TIDAS · TianGong Data System
Save, check, and exchange LCA data with one shared set of rules
TIDAS defines how processes, flows, units, sources, and their references are stored in a shared data structure. This makes LCA data easier to save, check, convert, and exchange across teams and software. It does not replace professional judgement about the system boundary, allocation, data quality, or review.
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Start with your current task
Choose the closest task. Open the glossary whenever an LCA term is new to you.
Learn what TIDAS is
See the problem TIDAS solves and how it relates to LCA methods, tools, and data resources.
See how data is organized
Learn how processes, flows, units, sources, and links are recorded consistently.
Check or convert data
Use TIDAS tools to check file structure and links, or convert between TIDAS and eILCD.
Look up terms and abbreviations
Find plain explanations of LCA, LCI, LCIA, functional units, system boundaries, and more.
New here? Understand TIDAS in two minutes
Learn what TIDAS can organize and exchange—and which LCA decisions still need professional judgement.