Advisory groups, and maintenance groups  to support the work

With support from:

CAG 1 - Chair's Advisory Group**

The purpose of the CAG is to advise the Chair - in its role of guiding the Committee manager - in tasks concerning internal coordination and planning of Secretariat duties. The Advisory group comprises of the Convenors of the Working groups, Advisory groups, the Chair and Committee Manager, and invited experts.

CAG is generally convend by the ISO/TC 211 chair; this requires a TC decision.

Read more in terms of reference (N 5664).

Convenor: Mr. Peter Parslow, UK (2022-01)


AG 1 Advisory group on Outreach*

The advisory group on outreach was established at the Adelaide plenary in October 2001. 

Outreach shall perform outreach activities supported by available information resources and communication channels towards various stakeholder groups. This is done according to a plan which aligns with the ISO/TC 211 Strategic Business Plan, and according to the available resources.

Outreach comprises of experts from P-members and liaisons.

Read more in terms of reference (N 5375).

Convenor: Mr. Allan Jamieson, UK (2022-11)


AG 2 Advisory group on strategy**

An advisory group on strategic direction was established at the Kyoto plenary in September 1999.

The advisory group on Strategy (AG 2) is responsible for ensuring the maintenance and implementation of the business plan of ISO/TC 211. 
AG 2 is also responsible to monitor the external environment for emerging standardization opportunities that have influence on ISO/TC 211.
The AG 2 comprises of the Chair, Committee Manager, the Head of delegation for each P-member and the convenors of the working groups and advisory groups.

AG 2 is generally convened by the ISO/TC 211 chair; this requires a TC decision.

Convenor: Mr. Peter Parslow, UK (2022-01)


AG 3 Programme maintenance group (PMG)**

The Programme Maintenance Group (PMG) shall monitor the published ISO/TC 211 standards, specifications, reports and the ISO/TC 211 programme of work, to ensure harmonization and consistency. The PMG shall also monitor changing requirements and technological developments to see whether the ISO/TC 211 programme of work is aligned to these.

The PMG chair, in consultation with the PMG members, may invite technical experts to assist with technical advice on programme maintenance related matters.

The PMG is responsible for two distinct aspects of programme maintenance that are done throughout the year: maintenance of existing standards and new work items

The PMG comprises of the ISO/TC 211 Chair, the working group convenors, TMG, HMMG, GOM, XMG and JAG convenors, and a maximum of one members can be nominated by each member body.

Read more in terms of reference (N 5085).

Convenor: Mr. Jan Hjelmager, Denmark (2022-01)


AG 4 ISO/TC 211 - OGC Joint Advisory Group (JAG)**

JAG ensures coordination between ISO/TC 211 and the OGC. The harmonization and alignment of specifications and standards from the OGC and ISO/TC 211 will facilitate the development of interoperable geospatial architectures and software.

JAG also identifies issues and opportunities between ISO/TC 211 and the OGC and recommends cooperative activities.

The JAG comprises of the ISO/TC 211 Chair and Secretariat, the OGC Chief Technical Officer, the OGC Technical Committee Chair, the ISO/TC 211 Conveners and Project leaders and OGC Domain Working Group and Standard Working Group Chairs.

Read more in terms of reference (N 4003).

ISO/TC 211 Convenor Mr. Dimitri Sarafinof, France (2019-06 - Reappointed 2022-12)
and OGC co-convenor: Mr. Matthew Purss,  Australia (2018-11) and Mr. Robert Gibb New Zealand (2018-11)


AG 5 Harmonized Model Maintenance Group (HMMG)*

The Harmonized Model Maintenance Group was established at the Gyeongju plenary in November 2002, but was already established as the Model Harmonization Team sinc the Vienna plenary in March 1999.

The ISO/TC 211 Harmonized Model represents any UML model under the responsibility of ISO/TC 211,
including UML-models from published standards and specifications, and from draft standards and
specifications submitted for ballot.
The Harmonized Model Maintenance Group (HMMG) shall ensure that the ISO/TC 211 UML models
and derived resources for implementation is maintained and made accessible.

HMMG comprises of  the ISO/TC 211 Chair, Working group and Advisory group convenors, project leaders and editors of all active ISO/TC 211 projects that have UML content.
Additional UML experts may be nominated by member bodies and liaison organisations.

Read more in terms of reference (N 5107).

Convenor: Mr. Knut Jetlund, Norway (2015-06 - Reappointed 2022-12)


AG 6 Group for Ontology Maintenance (GOM)*

The Group for Ontology Maintenance was established by resolution 589 at the Toulouse plenary in June 2012.

The purpose of the Group for Ontology Maintenance is to ensure the development, the maintenance and the accessibility on the Web of ISO/TC 211 ontologies.

The GOM comprises the ISO/TC 211 Chair, the working group convenors, the advisory group convenors, Chairs of ISO/TC 211 joint groups, ISO/TC 211 project leaders, each P-member can nominate one expert in the group all members can nominate observers.

Read more in terms of reference (N 3577).

Convenor: Dr. Nicholas Car, Australia (2020-08)

Convenor: Dr. Ivana Ivanova, Australia (2022-01)



AG 7 Terminology maintenance group (TMG)*

The Terminology maintenance group was established at the Adelaide plenary in October 2001.

