errorhandled

Errorhandled is a term used in software engineering to describe the deliberate design of components to manage errors through detection, reporting, and recovery. The concept emphasizes not only catching failures but ensuring that errors do not cascade and that users and operators receive meaningful information.

Common errorhandled practices include explicit error propagation, the use of typed error results, centralized logging, structured metrics, and clearly defined fallback strategies. Recovery patterns such as retries with backoff, circuit breakers, graceful degradation, and compensating actions are typically employed. Observability is integral, with error rates, latency, and traces guiding response.

Programming languages implement error handling differently. In languages with exceptions, errorhandled design favors catching and translating lower‑level faults into domain errors. In languages with explicit error values, functions return error types that callers must check. In asynchronous environments, promise or future rejection handling is central to maintaining reliability.

Adopting errorhandled practices can improve reliability and user experience but may add complexity and affect performance. Overly aggressive error suppression can mask bugs, while poorly defined error contracts can make systems brittle. Good practice includes clear error semantics, consistent error codes, and documentation of failure modes and recovery options.

See also: error handling, exception handling, resilience engineering, fault tolerance, observability.