This document provides background on the workings and an application of the DISCRETE edit system. The system is a prototype whose purpose is to demonstrate the viability of new Operations Research (OR) algorithms for edit generation and error localization. While the OR algorithms are written in a general fashion that could be used in a variety of systems, the i/o, data structure, and imputation sections of the code are written in a survey-specific fashion. The source code cannot easily be ported to a variety of computer systems and is not easy to maintain. The first two sections consist of a description of the basic edit system and an example showing specific details of the input and output files used by the software. The final section is a summary.