Status: IN
The recursive subsystem's fully engineered bidirectional processing (NullIterator-enabled traversal plus Chain-of-Responsibility routing) operates within the convergently validated composition paradigm: the patterns driving this subsystem — Composite, Iterator, Chain of Responsibility — achieve their architectural contributions primarily through object composition rather than inheritance, consistent with composition's status as the validated default reuse paradigm. This makes the recursive subsystem a notable subsystem-scale demonstration of composition-based design, though the bounded exception for inheritance (as defined by Template Method) remains acknowledged as part of the broader paradigm.
Recursive subsystem infrastructure layers uniformly instantiate the composition paradigm
Depends on (SL): recursive-subsystem-bidirectionally-engineered, composition-paradigm-convergent-and-scalable-with-bounded-exception