Building information modeling (BIM) is a process of digitally capturing and documenting the physical and functional characteristics of a facility during the design and construction process and beyond. It is a collaborative process that allows for the integration of all project participants and stakeholders. BIM can extend the three primary spatial dimensions (width, height and depth) by incorporating information about time and cost, known as 4D/5D schedule simulations, and can also extend to asset management and sustainability. It offers the ability to create and maintain highly accurate virtual representations of spatial and geospatial information, as well as quantities and properties of building components. It allows a range of collaborative processes relating to the built asset from initial planning through construction and then throughout its operational life.