Abstract:
Themost crucial factor in apparel manufacturing
is catering for due dates. The unoptimized, ad-hoc scheduling
and static routing of Production Orders (POs) result in late
deliveries of orders. The inability to analyze the available presewing
capacity against the demand results in last moment
revelation of resource over utilization. This study proposes a
systematic approach in analyzing pre-sewing capacity against
the demand.A mathematical model in estimating pre-sewing job
completion times for six chosen pre-sewing departments is
proposed. Operation Flexibility and Routing Flexibility in presewing
section are analyzed and integrated in scheduling
through Precedence Diagramming Method (PDM) and priority
scheduling algorithm. An optimized scheduling approach with a
simulationmodel to facilitate the visibility of resource utilization
and PO completion times is adopted. The simulation model
provides approximated PO completion time with optimized
criterion, provides measures on resource utilization and queue
wait times, thus facilitating proactive measures for the
management at an early stage of the production.
