- Marketing & sales support – provide credible numbers to back claims
- Product compliance & tenders – meet regulatory or buyer requirements
- R&D comparisons – choose materials or processes with lower impact
- Reporting – support sustainability disclosures and metrics
- Supply chain optimization – find hotspots and reduce risk
Define goal and scope📝
Write why you are doing the study and how results will be used. Include lifecycle coverage and processes in scope.
Set the unit⚖️
Use a functional unit for fair comparisons. Use a declared unit when the product’s function is not defined.
Collect primary data and list assumptions🧾
Gather primary data where possible and document assumptions transparently.
Model, find hotspots, check sensitivities🔍
Build the model, identify key hotspots, and run simple sensitivity checks.

