Frozen Zone

In information technology, a frozen zone is a period in which no changes are made to the software or hardware used.

In this way, an unintentional, negative influence on the running system is to be avoided, which can occur, for example, through unexpected side effects . At the same time, the uninterrupted availability of the system should be guaranteed.

Therefore, Frozen Zones are primarily set up during those periods when they are used the most by their users . In accounting programs, this tends to be the end of the quarter or year .

Such changes that are not made during the Frozen Zone include:

• the installation of updates or upgrades
• making configuration changes
• Conversion and expansion of computer network or server resources

As a rule, exceptions are those interventions that are intended to correct a production-inhibiting error in the software or hardware and that cannot be postponed due to their urgency.

literature

• David Turbide: Why Systems Fail: And How to Make Sure Yours Doesn't . Industrial Press, New York 1996. ISBN 0-831130-59-8 , pp. 163-165, ( Google Books ).
• Nigel Slack: The Blackwell Encyclopedic Dictionary of Operations Management . Blackwell Publishing, Cambridge 1999, ISBN 0-631210-82-2 , pp. 110-112, ( Google Books ).