A digital twin is a virtual representation of a physical object, system, or process, created using real-time data and advanced modeling techniques. It serves as a dynamic digital counterpart that mirrors the characteristics and behavior of its physical twin, allowing for better understanding, analysis, and optimization. Digital twins utilizes data from sensors, IoT devices, and other sources to continuously update and reflect the current state of the physical entity. Building library of components and connecting them digitally to equipment through sensors to read real-time operational information. In building management, digital twins facilitate maintenance, energy management, and lifecycle assessments.