Changes to engineering artifacts may come from backflows in the engineering process due to changed requirements, errors found in the engineering design, or feedback from tests, simulations, and operation.

Biffl, S.; Lüder, A.; Rinker, F.; Waltersdorfer, L. & Winkler, D. Biffl, S.; Eckhart, M.; Lüder, A. & Weippl, E. (Eds.) Engineering Data Logistics for Agile Automation Systems Engineering: Requirements and Solution Concepts with AutomationML 8 Springer, 2019 , 37 [CDL-SQI]