Internationl standard to dating documents
The first document that is produced for example for audio and video coding standards is called a verification model (VM) (previously also called a "simulation and test model").
When a sufficient confidence in the stability of the standard under development is reached, a working draft (WD) is produced.
These are designated using the format ISO[/IEC] [/ASTM] [IS] nnnnn[-p]:[yyyy] Title, where nnnnn is the number of the standard, p is an optional part number, yyyy is the year published, and Title describes the subject.
yyyy and IS are not used for an incomplete or unpublished standard and may under some circumstances be left off the title of a published work.In this procedure a document is submitted directly for approval as a draft International Standard (DIS) to the ISO member bodies or as a final draft International Standard (FDIS) if the document was developed by an international standardizing body recognized by the ISO Council.The first step—a proposal of work (New Proposal) is approved at the relevant subcommittee or technical committee (e.g., SC29 and JTC1 respectively in the case of Moving Picture Experts Group – ISO/IEC JTC1/SC29/WG11).They are generally issued with the expectation that the affected standard will be updated or withdrawn at its next scheduled review. National Committee, the International Electrotechnical Commission) are made freely available.ISO documents are copyrighted and ISO charges for most copies. A standard published by ISO/IEC is the last stage of a long process that commonly starts with the proposal of new work within a committee.
Technical specifications may be produced when "the subject in question is still under development or where for any other reason there is the future but not immediate possibility of an agreement to publish an International Standard".