Comparing logical structures

A logical structure (LBOM) contains GDE lines that represent signals and connections, as well as items and items revisions. Teamcenter compares GDE lines using their names, signals and connections. When necessary, it compares signals using their source port and destination port attributes. (Not all lines in a logical structure have source and destination ports.) For such structures, Teamcenter uses single level, multilevel, and lowest level modes to compare the following properties: Item ID for item lines Revision for item lines Name for GDE lines Endpoints for connections Source, target, and transmitter lists for signals and process variables Process variable associations for signals Quantity for functionalities To allow comparison of two different configurations or views of the same LBOM structure, Teamcenter supports occurrence-based and nonoccurrence-based comparisons in single-level and multilevel modes.