The electronic version of this International Standard can be downloaded from the ISO/IEC Information Technology Task Force (ITTF) web site
This standard identiÞes terms and concepts pertinent to the resolution of the Year 2000 issue, including the
rollover from the year 1999 to 2000, incorrect recognition of leap years, and values in date Þelds used for
non-date purposes, and provides deÞnitions of these terms and descriptions of these concepts.
This standard does not speciÞcally address operating system anomalies such as might occur in the year
This standard provides a common lexicon with descriptions and deÞnitions for the Year 2000 issue. These
descriptions and deÞnitions may be applied in whole or in part depending on the requirement.
This standard is composed of a DeÞnitions Clause (3), a Concepts Clause (4), and two Annexes (A and B).
A concept is a set of interrelated ideas pertaining to the Year 2000 issue. This standard offers a description of
these concepts. This is not an exhaustive list.
These are focused meanings of terms fundamental to the resolution of the Year 2000 issue.
1.2.3 Annex A
This annex outlines remediation techniques currently being used to make system elements Year 2000 compliant.
This list of techniques is not exhaustive. It presents only those techniques acknowledged as having
gained a signiÞcant amount of industry consensus. Along with the techniques is a list of supporting terms
and their explanation. In addition, the annex brießy explains the role of special dates in the development of
solutions for the Year 2000 problem. This annex is informative.
1.2.4 Annex B
This is a bibliography listing other related publications.
Vendors who claim that their products conform to this standard declare that their use of the term ÒYear 2000
CompliantÓ is in accordance with the deÞnition in this standard.
Status: PublishedPublication date: 1999-10
Edition: 1Number of pages: 8
Technical Committee: ISO/IEC JTC 1/SC 22 Programming languages, their environments and system software interfaces
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