1.           Styled Layer Descriptor & Symbology Encoding SWG

Styled Layer Descriptor and Symbology Encoding 1.2 Standards Working Group

2.           Purpose of this Standard Working Group

The purpose of this Standards Working Group is to compile, discuss, and process all change requests that have been submitted to the OGC related to the SLD and SE standards and create a new version of both standards to fulfill new user needs (e.g. 3D portrayal, thematic mapping, ...).

The SWG will achieve this objective by evaluating and processing Change Requests listed in Section 3, ensuring that the standard is consistent with the OGC baseline and business plan.

After discussing the outstanding change requests, the SWG will make a final decision as to what new version numbers of SLD and SE must apply.

3.           Scope of Work

This SWG is focused on processing change requests related to revisions to the Style Layer Descriptor and Symbology Encoding standards.  The Scope of Work (SOW) will be to collect all outstanding Change Requests, evaluate each of these proposals, and make edits to the standard based on Change Requests and related decisions of the SWG membership.

The work of the SWG will be to consider at least the following Change Requests:

For SE:

• 07-105 SE Change request for thematic mapping

-         https://portal.opengeospatial.org/files/?artifact_id=25585

• 09-014 OWS-6 Symbology Encoding (SE) CR

-         https://portal.opengeospatial.org/files/?artifact_id=33517

-         https://portal.opengeospatial.org/files/?artifact_id=33515

• 09-043r1 Enhancements to Symbology Encoding in Support of IHO S-52 and UKHO AML

-         http://portal.opengeospatial.org/files/?artifact_id=33289&version=1

For SLD:

• 09-013 OWS-6 Styled Layer Descriptor (SLD) CR

-         https://portal.opengeospatial.org/files/?artifact_id=33518

-         https://portal.opengeospatial.org/files/?artifact_id=33516

• 08-064 SLD Profile of WMS CR

-         https://portal.opengeospatial.org/files/?artifact_id=28921

Additional Change Requests  are expected through the work of the WMS 1.4 SWG and may be addressed at the discretion of this SWG based on criticality of the change and available time and resources.

3.1       What is out of scope?

Only those change requests addressing the SLD Specification [OGC 05-078r4] and SE Specification [OGC 05-077r4] submitted through the formal process as identified in the OGC TC Policy and Procedures will be addressed.  Therefore, any items suggested through emails, vocal discussions, etc will be outside of the scope of this SWG until formally submitted.

3.2       Specific Contribution of Existing Work as a Starting Point

The starting point for the work will be version 1.1.0 of the Style Layer Descriptor standard (OGC 05-078r4) and version 1.1.0 of the Symbology Encoding standard (OGC 05-077r4).  Additional existing work will include ISO 19117.

3.3       How it is to be Determined when the Work of the SWG has been Completed?

The following criteria will be used to determine the completion of the SWG:

1.       All Change Requests submitted prior to June 20, 2010 have been reviewed and evaluated to the satisfaction of the SWG.  This may include working the proposal, rejecting the proposal, or postponing the proposal to a later version.

2.       A completed revision of Style Layer Descriptor and Symbology Encoding Standards Documents has been produced and reviewed by the SWG and has been approved for submission to the TC for approval as an adopted standard.

3.       All comments have been addressed and the candidate standard has been approved by the OGC Technical and Planning Committees as an Adopted OGC standard.

4.           Description of deliverables

The following deliverables will result from the work of this SWG:

1.       A final version of the Style Layer Descriptor and Symbology Encoding Standards Documents for submission to the TC. 

2.       Corresponding schemas associated with version of the Style Layer Descriptor Standards and version of the Symbology Encoding document(s).

The following schedule of activities is anticipated:

1.       Begin the organization and assignment of work activities during the Styled Layer Descriptor & Symbology Encoding SWG kickoff meeting to be held during TC meetings December 2009.

