- Short-Interval Schedular
- Short-Interval Schedular (SIS) - A computer program used to forecast mail volume. It helps supervisors make same-day operating decisions.
Glossary of postal terms. 2014.
Glossary of postal terms. 2014.
SIS — Short Interval Schedular (SIS) A computer program used to forecast mail volume. It helps supervisors make same day operating decisions … Glossary of postal terms