Table 1. IRRS core components Component... | Emerald Publishing

Table 1.

IRRS core components

Component	Function
Simulation engine	Executes realistic, threat-informed incident scenarios (table-top or live emulation) that mirror sector-relevant SME threat profiles and are maintained under version-controlled manifests for reproducibility
Scenario-specific evaluation	Assesses participant response to a selected scenario using the Scenario Risk Index (SRI), the scenario weighting guide and a standardised sub-metric scoring scale (0–5). Integrates context-specific risk weighting with evaluator observations to ensure relevance and proportionality
IRRS scoring model	Aggregates scenario scores into a weighted, normalised readiness score (0–100) using predefined sub-metrics across five domains. Designed to enable cross-scenario benchmarking and longitudinal tracking of response capability
Maturity curve classification	Tiered classification that maps IRRS scores into discrete readiness bands and surfaces longitudinal trends across repeated simulations
Instrumentation bus	Passive hooks that record security-tool invocations and human hand-offs during simulations, validating both tooling integration and team-dynamic factors
Feedback and improvement actions	Converts simulation findings into targeted remediation guidance across tooling, procedures and team coordination. Enables iterative readiness uplift and validation of improvement over time

Component	Function
Simulation engine	Executes realistic, threat-informed incident scenarios (table-top or live emulation) that mirror sector-relevant SME threat profiles and are maintained under version-controlled manifests for reproducibility
Scenario-specific evaluation	Assesses participant response to a selected scenario using the Scenario Risk Index (SRI), the scenario weighting guide and a standardised sub-metric scoring scale (0–5). Integrates context-specific risk weighting with evaluator observations to ensure relevance and proportionality
IRRS scoring model	Aggregates scenario scores into a weighted, normalised readiness score (0–100) using predefined sub-metrics across five domains. Designed to enable cross-scenario benchmarking and longitudinal tracking of response capability
Maturity curve classification	Tiered classification that maps IRRS scores into discrete readiness bands and surfaces longitudinal trends across repeated simulations
Instrumentation bus	Passive hooks that record security-tool invocations and human hand-offs during simulations, validating both tooling integration and team-dynamic factors
Feedback and improvement actions	Converts simulation findings into targeted remediation guidance across tooling, procedures and team coordination. Enables iterative readiness uplift and validation of improvement over time

Source(s): Authors’ own work