DAVID SLATER
FRAM METHODOLOGY DEVELOPMENT GROUP
FRAMILY 2025
OUTLINE
Hollnagel revolutionised our ability to probe behaviours in complex sociotechnical systems with three key developments.
Introduced a metamodeling (abstraction) approach to model systems as FUNCTIONS. (not detailed physical components)
Recognised that the system behaves as an INTERACTING INTERDEPENDENT ASSEMBLY of these functions, not as a rigid array of isolated components.
Pointed out that in the real world VARIABILITY in these interactions can lead to unexpected consequences. His FRAM methodology now allows quantitative prediction of this variability of functional outputs leading to emergent system behaviours.