Glossary Updates12 new terms added to the glossaries · October 2, 2026, 22:44 CEST
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Glossary · Automation software engineering and architecture

Recovery mechanism

Also known as: Recovery procedure, Error recovery

German: Wiederherstellungsmechanismus

In software and systems engineering, a recovery mechanism is a designed means that returns a system or component to a defined operational state after a fault, failure or interruption, for example by restart, retry, failover or restoring saved state.

  • Software engineering

In one sentence

A recovery mechanism returns a system to a defined operational state after a fault, for example by restart, retry, failover or restore.

Example

After a power loss, the batch controller restores the last saved step and asks the operator to confirm before continuing the recipe.

How it applies

  • Engineering: Recovery mechanisms are designed per failure mode: communication loss, controller restart, corrupted data, failed update. Each needs a defined target state and a check that the state is consistent before operation resumes.
  • Safety: Automatic recovery must not create hazards. After a fault, restarting a machine usually requires a deliberate operator action rather than an automatic restart.
  • Documentation: The operating manual must describe how the machine behaves after interruptions and what operators must do, for example acknowledge, check the position, then restart. Keep this aligned with the Recovery behavior specified in the design.

Recovery mechanism vs. fault reaction

A Fault reaction is the immediate response when a fault is detected, such as stopping or switching to a safe state. A recovery mechanism comes afterward and returns the system to operation.

By knowledge.aitechdoc.world · Published September 26, 2026 · Last reviewed

Source: AI TechDoc Knowledge editorial definition, based on dependable systems engineering practice

Definitions follow the cited standards and specifications. Where a source is a copyrighted publication, such as an ISO, IEC or EN standard, the definition is a close paraphrase, not a verbatim quotation, so as not to infringe copyright. We recommend reading the original publication. The sections “How it applies” are editorial commentary by AI TechDoc Knowledge and are not part of any standard.

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