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FRAM Extended Browning-Eppinger Simulation (FEBS): A Multidimensional Coupling Model for Functional Resonance Risk Assessment
Grazzini, Daniele
Type:
Year:
2026
Editor:
Langner, Christopher; Kreimeyer, Matthias; Panarotto, Massimo; Cascini, Gaetano; Browning, Tyson R.; Eppinger, Steven D.; Yassine, Ali A.
Author:
Series:
DSM
Institution:
Università Telematica Internazionale UNINETTUNO, Italy
Page(s):
011-020
DOI number:
ISBN:
NA
ISSN:
NA
Abstract:
Product development processes and sociotechnical systems share a common challenge: understanding how variability propagates through interdependent activities and amplifies into unexpected systemic outcomes. The Browning-Eppinger (B-E) model provides a stochastic framework for process risk assessment via DSM but reduces inter-activity dependencies to scalar rework probabilities, discarding the multidimensional structure of sociotechnical couplings. The Functional Resonance Analysis Method (FRAM) captures this structure through six coupling aspects yet lacks a quantitative simulation framework. This paper proposes the FRAM-Extended Browning-Eppinger Simulation (FEBS), which replaces the B-E scalar weight with a six-dimensional coupling vector aligned with FRAM aspects, introduces a threshold-based activation function, and derives a Functional Resonance Risk Index (IRR) generalizing B-E interface criticality. Sensitivity analysis on a synthetic airport turnaround demonstrates that the IRR ranking is robust across 9 parametric scenarios, identifying resonance nodes undetectable by scalar DSM analysis. The IRR quantifies resonance risk from local structural properties, not global emergent resonance.
Keywords:
