The implementation of digital technologies in the chemical process industry presents unique challenges and opportunities due to the inherent complexities of chemical processes. Unlike simpler manufacturing systems, chemical processes are governed by intricate thermodynamic, kinetic, and transport phenomena, making their digitalization a highly specialized endeavor. This chapter delves into the underlying concepts and technical nuances involved in embedding digital technologies within the chemical industry, providing a balanced perspective between purely data-driven analysis and physics-based modeling approaches.