Toyota is successful at lowering overhead cost because of these
factors :
- High machine uptime/ Low machine downtime. Downtime is the
percentage of time that the plant/equipment/machine is idle.
Conversely, uptime is the percentage of time that the
plant/equipment/machine is up and running
- Low work-in-process inventory. The amount of time that the raw
material is work-in-process is low compared to competition. This
lowers the working capital requirement, storage costs, etc. and
therefore lowers the overall overhead cost
- More decentralized and flatter organizational structure. This
empowers factory workers to contribute actively towards process
improvements
- Focusing on process improvements by hiring more process
engineers/R&D engineers
- Focusing on process improvements by making multi-functional
teams work on improving machine performance/machine uptime/process
yield
- Using quality raw material so that time spend on fixing defects
is reduced
- Each employee has exposure to all stages of the production
process through a policy of rotation. This way, every employee is
multi-skilled and has a good understanding of the overall
production process.
- Production engineers, purchase managers, machine operators who
are involved in active production are involved actively in design
of the production line