# Severity > Severity means the degree of impact of an error, violation or malfunction on the system's functionality **Term:** Severity **Last updated:** 2026-07-29 ## Definition ## What Severity Means in a Contract Severity refers to the degree of impact that an error, violation, defect, or malfunction has on a system's functionality, a service's availability, or a party's ability to perform its obligations. In contractual language, severity is rarely left to subjective judgment alone. Instead, agreements typically define severity levels so that both parties share a common understanding of what constitutes a minor issue versus a serious or catastrophic one. The concept is especially prominent in technology, software, and outsourcing agreements, where service level agreements (SLAs) rely on severity classifications to determine appropriate responses. A low-severity issue might warrant a routine fix within days, while a critical-severity incident could require immediate escalation, emergency support, or notification to regulators or customers. Understanding severity within a contract also means understanding how it interacts with other defined terms, such as material breach, downtime, or force majeure. Severity often acts as a gateway concept that determines which contractual remedy applies. ## How Severity Is Defined or Measured Most contracts that use severity as an operative concept include a schedule or annex setting out severity tiers, commonly labelled Severity 1 through Severity 4, or descriptive labels like critical, high, medium, and low. Each tier is usually accompanied by objective criteria, such as the number of users affected, whether core functions are unavailable, whether data integrity is compromised, or whether the issue creates safety or legal risk. Measurement methods vary by sector. In technology contracts, severity may be tied to system uptime percentages or the number of affected transactions. In healthcare or manufacturing, severity might be measured against safety thresholds or regulatory reporting obligations. Where personal data is involved, severity assessments often overlap with obligations arising from a