Database Structure

The Fabrication database structure descends from the World level (usually represented by the symbolic name /*). The administrative levels below this (and their PDMS abbreviations) are Department (ISODEP) and Registry (ISOREG).

The database level below Registry (and its PDMS abbreviation) is the Spool Drawing (SPLDRG), which is the main operational unit of the database. Each Spool Drawing can represent a continuous network of piping components and tube within the overall piping design The Spools and Fields that make up the Spool Drawing are held directly below it in the database hierarchy.

The Design database also descends from the World level, below which are the administrative sub-levels Site and Zone. In the case of piping design data, the lower administrative levels (and their PDMS abbreviations) are Pipe (PIPE) and Branch (BRAN).

Together, these hierarchic levels give the following overall format