Calculate

Calculating a product system produces its life cycle inventory and impact assessment results. You can customize the calculation according to your requirements: you can choose the allocation method, the impact assessment method, normalization and weighting set, the calculation type (lazy, eager or Monte Carlo simulation) or whether to include regionalized calculations, cost calculations or data quality.

Source: openLCA 2 manual — Calculation and Result Analysis

The calculation pipeline ProductSystem life cycle model ImpactMethod ImpactCategory → ImpactFactor CalculationSetup SystemCalculator LcaResult total impacts · inventory · contributions system withImpactMethod calculate() returns

A ProductSystem and an ImpactMethod feed a CalculationSetup; SystemCalculator runs it and returns an LcaResult.