SoC Integration · All levels
Top-Level Closure Dashboard: Comparison Matrix
Comparison Matrix for Top-Level Closure Dashboard.
Comparison matrix
Waiver posture trades schedule pressure against silicon risk.
+------------------+----------------+----------------+----------------+
| Approach | Strength | Weakness | Best when |
+------------------+----------------+----------------+----------------+
| Strict | predictable | slower early | new program |
| Balanced | practical | needs rigor | stable teams |
| Aggressive | fast | escape risk | late schedule |
| Re-architect | durable | expensive | recurring failures |
+------------------+----------------+----------------+----------------+When to choose each approach
Pick the approach based on residual silicon risk, not only schedule pressure.
Review traps
Policy-only arguments without artifact evidence
Unbounded waivers
Evidence comparison
INTEGRATION EVIDENCE MATRIX — Top-Level Closure Dashboard
+-------------------+------------------------+--------------------------+-------------------------+
| Evidence | Tells you | Does not prove | Next action |
+-------------------+------------------------+--------------------------+-------------------------+
| Manifest diff | baseline changed | root cause itself | isolate first delta |
| Domain trace | where behavior diverged| ownership accountability | map to contract owner |
| Signoff dashboard | closure posture | reproducibility quality | verify source artifacts |
| Bring-up logs | software-visible symptom| physical/timing cause | correlate with HW trace |
| Waiver register | accepted residual risk | technical closure | review expiry criteria |
+-------------------+------------------------+--------------------------+-------------------------+SoC deep dive
Signoff confidence depends on evidence quality and reproducibility discipline.
Concept diagram
SIGNOFF DECISION FLOW
metrics -> manifest -> waivers -> executive reviewMetric graph
OPEN CRITICALS OVER TIME
week1 █████████
week2 █████
week3 ██Reports and artifacts
closure dashboard
signoff manifest
waiver aging report
TRR checklist
Mini case study
A near-tapeout risk was caught when manifest mismatch invalidated an apparently green closure report.
Debug branches
Validate manifest integrity
Bound waiver risk
Audit cross-domain owner approvals
Senior review question
Ask: what baseline, owner, and artifact prove this topic is truly closed?
Key takeaways
State baseline manifest and owner with every closure metric.
Run cross-domain regression after every top-level fix.
Common pitfalls
Comparing results across different manifests.
Unowned issues slipping through review cycles.
Waiving risks without expiry and validation plan.
Principal SoC review addendum
A closure dashboard unifies timing, power, DRC/LVS, CDC/RDC, and verification readiness into a decision-grade tapeout view.
Metric: open critical signoff items, closure burn-down trend