CEC SDG Glossary of Terms - cectests.org

d.f. See degrees of freedom Data Depository A centralized web-based electronic database for the storage, visualization and retrieval of test monitoring data.This is the ATC-ERC database for engine tests and the CEC-TMS database for all other tests that have test monitoring systems.All reference test data should be uploaded. The ATC-ERC database also stores candidate test results.

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