Changing Fabrication Service/Spec/Material (which is very common) can be painful at best, or outright destructive and counterproductive at worst. One of the main reasons for this is the common practice of linking our Fabrication Services directly to a single Specification and/or Material. For example “SUPPLY AIR - GALVANIZED - 4"WG”. SMACNA and Piping Specifications don’t care about the “Service”. Neither should your Fabrication Database. In almost every scenario, what we really need to change is the Specification and/or Material, but we can’t because our Fabrication Database has our hands tied. Once we’ve broken these chains…
● Changing Service/Spec/Material becomes straight forward
● Comparing cost between two or more specifications/materials becomes much easier
● Interchangeable parts get the same Part Number
● "Design 2 Fab" becomes less of a joke
(There are no magic buttons that will convert a diagrammatical design intent model into a coordinated fabrication and installation intent model, at least not until SkyNet becomes self-aware.)
● Countless other reasons…