Non Functional Requirements

Non Functional Requirements

Overview

Use this skill to define measurable quality constraints that are enforceable before release.

Scope Boundaries

• Use this skill when the task matches the trigger condition described in description.
• Do not use this skill when the primary task falls outside this skill's domain.

Shared References

• NFR threshold definition rules:
  • references/nfr-threshold-definition-rules.md

Templates And Assets

• NFR specification template:
  • assets/nfr-spec-template.csv
• NFR observability mapping template:
  • assets/nfr-observability-mapping-template.md

Inputs To Gather

• Approved functional requirement baseline.
• Workload assumptions and operating context.
• Security/legal/compliance obligations.
• Existing telemetry and operational response capabilities.

Deliverables

• Measurable NFR set with owners and linked requirements.
• Signal/alert/runbook mapping for release-blocking NFRs.
• Threshold rationale and escalation policy.

Workflow

1. Define NFR set with assets/nfr-spec-template.csv.
2. Apply threshold rules from references/nfr-threshold-definition-rules.md.
3. Map each NFR to telemetry and runbooks via assets/nfr-observability-mapping-template.md.
4. Mark release-blocking NFRs and owner accountability.
5. Publish review-ready NFR baseline.

Quality Standard

• Every NFR is measurable with unit, threshold, and owner.
• Release-blocking NFRs are observable in production.
• Threshold choices reflect user/business risk.

Failure Conditions

• Stop when NFRs are qualitative and non-measurable.
• Stop when required telemetry/runbook coverage is missing.
• Escalate when legal/compliance constraints cannot be operationalized.