Data-Driven Digital Twin Requirements for Additive Layer Manufacturing Essam Shehab, Assel Jumassultan, Nurgabyl Khoyashov, Shynar Juziyeva, Nursultan Jyeniskhan and Md Hazrat Ali MATEC Web Conf., 401 (2024) 02012 Published online: 27 August 2024 DOI: 10.1051/matecconf/202440102012