Building Information Modelling (BIM) is a digital process that involves creating and managing a 3D model of a building or infrastructure project. BIM allows architects, engineers, and construction professionals to collaborate on a project by sharing information about the design, materials, and construction processes. BIM models can include information about the building's geometry, spatial relationships, building systems, and other features such as lighting and acoustics. The models can also be used to simulate and analyze the performance of the building under different conditions such as temperature, wind, and occupancy. BIM is designed to improve the efficiency and accuracy of the construction process by reducing errors, minimizing waste, and improving collaboration between different stakeholders. It also allows for better communication and visualization of the design to clients, contractors, and other stakeholders. BIM has become increasingly popular in the construction industry in recent years, and many countries have implemented BIM standards and regulations for public infrastructure projects.