B.1.2:9 - Rationale

System aggregation is the place where holonic thinking is most tempting and most useful. It is also where false parthood is easy: anything connected, measured, represented, or controlled can be drawn inside a system box.

B.1.2 preserves the engineering payoff by coordinating exact subject-pattern results for recognition, parthood, assembly, delimitation, crossings, function, bearer, characteristic, evidence, and description. It selects one ordinary A.22 structure only when their joint organization changes the named decision.