A-Spec Proposed Changes

A-SPEC Proposed Changes







New versions of D-Spec, R-Spec, O-Spec, B-Spec, S-Spec and W-Spec and the companion document A-SPEC, are now available to A-SPEC members for download. These versions will become the applicable versions from 3 December 2018.

Please note that we have provided a Change Log indicating the changes applied since 10 September 2018 release of each specification. This can be downloaded here.


Download the new A-SPEC Requirements Document Version 2.0.1 Final here

Download the new A-SPEC Codelist Version 1.0.1 here


Download the new D-Spec Specification Version 9.0.1 Final here

Download the new R-Spec Specification Version 3.0.1 Final here

Download the new O-Spec Specification Version 3.0.1 Final here

Download the new B-Spec Specification Version 2.0.1 Final here

Download the new S-Spec Specification Version 2.0.1 Final here

Download the new W-Spec Specification Version 2.0.1 Final here


A-SPEC is regularly updated to meet the A-SPEC Community changing needs. Changes may be driven by the introduction of new technology and or emerging A-SPEC Community expectations.

Changes are initiated by suggestions from the A-SPEC Community and through research undertaken by GISSA.

No changes are introduced into the A-SPEC Specifications without full consultation with the A-SPEC Community. A-SPEC Community members will be contacted directly for comment on relevant proposed changes.

Contact us for information relating to proposed changes to any of the specifications.