Webtrends Analytics 9 Adminstration Guide, November 2012
Standard lookup tables are typically used to help make custom reports and URL Parameter Analysis reports more readable and concise. If the information captured during analysis includes long or unintelligible strings that are not immediately readable to report users, you can provide a lookup table to translate this information into a readable form. This can help reduce the size of the report and makes the information easier to review.
You can specify a CSV file, a text file, or (for custom reports only) a SQL database.
Webtrends processes lookup tables for custom reports differently than URL Parameter Analysis. The following sections provide more detailed information about how each type of translation works.