2.       Preliminary review of version of the Style Layer Descriptor and version of the Symbology Encoding document(s) during TC meetings March 2010. This review will include initial evaluation of which proposed changes are not likely to be ready in time for inclusion in the next version.

3.       Final review of version of the Style Layer Descriptor and version of the Symbology Encoding document(s) during TC meetings June, 2010. This review will include final evaluation of which proposed changes are not likely to be ready in time for inclusion in version.

4.       Post completed version of the Styled Layer Descriptor & Symbology Encoding Standards document(s) at least three weeks prior to TC meetings March 2011.

5.       Standards document(s) submitted to the TC during the TC meetings March, 2011.

The above schedule is meant to serve as a guideline to the SWG in order to determine completion milestones.  However, based on the remaining Change Requests, the completion date may adjust in order to accommodate a critical update to the document(s).  Although all change requests will be addressed, some may be postponed due to the need to more quickly produce document(s) containing higher priority requests.

5.           IPR Policy for this SWG

? RAND-Royalty Free. 

6.           Anticipated Participants

The target audience of Style Layer Descriptor and Symbology Encoding is any implementers and / or users of OGC Styling Services.

7.           Other informative information about the work of this SWG

a. Similar or applicable standards work (OGC and elsewhere).

The following standards, documents and presentations may be relevant to the SWG's planned work and may be used as reference points in determining the work needed to provide the functionality anticipated by this committee's deliverables:

°          3D-Symbology Encoding Discussion Draft

http://portal.opengeospatial.org/files/?artifact_id=32904&version=1

°          Introduction to CR 07-105

https://portal.opengeospatial.org/files/?artifact_id=25584

°          ORCHESTRA Map and Design Service

https://portal.opengeospatial.org/files/?artifact_id=22684

°          ISO 19117 / SLD Harmonization

https://portal.opengeospatial.org/files/?artifact_id=30021

°          ISO 19117 Geographic Information Portrayal

https://portal.opengeospatial.org/files/?artifact_id=34357

°          OWS-6 Symbology Presentation (relates to the OWS CRs and ERs above)

https://portal.opengeospatial.org/files/?artifact_id=34356

°          Extending OGC styled layer descriptor for thematic cartography

https://portal.opengeospatial.org/files/?artifact_id=35767

http://www.geographie.uni-bonn.de/karto/Thematic-SLD.LBS-Telecarto2007.pdf

°          Towards Web Services Dedicated to Thematic mapping

http://www.osgeo.org/files/journal/v3/en-us/final_pdfs/ertz.pdf

b. Details of the first meeting

The first meeting of this SWG will be during the December 2009 TC Meetings in Mountain View, CA.

c. Projected on-going meeting schedule

The work of this SWG will be carried out primarily by email, IRC meetings and conference calls, with face-to-face meetings at each of the OGC TC meetings as defined by the chair.  One IRC meeting  is currently planned each first Tuesday per month at 3:00 - 4:00 PM UTC Time.  This time may change based on participant availability.

 

d. Supporters of the Proposal

The following people support this proposal and are committed to the Charter and projected meeting schedule. These members are known as SWG Founding or Charter members. Once the SWG is officially activated, this group is immediately "opted-into" the SWG and have voting rights from the first day the SWG is officially formed.

Name	Organization
Erwan Bocher	Institute for Research on Urban Sciences and Techniques
Reinhard Erstling	Interactive Instruments
Olivier Ertz	School of Business & Engineering Vaud Switzerland
Vincent Heurteaux	Geomatys SA
Christian Kiehle	lat/lon GmbH
Stan Tillman	Intergraph Corporation
Alvaro Zabala	Junta de Andalucía, Spain
Alexander Zipf	University of Bonn, Department of Geography
Craig Bruce	CubeWerx

 

 
e. Convener(s)

Olivier Ertz, School of Business & Engineering Vaud Switzerland

 

Acknowledgements. Thanks to OASIS for providing a template as the basis for defining the OGC SWG template.