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A System for Updating Time-Based Database Data
Chen Chen
April 2007
Advisor: Dr. Joe Brownsmith
| The Eastern Forest Environmental Threat
Assessment Center (EFETAC) and the National Environmental
Modeling and Analysis Center (NEMAC) Collaborative (ENC)
have undertaken a project involving the design and
implementation of a large database of text, maps, and images
related to forest threats. Some of this information is
time-sensitive in that it becomes obsolete and needs to be
reloaded from Forest Service Web servers. A manual system
for keeping the database current is not practical due to the
large volume of data anticipated. An automated system for
detecting obsolete data and obtaining updates is described.
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