SHOWSTOPPER — A critical bug, issue, or problem that completely blocks progress, prevents a product launch, or stops users from completing essential tasks. Requires immediate resolution before moving forward.

See also: Escalation, UAT, SLA

Related

• Diagnostic.ly Glossary: Terms & Abbreviations A–Z
• Types of Diagnostic Tests: Categories, Methods & Terms
• Escalation: Definition & Meaning
• User Acceptance Testing (UAT): Definition & Meaning
• Service Level Agreement (SLA): Definition & Meaning