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phased preservation

n. ~ A preservation management technique that emphasizes actions that have the greatest impact on the preservation of collections as a whole, rather than concentrating on treating individual items.

Notes: 

Phased preservation includes surveys to establish priorities, disaster planning, environmental controls, and holdings maintenance.

Citations:
(UNESCO A/V Glossary 2001) (phased conservation) A concept developed at the Library of Congress, originally conceived to meet the short-term needs of items that would eventually be given full conservation treatment. Surveying is an important aspect of phased treatment; items are categorized by certain characteristics or conservation problems so that they may later be retrieved for treatment.