ISO 5964 was the ISO standard for the establishment and development of multilingual thesauri. Its full title was Guidelines for the establishment and development of multilingual thesauri. It was withdrawn in 2011, when replaced by ISO 25964-1. See more explanation on the official website for ISO 25964 
Documentation is a set of documents provided on paper, or online, or on digital or analog media, such as audio tape or CDs. Examples are user guides, white papers, on-line help, quick-reference guides. It is becoming less common to see paper (hard-copy) documentation. Documentation is distributed via websites, software products, and other on-line applications.
Professionals educated in this field are termed documentalists. This field changed its name to information science in 1968, but some uses of the term documentation still exists and there have been efforts to reintroduce the term documentation as a field of study.ISO 25964
ISO 25964 is the international standard for thesauri, published in two parts as follows:
ISO 25964 Information and documentation - Thesauri and interoperability with other vocabularies
Part 1: Thesauri for information retrieval [published August 2011]
Part 2: Interoperability with other vocabularies [published March 2013]
It was issued by ISO, the International Organization for Standardization, and its official website is maintained by its secretariat in NISO, the USA National Information Standards Organization. Each part of the standard can be purchased separately from ISO or from any of its national member bodies (such as ANSI, BSI, AFNOR, DIN, etc.). Some parts of it are available free of charge from the official website.ISO 2788
ISO 2788 was the ISO international standard for monolingual thesauri for information retrieval, first published in 1974 and revised in 1986. The official title of the standard was "Guidelines for the establishment and development of monolingual thesauri".
It was withdrawn in 2011 and replaced by ISO 25964-1.List of International Organization for Standardization standards, 5000-7999
This is a list of published International Organization for Standardization (ISO) standards and other deliverables. For a complete and up-to-date list of all the ISO standards, see the ISO catalogue.The standards are protected by copyright and most of them must be purchased. However, about 300 of the standards produced by ISO and IEC's Joint Technical Committee 1 (JTC1) have been made freely and publicly available.Thesaurus (information retrieval)
In the context of information retrieval, a thesaurus (plural: "thesauri") is a form of controlled vocabulary that seeks to dictate semantic manifestations of metadata in the indexing of content objects. A thesaurus serves to minimise semantic ambiguity by ensuring uniformity and consistency in the storage and retrieval of the manifestations of content objects. ANSI/NISO Z39.19-2005 defines a content object as "any item that is to be described for inclusion in an information retrieval system, website, or other source of information". The thesaurus aids the assignment of preferred terms to convey semantic metadata associated with the content object.A thesaurus serves to guide both an indexer and a searcher in selecting the same preferred term or combination of preferred terms to represent a given subject. ISO 25964, the international standard for information retrieval thesauri, defines a thesaurus as a “controlled and structured vocabulary in which concepts are represented by terms, organized so that relationships between concepts are made explicit, and preferred terms are accompanied by lead-in entries for synonyms or quasi-synonyms.”
A thesaurus is composed by at least three elements: 1-a list of words (or terms), 2-the relationship amongst the words (or terms), indicated by their hierarchical relative position (e.g. parent/broader term; child/narrower term, synonym, etc.), 3-a set of rules on how to use the thesaurus.
ISO standards by standard number