The goal of the Contrails project is to help preserve and disseminate the technical record of 20th century aerospace research, highlighting in particular the research endeavors of the Illinois Tech community.

Error Control Methods for an Automatic Checkout System

Report Number: AMRL TDR 64-17
Author: Theodore S. Lewis; Walter J. Huebner
Corporate Author: IIT Research Institute
Laboratory: Behavioral Sciences Laboratory
Date of Publication: 1964-03
Pages: 156
Contract: AF 33(657)-10271
Project: 7184
Task: 718404
PB Number: PB129667
AD Number: AD0607735

The development of error control techniques for the mancomputer interface of an automatic checkout system is presented. To minimize human error in man-computer communication in the automatic checkout complex precedence and connection matrix techniques for use with total and partial simulation methods were developed to detect errors in operational automatic checkout computer programs. Precedence and connection matrix techniques for use with total simulation methods were incorporated into a simulation computer program which comprised a total simulation of the computer which controls an operational automatic checkout system. The modified simulation was then used to process several computer runs of an operational automatic checkout computer program. The basic conclusions were that precedence and connection matrix techniques used with total and partial simulation methods can be useful in detecting errors in operational computer-controlled automatic checkout systems.

RAF Centre of Aviation Medicine
Download this report

(PDF, 4.44 MB, 156 pages)

Other options for obtaining this report

Via the Defense Technical Information Center (DTIC):
A record for this report, and possibly a full-image download of the report, exists at DTIC

Via National Technical Information Service:
This report may have been digitized and made freely available for public download, or made publicly available for purchase by the National Technical Information Service through their online database, the National Technical Reports Library

Indications of Public Availability
A PB Number, PB129667 , exists for this report, indicating public availability of the report at time of publication

No digital image of an index entry indicating public availability is currently available
The inside cover of this report indicates that it was released for public sale
The original price to the public, according to the cover, was 3