Measures
Property | Measure |
---|---|
Speed | Processed transactions/second; User/Event response time; Screen refresh time. |
Size | K Bytes; The number of RAM chips. |
Ease of use | Training time; The number of help frames. |
Reliability | Mean time to failure; Probability of unavailability; Rate of failure occurrence; Availability. |
Robustness | Time to restart after failure; Percentage of events causing failure; Probability of data corruption on failure. |
Portability | Percentage of target-dependent statements; Number of target systems. |
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