Single Source of Truth
One valid data basis that all parties refer to.
Single source of truth describes one valid data basis that all parties refer to. There is one state, and that state sits in one place.
The opposite is the norm in many organisations. Areas from the lease, dimensions from the construction drawing, asset lists from the CAFM and notes from the last walk-through. Four figures for the same question, and none of them holds.
At Energie AG Oberösterreich exactly this situation stood at the beginning: three contradictory data states. The capture produced a basis that holds equally for design, operation and controlling.
Technically, single source of truth does not mean everything sits in one application. It means there is one leading source and every other system derives from it.