System Modelling

How do I build a model in TianGong LCA?

1. Create or select the required unit processes in My Data → Processes, ensuring inputs and outputs are complete.
2. Open My Data → Models, click +, and add the processes to the canvas.
3. Connect inputs and outputs, set the reference process, and define the reference flow quantity.
4. Save the model—see Create My Data for the full workflow.

How does TianGong LCA differ from other LCA platforms?

Aspect	TianGong LCA	Traditional desktop tools (SimaPro, GaBi, Umberto, openLCA, etc.)
Data management	Cloud-native with team collaboration and review workflows	Primarily local projects; collaboration often manual
Model construction	Assemble processes from shared repositories; publish to teams	Typically import or maintain private databases
Data format	Uses the open TIDAS JSON schema for transparency and integration	Proprietary database formats
Version control	Built-in drafts, history, and status tracking	Depends on external file management

Can I interoperate with other software?

• JSON export: Download datasets as TIDAS JSON, then map fields for import into other tools.
• MCP integration: Use the TianGong MCP services to call datasets from external applications.
• Caveats: Unit names and property definitions may differ between systems; plan for a mapping or conversion step.

For bespoke integration or enterprise requirements, contact the TianGong team for partnership options.