The dependency relation between products in a supply network, characterized by the (partial) consumption of one product for the creation of another. This does not necessitate that a product becomes part of a (physical) presence of the created product. Such examples are chemicals used for cleaning in the manufacturing of microchip or a foundry service (time)slot. Neither example becomes a microchip, but without them, no new microchip are created. The derivation usually expresses the relation between two products, but may include multiple psn:from properties to express alternatives.

Derivation