Functional completeness #usable #reliable #suitable Definitions: Provide a set of functions that covers all the specified tasks and intended users’ objectives. ISO-25010-2022 Directly Related Quality Requirements User tries to achieve primary function Related Qualities Correctness Functional suitability Functionality Usability Related Quality Requirements Access control is enforced | #secure #suitable Access find function in three seconds | #usable Accurate estimate of insurance contract rate | #usable #suitable Add new product | #suitable #efficient #reliable Affordable CRM (customer relationship management) | #efficient #suitable Appearance of mobile UI | #usable Assess impact of proposed change | #suitable #reliable Authenticity of a digital document | #secure #suitable Available 7x24 with 99% uptime | #operable #usable #reliable Avoid common vulnerabilities | #reliable #secure Budget constrained library update | #efficient #suitable Compliance with UI styleguide | #usable Compliance with WCA accessibility guidelines | #usable Consistent keyboard shortcuts | #usable #efficient Core functions can be used on multiple OSs | #flexible #usable #operable Detailed audit log | #secure #suitable Detect inconsistent user input | #usable #reliable Easily understandable acceptance test cases | #usable #suitable #efficient Easily understandable generated code | #efficient #usable #suitable Easy UI | #usable Efficient generation of test data | #efficient #suitable Expressive error messages | #usable Fast and accurate sensor | #efficient #reliable Fast deployment | #reliable #operable Good code readability score | #reliable Handle sudden increase in traffic | #reliable Interruptable backend process | #usable Keep data on error | #reliable #usable Low change-failure rate | #reliable Near instant search results | #usable #efficient New Features Introduce No Bugs | #reliable New users learn to find articles on their own | #usable Order queue | #reliable Precise calculation of gamma coefficient | #reliable Precision of vehicle's orientation | #reliable Restored to fully functional state 12h after complete failure | #operable #usable #reliable Server fails | Severe errors are detected and the system shuts down into safe state | #operable #safe #reliable System can run >12h without re-booting the operating system | #operable #reliable System runs offline | #reliable #operable Test with path coverage in 30min | #suitable Up to date API | #reliable #suitable Usable Despite Color Blindness | #usable Usable With Gloves | #usable Usable on Factory Floor | #usable User Interface can be used in Current Browsers | #flexible #usable #operable User tries to achieve primary function | #usable Vehicle's position validity influences accuracy | #reliable #usable Withstand DDoS Attack | #reliable system continues to operate without downtime | #reliable