ISO/IEC 16509:1999

1.1 Scope

This standard identies 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 elds used for

non-date purposes, and provides denitions of these terms and descriptions of these concepts.

This standard does not specically address operating system anomalies such as might occur in the year

2038.

1.2 Purpose

This standard provides a common lexicon with descriptions and denitions for the Year 2000 issue. These

descriptions and denitions may be applied in whole or in part depending on the requirement.

This standard is composed of a Denitions Clause (3), a Concepts Clause (4), and two Annexes (A and B).

1.2.1 Concepts

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.

1.2.2 Denitions

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 signicant amount of industry consensus. Along with the techniques is a list of supporting terms

and their explanation. In addition, the annex briey 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.

1.3 Conformance

Vendors who claim that their products conform to this standard declare that their use of the term Year 2000

Compliant is in accordance with the denition in this standard.