A node in an upstream tree.



The process (and product or waste flow) to which this upstream result is related.


The total result at the point of the supply chain represented by this node. This includes upstream and direct contributions.


The direct contribution of the process at this point of the supply chain.


The required amount of the process product that is needed at this point of the supply chain to fulfill the demand of the calculated system. This value is given in the reference unit of the respective product flow.

Python class stub

The snippet below shows the names of the properties of the corresponding Python class of the olca-schema package. Note that this is not the full class definition but just shows the names of the class and its properties.

class UpstreamNode:
  direct_contribution: float
  required_amount: float
  result: float
  tech_flow: TechFlow