Research Article
PRESENCE: Monitoring and Modelling the Performance Metrics of Mobile Cloud SaaS Web Services
Table 1
Performance metrics used in PRESENCE.
| Domain | Metric/Implementation status | Metric type |
| Scalability | Number of transactions | ✓ | Workload/performance indicator | Number of requests | ✓ | Number of operations | ✓ | Number of records | ✓ | Number of fetches | ✓ |
| Reliability | Parallel connections (clients) | ✓ | Workload | Number of pipes | ✓ | Number of threads | ✓ | Workload size | ✓ |
| Availability | Response time | × | Performance indicator | Up time | × | Down time | × | Load balancing | × |
| Performance | Latency | ✓ | Performance indicator | Throughput | ✓ | Transfer rate | ✓ | Miss/hit rate | ✓ |
| Costs | Installing costs | × | Quality indicator | Running costs | × |
| Security | Authentication | ✓ | Security indicator | Encryption | ✓ | Auditability | ✓ |
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