Enron Mail

From:jeff.duff@enron.com
To:mark.walker@enron.com, mark.fisher@enron.com
Subject:List of Validation Categories
Cc:
Bcc:
Date:Fri, 17 May 2002 06:27:00 -0700 (PDT)

These are the levels of validation used to identify wind data in WIMS. Most
data is stored at level 2, and cared through 3-4 during an analysis.


1. General range checking used to identify and flag outliers so that data can
be quickly processed for a rush report.
2. Pass data through WIMS (Wind Information Management System) validation
routine to identify and flag out-of-range values, unusual shear, sticking
sensors, etc.
3. Same as step 2, but passed through the validation routine a second time OR
data scrutinized by additional analysis methods OR data analyzed by more than
one staff member.
4. Imputing data. Replace flagged data with "false" but reasonable data
obtained from historical archives, a best fit curve,or some other form of
imputation etc.

-JD