B.4:1 - Problem Frame

The FPF is built on the Principle of Open-Ended Evolution (P-10): continued use can reveal reasons to adapt a System, an episteme, a Method, or a description. The useful commonality is a repeated move from use through an observed basis and an explicit change back to use. The identity question is not common. The same subject may continue through a change, a successor may be identified, or later dated Work may be a distinct occurrence rather than a revision of earlier Work. B.4 therefore supplies a shared cycle only after the relevant subject pattern has supplied that distinction.