FURPS is an acronym representing a model for classifying software quality attributes (Functional & Non-functional):
- Functionality - Feature set, Capabilities, Generality, Security
- Usability- Human factors, Aesthetics, Consistency, Documentation
- Reliability - Frequency/severity of failure, Recoverability, Predictability, Accuracy, Mean time to failure
- Performance - Speed, Efficiency, Resource consumption, Throughput, Response time
- Supportability - Testability, Extensibility, Adaptability, Maintainability, Compatibility, Configurability, Serviceability, Installability, Localizability, Portability
The model, developed at HP, was first publicly elaborated by Grady and Caswell. The + was later added to the model after various campaigns at HP to extend the acronym to emphasize various attributes.
FURPS+ is now widely used in the software industry.
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