Version: 1.0
Summary:
Obtain target minus comparison SST data set statistics from the matchup data base.
The interface should provide flexible access to a range of analytical capabilities.
 Input: A matchup data set generated by Use Case #3.
 Output: Statistical representations of the target minus comparison data set SST values.
Preconditions:
Triggers:
Basic course of events:
 Define refinement parameters:
 nearest neighbor,
 average
 variance
 minmax difference
 Refine matchup
 Calculate target, comparison SSTtuples (1 SST value for the target data set and 1 for point or line data sets or N2 for N2 field data sets); e.g., using nearest neighbor, average, bilinear interpolation,...
 Calculate statistic associated with target and comparison matchups; e.g., variance, minmax difference, skewness,...
 Define filter (or stratify) parameters:
 space
 time
 refined statistic
 targetcomparison distance in space and time
 comparison data set
 Define statistical analyses;
 histogram differences
 mean and variance
 Apply statistical analyses on the refined matchup data set target minus comparison SST value; one difference for each of the N2 data sets in the matchup element.
 Output plots, tables
Alternative paths:
Postconditions:
Business rules:
Notes:
Author and date  SST Use Case Development Group 25 July 2007.
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