Tryton is a high-level general purpose application platform. It is the base of a complete business solution as well as a comprehensive health and hospital information system (GNUHealth).

The production outsourcing module allows to outsource production order per routing. When such outsourced production is set to waiting, a purchase order is created and its cost is added to the production.

To define an outsourced production, the routing must have a *Supplier*, a *Service* and its *Quantity* defined. Those values will be used to create the purchase order. The bought quantity is computed by multiplying the *Quantity* by the factor between the bill of material and the production quantity.