Short answer

A shared information model gives every data point an identity and context. This reduces manual work and makes information reusable across systems and over time.

A modern building produces large amounts of data. Its value depends not on how much is collected, but on how well the information can be understood and reused.

Without a shared structure, every system, supplier and project has to interpret the building's information again. This leads to manual work, uncertainty and costly bespoke solutions.

An information model gives each data point an identity and context: what it represents, where it is located and which functions it affects. A shared language makes troubleshooting easier, enables functions to be reused and allows future technology to connect without rebuilding the entire foundation.