Quality Characteristics

External Quality

Sub-characteristics

Functionality

Consistency, Completeness, Currency, Precision, Accuracy, Interoperability, Functionality

Reliability

Availability, Recoverability, Fault Tolerance, Maturity, Reliability Compliance

Usability

Understandability, Manageability, Attractiveness, Learnability, Operability, Usability Compliance

Efficiency

Resource utilization, Time behavior, Efficiency compliance

Security

Confidentiality, Integrity, Non-repudiation, Accountability, Authenticity, Security Compliance