Policy Decision Interface (PDI) is a critical component within Policy Enforcement Points that interprets and applies operational rules in industrial systems.
The Policy Decision Interface is a software/hardware integration component within Policy Enforcement Points (PEPs) that receives policy requests, evaluates them against predefined rules and contextual data, and returns authorization decisions. It serves as the decision-making engine that determines whether specific operations, access requests, or process modifications should be permitted based on security policies, operational constraints, and real-time system conditions.
诱因 → 失效模式 → 工程缓解
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The PDI evaluates authorization requests against security policies and operational rules to determine whether specific actions should be permitted in industrial systems.
The PDI is the decision-making component within the PEP architecture. While PEP enforces decisions at control points, PDI evaluates requests and makes the authorization decisions that PEP then implements.
PDIs are critical in manufacturing, automotive, pharmaceutical, chemical processing, and any industry requiring secure, policy-based control of industrial operations and access.
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