Design: BIM modeling is used in the design phase to create a 3D model of the building or infrastructure project. This model can be used to test different design options and see how they affect the project's performance. For example, an architect can use BIM to test different layouts, materials, and energy-efficient strategies to optimize the building's design.

Collaboration: BIM modeling is also used to facilitate collaboration between different teams involved in the construction project. With BIM, everyone involved in the project can access the same digital model and see how their work fits into the overall project. This helps to avoid conflicts and delays and improves communication among team members.

Cost estimation: BIM modeling is used to estimate the cost of a construction project accurately. By incorporating all of the project's physical and functional characteristics, BIM can provide a more detailed and accurate cost estimate than traditional methods. This helps project owners to better plan and budget for the project.

Construction: BIM modeling is used during the construction phase to guide the construction process. The digital model can be used to generate construction drawings, create 3D animations and simulations, and coordinate the installation of building components. BIM can also be used to identify and resolve conflicts between different systems, such as electrical and plumbing, before construction begins.

Maintenance: BIM modeling is also used for facility management and maintenance. The digital model can be used to create a "digital twin" of the building, allowing facility managers to track maintenance schedules, equipment performance, and energy consumption. This helps to identify potential maintenance issues before they become major problems and optimize building performance.