M. Bonney et al., EFFECT OF ERRORS AND DELAYS IN INVENTORY REPORTING ON PRODUCTION SYSTEM PERFORMANCE, International journal of production economics, 35(1-3), 1994, pp. 93-105
A discrete linear control representation has been used by the authors
to examine the performance of multi-level, multi-product production co
ntrol systems operating in an environment where system errors are expe
cted. The basic method was reported in [1] and its use to examine syst
em structures and system implementation sequences was discussed in [2]
. Production control systems operate in an uncertain environment. Besi
des the commonly considered uncertainties in demand, yield, quality an
d delivery times, errors frequently exist in basic data such as bills
of materials and occur in stock records as a result of incorrect or la
te transaction recording. This paper presents the basic discrete linea
r control representation of MRP and ROC systems, shows how these repre
sentations may be modified to include certain types of internal system
error, before examining the effects of delays in stock recording and
of recording errors on the performance of the system. Performance meas
ures include the effects on schedules, planned stock and delivery perf
ormance.