From BIM Toward Digital Twin: Step by Step Construction Industry Is Becoming Smart

From (BIM) Building Information Modeling toward (DT) Digital Twin technology. The construction industry climes on its digital age by using the 3D modelling and integrating new technologies as (IoT) Internet of Things, (AI) Artificial Intelligence and cloud-computing to create a connected living virtual world, with updated real time data, where projects can be designed, controlled and lifecycle managed, the purpose of this state of art is to highlight updates works and researches on digital twin definition in different industries, then its properties are described, so that the relation between DT and BIM is given by presenting the uses of each technology and lastly concluded by some reflections towards feature researches.