Developed by the U.S. Bureau of Labor Statistics, TPL is a flexible natural language computer package that can be used to simplify the preparation of tables of data for annual library reports. Data on interlibrary loan transactions are used to construct sample tables illustrating program features. Two references are listed. (RAA)

A mathematical model was used to consider alternative request routing policies for use in the Illinois Library and Information Network. Given data on interlibrary loan demands, the probability of request success, processing and delivery times for various libraries, and a network request routing policy, the model predicted the probability of…