Discrete linear control theory is used in this research to examine the effects
of system choice and data errors on the performance of production control
systems. Two common information flow systems are modelled. These are
the Reorder Cycle (ROC) and the Material Requirements Planning (MRP)
systems. System choices include the choice of forecasting method, the
choice of delivery policy, and the choice of inventory rule. The source of
data errors include stock recording errors, delay in stock recording,
incorrect bills of material.
The other part of the research examines the sequence of implementing a
new production control system. Different ways of moving from a Reorder
Cycle to a Material Requirements Planning system are studied. Guidelines
for an implementation sequence are produced.
A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy of Loughborough University.