Chapter 2: An Overview of BIM

This Chapter considers what Building Information Modelling and/or what Building Information Management (BIM) is, and what the benefits and drawbacks of BIM are. The use of a virtual computerised 3D model, forming a shared knowledge resource for information about the built asset, providing data that can collected, managed and used for a variety of reasons is considered in this Chapter as is other digital construction developments such as smart devices, the Internet of Things, smart buildings and structures, smart cities, and Digital Twins. The benefits and the challenges of BIM are considered in this Chapter, and also the need to manage the expectations as to what BIM can achieve is noted. The need for collaboration is also highlighted in this Chapter, and definitions of the many technical terms and acronyms related to BIM are also provided.