Reliability Scorecard
Phase 1: Data Collection
Gather metrics for each reliability dimension across the scoring period.
- Availability: Uptime percentage and total downtime minutes
- Latency: p50, p95, p99 response times
- Error rate: Percentage of failed requests
- Durability: Data loss events (count and severity)
- Incident count: Total incidents by severity (SEV1-SEV4)
- MTTR: Mean time to recovery per severity level
- MTTD: Mean time to detection per severity level
- Change failure rate: Percentage of deployments causing incidents
Phase 2: Scoring
Rate each dimension on a 1-5 scale.
| Dimension | Score (1-5) | Target | Actual Metric | Notes |
|---|---|---|---|---|
| Availability | 99.9% | |||
| Latency (p99) | <200ms | |||
| Error Rate | <0.1% | |||
| Durability | Zero loss | |||
| MTTD | <5 min | |||
| MTTR | <30 min | |||
| Change Failure Rate | <5% | |||
| On-call Burden | <2 pages/week | |||
| Documentation | Current | |||
| Disaster Recovery | Tested |
Scoring Guide:
| Score | Meaning |
|---|---|
| 5 | Exceeds target consistently. Industry-leading. |
| 4 | Meets target. Minor gaps only. |
| 3 | Approaching target. Known improvement areas. |
| 2 | Below target. Active remediation needed. |
| 1 | Significantly below target. Immediate action required. |
Phase 3: Gap Analysis
For each dimension scoring 3 or below:
- Identify root causes for underperformance
- List specific improvement initiatives
- Estimate effort and timeline for each initiative
- Assign owners
Phase 4: Comparison
- Compare to previous scoring period
- Identify dimensions with improving/declining trends
- Benchmark against other services of the same tier
Counter-Rationalizations
| Shortcut | Counter | Why |
|---|---|---|
| "We can skip some steps for this case" | Adapt the workflow steps, don't skip them | Skipped steps are where incidents and oversights originate |
| "The user seems to already know what to do" | Complete all workflow phases with the user | The workflow catches blind spots that experience alone misses |
| "This is a minor case, full process is overkill" | Scale the process down, don't turn it off | Minor cases become major when unstructured; the process scales, not disappears |
| "I'll fill in the details later" | Complete each section before moving on | Deferred details are forgotten; real-time capture is more accurate |
| "The template output isn't necessary" | Always produce the structured output format | Structured output enables comparison, audit trails, and handoff to other teams |
Output Format
Scorecard Summary
- Service: ___
- Tier: ___
- Period: ___
- Overall Score: ___ / 50
- Grade: A (45-50) / B (38-44) / C (30-37) / D (20-29) / F (<20)
Trend
| Dimension | Previous | Current | Delta |
|---|---|---|---|
Action Items
- Address all dimensions scoring 1-2 within 30 days
- Create improvement plans for dimensions scoring 3
- Share scorecard with service owners and stakeholders
- Schedule next scorecard review for end of next period