IWMS, CAFM or CMMS system installations need always up-to-date building and inventory data. By introducing Operational BIM this data becomes accessible for already existing buildings and newly built ones. Both gathering and keeping it up-to-date is fast and easy, which ensures it can be built into the everyday workflows accessing it on-site and in the office. Reduced maintenance downtimes, accurate surface information highly increasing the operation performance which means an amount of saving that is comparable to the original construction cost of the building during its operation period.