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by Jan Karlshøj last modified Apr 06, 2014 10:55 PM
International User Group Charter


1.     Role of the International User Group (IUG)

1.1       It is the aim of the International User Group and Regional User Groups to promote and stimulate the use of buildingSMART deliverables in order to improve interoperability in the construction industry, and to share experiences among its members so as to achieve a balance between giving and taking.

1.2       The International User Group (IUG) reports to the International Council (IC). The International User Group is lead by the International User Group Chair. The International User Group consists of representatives from the Regional User Groups (RUG), each of which is lead by a User Group Coordinator (UGC).


1.3       The IUG will:
  • Take responsibility to describe, document and disseminate business solutions/models to help the industry profit from implementing openBIM standards[1]     
  • Take responsibility to collect, prioritize, document and co-ordinate user requirements between local and international levels for the openBIM standards
  • Drive the piloting and prototyping of specific uses of openBIM standards and establish the requirements for their ongoing development
  • Support and facilitate the organization of regional user groups represented by official delegates in the IUG. The official delegates shall represent the views of the regional user groups
  • Recognize that chapters will organize their regional user groups to accord with the local business culture.


2.     Definition of a User

2.1       Anyone involved in the application of openBIM standards to solve specific business problems

2.2       Anyone who takes advantage of the application of openBIM standards

2.3       Such people not to have a commercial interest in developing/selling software.


3.     Mission

3.1       The International User Group has two main objectives:

  • Operational issues: Improve interoperability using openBIM standards in planning, design, construction, operation, maintenance and facilities management, and thereby in related educational activities.
  • Strategic and tactical: By collecting views on strategic and tactical priorities regarding interoperability from clients and the industry gain critical mass in the industry and among clients to influence acceptance of openBIM standards  by commercial companies, authorities and other relevant organizations.


3.2       All activities in the User Groups should only relate to usage or desired functionality for  buildingSMART deliverables or implemented solutions.

3.3       The User Group can publish positive results as well as critical issues relating to  buildingSMART specifications or implementation of buildingSMART deliverables.


3.4       Main focus areas:

  • Sharing experiences: Sharing experiences with other members of buildingSMART is an important purpose of the group, as well as a prerequisite for supporting other buildingSMART activities, for example contributing to development of Information Delivery Manuals (IDM) or Model View Definitions (MVD). The User Group should stimulate its members to play an active role and act as a community, in which problems, questions, tips etc. should be exchanged and answered. Software vendors are welcome to provide information in relation to buildingSMART related issues.
  • Data: Stimulate members to share data (models, configuration etc.) with each other while still respecting ownership of the data.
  • Publish: The User Group should publish results, guidelines and other relevant material as widely as possible and as a minimum on the buildingSMART web site.


4.     Membership

4.1       All members of buildingSMART can join the Regional User Groups. A fee for participating in the groups can be collected by regional buildingSMART organizations. Typical members of the Regional User Group are organizations (private, public and academic), which are solely or mainly using buildingSMART deliverables in their activities, like using IFC for data exchange between IFC compatible software products.

4.2       Members of IUG

  • One appointed delegate from a Regional User Groups in each chapter.
  • 1 delegate - IFD Library Group
  • 1 delegate - IDM Co-ordinator
  • Members of UserCom.


4.3       The International User Group Chair and the International Council can take the necessary steps to exclude members from User Groups if they abuse their position or act in contravention of the intentions of the User Group Charter.


5.     UserCom

After the model of ExCom for IC, IUG has established UserCom. UserCom shall function as the IUG surrogate between IUG meetings, provided that it shall strictly adhere to the directives, policies and guidance of the IUG. All actions taken by the UserCom between IUG meetings, shall be recorded and submitted for ratification by the full IUG during its next regularly scheduled meeting.

Members of UserCom are:

  • IUG Chairman
  • Product Manager (liaison)
  • IDM Co-ordinator
  • ·Leader IFD Management Group
  • Chapter representatives

Members of UserCom are elected at the annual IUG-meeting.

6.     Processes

6.1       IUG employs a decision making process based on consensus. Consensus means that 80% of the chapters present have to agree on a proposal, based on a "one vote per chapter" basis. At least two thirds of all chapters need to be present in international meetings (including international telecons) in order to make decisions.

6.2       A "Proxy" may take the place of a delegate from a Regional User Group in a chapter, provided that a minimum advance notice of 48 hours is given by the UGC or the Chapter Chairman (email or fax).

6.3       Participation in IUG meetings include IUG members and invited guests.

6.4       Other buildingSMART members will be welcome to observe the meetings, but participation will be at the discretion of the chair.


7.     Role of the IUG Chair (IUGC)

7.1       The IUGC is appointed by IC at its biennial Spring meeting although the IUG may recommend a candidate.


7.2       The IUGC will represent the IUG in IC and be a member of ExCom.

7.3       The authority of the IUGC is a result of representing IUG.

7.4       The IUGC is responsible for the agenda of IUG meetings and telecons.

7.5       The IUGC acts as the primary facilitator for each meeting, meeting topic or telecon. The IUGC has to make sure that decisions requested by ExCom, Council or IUG itself are made.


[1]  buildingSMART International develop and maintain international standards for openBIM:

  • buildingSMART Processes (IDM)
  • buildingSMART Dictionary (IFD)
  • buildingSMART Data model (IFC)


Charter in pdf format