Building Information Modeling (BIM) is a digital representation of a building's physical and functional characteristics. It allows architects, engineers, and construction professionals to create and manage a 3D model that includes detailed information about materials, dimensions, and systems. This collaborative approach improves communication and efficiency throughout the project lifecycle. BIM enhances project planning and execution by enabling real-time updates and simulations. Stakeholders can visualize the project, identify potential issues, and make informed decisions before construction begins. This reduces errors, saves time, and ultimately leads to more sustainable and cost-effective building practices.