The TMG maintains the ISO/TC 211 terminology records, and assists project teams and working groups with harmonising terminology.

The TMG coordinates, manages, and publishes a multi-lingual register of terminology.

The TMG is comprised of all working group convenors, a member from each project team, a member of each national body participating in the multi-lingual register of terminology, and other members with an interest in terminology work.

Read more in terms of reference (N 5455).

Convenor: Mr. Reese Plews, Japan (2017-05 - Reappointed 2021-01)



AG 10 XML Maintenance Group (XMG)*

The XML Maintenance Group was established at the Quebec plenary in November 2009.

The XMG shall ensure that the ISO/TC 211 XML is collected, maintained and made accessible.

The XMG comprises of ISO/TC 211 Chair and working group convenors, Chair and editor of XML related project teams, convenors of the advisory groups PMG, TMG, HMMG and JAG and a maximum of one XMG member per member body is allowed.

Read more in terms of reference (N 2948).

Convenor: Mr. Evert Bleys, Australia (2019-06 - Reappointed 2022-12)

Convenor: Mr. Tobias Spears, Canada (2021-07)




AG 11 Advisory group to support UN-GGIM and other related UN activities*

The advisory group was established at the Sydney plenary in December 2016 and re-form at the Copenhagen plenary in May 2018.

ISO/TC 211, in cooperation with IHO and OGC, develops geospatial standards in direct support of the UN-GGIM and the UN Sustainable Development Goals (SDG).

AG 11 monitors the environment of the UN and the UN SDGs, in order to understand the needs, raise awareness of the benefits of standards, and identify the impacts this has on ISO/TC 211 work. AG 11 collaborates with OGC and IHO, the Standards Development Organizations (SDO), according to a joint work plan. AG 11 co-ordinates the ISO/TC 211 contribution to this joint work, being:

  • Ensuring the maintenance of guidance documents specifically targeted towards the UN-GGIM, such as
          -   The Standards guide and its companion document, developed for UN-GGIM by ISO/TC 211, OGC, and IHO
           -   The Strategic Pathway on Standards, as part of UN-GGIM Integrated Geospatial Information Framework (IGIF), Part 2 Implementation guide (IGIF/Strategic Pathway 6, SP6)
  • Reporting to and participation at the annual sessions of UN-GGIM
  • Reaching out to the UN-GGIM community - the committee, the expert and working groups, thematic groups, and regional groups - by monitoring their needs and raising awareness

The participation of ISO/TC 211 in the work of UN-GGIM is essential. The group is open to members appointed by Member bodies or liaison organizations. The result of the work is presented as recommendations to ISO/TC 211.

Convenor: Mr. Peter Parslow, UK (2022-01)


AG 12 Control Body for the ISO Geodetic Register**

The control body was established at the Molde plenary in May 2009 and re-form at the Copenhagen plenary in May 2018.

The control body comprises of a maximum of two experts in the geodetic field per member body.

Read more about the work in ISO 19127 Geographic information - Geodetic register.

Convenor: Dr. Michael Craymer, Canada, nominated by IAG (2018-05, Reappointed 2022-01) , Vice convenor: Mr. Larry Hothem, USA, nominated by IAG (2018-05, Reappointed 2022-01)



AG 13 Land Cover and Land Use Advisory Group*

The advisory group was establish by resolution from the December plenary 2020.

The Land Cover Land Use Advisory Group is established to advise ISO/TC 211 on the application and implementation of the ISO/TC 211 standards on Land Cover Land Use in the UN and other transnational organizations and to coordinate with thecontext of broader UN initiatives for this purpose.

The Land Cover Land Use Advisory Group shall comprise of the ISO/TC 211 Chair, the working group convenor of WG7, each P-member can nominate one expert in the group, all members can nominate observers.

Read more in terms of reference (N 5505).

Convenor: Mr. Mattieu Henry, FAO (2022-08)



AG 14 Register Management Group**

The advisory group was established with the CIB resolution 2021-25 from the December plenary 2021.

Registration Management Group (RMG) will support the committee with establishment and implementation of RA Standards.

RMG comprises of the RMG convenor, TC chair, TC committee manager, and one TC committee representative recommended by the WG convenor for each ISO/TC 211 register.

Read more in the terms of reference (N 5666).

Convenor: Dr. Michael Craymer, Canada (2022-01)


AHG 10 - Input to EU Data Spaces**

To prepare a document describing the use of standards to enable the publication of high-value datasets in accordance with the upcoming implementation regulation based on the Open Data Directive, and the implementation in the
“data spaces” in accordance with the European Strategy for data (

Convenor: Mr Jari Reini, Finland (2022-12)

AHG 11 - Climate Change**

To propose a work plan for ISO/TC 211 regarding activities on climate observation and prediction, and climate change adaptation and mitigation. This group will coordinate with the convenors of ISO/TC 211/AG 11 and ISO/TC 211/AG 13.

Convenor: Professor Yuqi Bai, China (2023-06)


  *open - the open groups are listed in global directory, to participate contact your national standardization body.

  **closed - the closed groups are not administrated by the national standardization body, to participate contact the secretariat.