There are no universal incentive schemes spread across many industries. The incentive plan has to be unit specific and it depends on multiple factors like production capacity, level of utilisation achieved, cash generated, rejection or rework quantum, no. of direct workmen involved, no. of indirect workmen involved (like maintenance, store, materials management, sales etc) and office staff etc. As regards incentive plan while the direct workmen will have payment linked to direct to their efficiency, the output of indirect as well as office staff may not be directly measurable and certain other index has to be used. So all these factors have to be studied in depth before any incentive is planned and you may need expert service of Industrial Engineering. From the HR point of view, the general idea is to share with employees the extra gains of additional production achieved as a result of implementation of incentive plan.