Tech Workplace Dictionary

The proportion of time a system is accessible and able to serve its intended function.

The scope of systems users or functionality that could be affected by a failure or change.

A system whose components coordinate across multiple networked computers.

The amount of unreliability permitted while still meeting a service level objective.

A system's ability to continue operating when some components fail.

A runtime switch that controls whether selected users receive a behavior or feature.

A system's ability to preserve its most important functions when part of it is impaired.

An urgent narrowly scoped change made to correct a production problem.

The property that repeating the same operation has no additional unintended effect.

An unplanned event that degrades or interrupts a service or business operation.

An architecture that divides a system into independently deployable services around capabilities.

The average operating time between one failure and the next.

The average time needed to restore service after a failure.

The ability to understand a system's internal state from the signals it produces.

A rotation where designated people respond to urgent service issues outside normal planned work.

A reusable strategy and set of actions for handling a broader situation.

A retrospective document or meeting that records an incident's impact causes response and follow-up actions.

A structured investigation into the underlying conditions that produced an unwanted outcome.

The ability of a system to perform correctly and consistently over time.

Reverting a deployment or change to a previously known state.

The maximum acceptable amount of data loss measured backward in time.

The target maximum time for restoring a service after disruption.

A documented procedure for diagnosing or handling a recurring operational situation.

A system's ability to handle increasing load without disproportionate cost or redesign.

A classification of how much impact an incident or defect has.

A component whose failure can stop an entire critical system or workflow.

A formal agreement defining service commitments and consequences when they are missed.

A measurement used to evaluate a specific aspect of service performance.

A target level of service performance measured over a defined period.

A small set of checks confirming that critical functionality works well enough for deeper testing.

Manual repetitive operational work that scales with service growth and creates little lasting value.