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A Pearl is a practical construction lesson: what happened, why it matters, and what to check before similar work begins.
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39 Pearls in the collection
Pearl · Controls and OT
Map each critical OT component to its intended outage behavior and required alternate-power duration, then prove the project-defined transition.
Use before: Integrated systems testing · Operations acceptance and ready for service
Sources: National Institute of Standards and Technology
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Apply equivalent governance to primary and redundant OT paths and prove project-defined normal-to-emergency or manual transition and recovery.
Use before: Integrated systems testing · Operations acceptance and ready for service
Sources: National Institute of Standards and Technology
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Inventory backed-up OT logic, configuration, images, and rules; prove safe restoration or an approved compensating integrity method.
Use before: Early-life review · Integrated systems testing · Operations acceptance and ready for service
Sources: National Institute of Standards and Technology
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