ME.19:1 - Problem Frame

An account of professional Method change relates variants recorded in successive sources to changes in institutions, tools, regulation and local Work. It examines deliberate redesign, diffusion, fashion, retention and loss. Questions about variants and selection help develop competing accounts. Process-tracing research supplies methods for examining the sequence within a case, rival explanations and diagnostic observations.

For causal reliance on either contribution, use C.28. A plausible sequence can support description and hypothesis while leaving an interventional claim unsupported. The pattern therefore separates differentiation, causal support, and current choice.