Architecture

This section describes resilience-oriented considerations and activities incorporated in the architecture design stage:

• The recommended architecture ... is the one proposed to prevent and cope with unexpected situations.
• Self control ... means that the system needs to control its own behavior. The operators, considered to be part of the system, have a key role in the self control, by controlling the machine, constraining its behavior according to the operational rules .
• The  basic configuration ... and the top level design ... provide two levels of details for a minimal architecture enabling detecting unexpected situation. 
• The admin control ... explains how a admin gate enables faking hazards for testing
• The resilience modules ... provides insight into the exception handler.
• The Exception detector ... consists of specific controls: for the scenario analyzer ..., the situation control ... the activity analyzer ... and the troubleshooter
• In routine automation ..., the machine senses the situation, compares it to the goal, and makes automatic changes, to fill in the gap.

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Updated on 26 Mar 2017.