手法を比較

	General Morphological Analysis	Field Anomaly Relaxation
分野	Futures Foresight Studies	Futures Foresight Studies
系統	Process / pipeline	Process / pipeline
提唱年	1969	1974
提唱者	Fritz Zwicky; formalized by Tom Ritchey	Russell Rhyne
種類	Combinatorial problem-structuring pipeline for multi-dimensional, non-quantifiable problems	Morphological scenario-construction pipeline based on anomaly reduction and sequencing
原典	Ritchey, T. (2011). Wicked Problems - Social Messes: Decision Support Modelling with Morphological Analysis. Springer.	Ritchey, T. (2011). Wicked Problems - Social Messes: Decision Support Modelling with Morphological Analysis. Springer.
別名	GMA, Morphological Analysis, Zwicky Box, Morphological Field Analysis	FAR, Field Anomaly Relaxation Method, Rhyne FAR, Sectoral Morphological Scenario Method
関連	3	3
概要	General morphological analysis (GMA) is a method for structuring and exploring the total set of possible configurations of a complex, multi-dimensional problem that cannot be reduced to numbers. Devised by the astrophysicist Fritz Zwicky in the mid-twentieth century and formalized for policy and futures work by Tom Ritchey, it begins by laying out a problem as a 'morphological field' — a set of parameters, each with several discrete value-states — whose combinations define every conceivable solution. Because that combinatorial space is usually enormous, the method's decisive step is cross-consistency assessment: experts judge every pair of states for internal contradiction, and contradictory pairs prune the field down to a far smaller set of internally coherent configurations that can actually be examined.	Field anomaly relaxation (FAR) is a morphological scenario-construction method developed by Russell Rhyne in the 1970s for picturing how a whole societal or strategic system might evolve over time. It describes the situation through a small set of sectors — broad dimensions such as governance, technology, or values — each characterized by several alternative states, and arrays them as a morphological field whose combinations represent possible 'snapshots' of the system. Many of those combinations are internally inconsistent, so FAR 'relaxes' the field by removing anomalous configurations, leaving only coherent states of the world. Its distinctive final move is temporal: the surviving configurations are sequenced into plausible paths of change, producing scenarios as journeys from the present through a chain of consistent future states.