available on the action page on the MIG collaboration platform.

Proposals for alternative encodings rules were collected through an open call on the MIG collaboration platform and prioritised by MS in a survey. The results of a survey clearly show support for GeoJSON as a possible alternative encoding. In addition, also simplified GML, database formats (geopackage, PostGIS, ESRI Geodatabase) and linked data had significant support. Further proposals included also GeoSciML as an alternative encoding for GE and MR.

In the 48th MIG-T meeting, it was agreed to focus activities in the sub-group on the following tasks, in order to achieve concrete results within the remaining mandate of the action (until the end of 2018):

- developing an encoding rule for GeoJSON (as a first example)
- developing generic rules / approaches for flattening the INSPIRE data models (which will be useful for a number of alternative encodings)
- developing the overall procedure for proposing and endorsing additional encodings

The sub-group will be open to observers, who may want to develop alternative encoding rules in parallel to the core activities of the action. Such parallel activities would however not be part of the "official" action deliverables.

Nominations by MIG representatives and applications from the pool of experts should be posted as comments to this issue, specifying the following information:

Name:
E-mail:
Affiliation:
Expertise: [list the experise and experience that qualifies the expert for participation in this sub-group]
Contributions: [describe how the expert will contribute to the the tasks of the sub-group]

Experts who would like to support the work of this sub-group can also apply by e-mail to Michael Lutz (michael.lutz@ec.europa.eu) with the above information and/or contact their national MIG representatives.

The initial deadline for nominations and applications is 2018-06-15.