Feature Specification:

Service: <service-name> Created: YYYY-MM-DD Status: Planned | In Progress | Shipped

Overview

Objective Function

• Goal:
• Constraints:
• Anti-goals:

System Sketch

• Boundary (in/out):
• Time horizon:
• Actors + incentives:
• Key flows:
• Top constraints/bottlenecks:

User Scenarios & Independent Tests

Scenario 1:

As a , I can so that .

Independent test:

1. Given ...
2. When ...
3. Then ...

Constitution Requirements

• Security boundary:
• Consistency/ownership boundary:
• Idempotency requirements:
• Observability requirements:

Requirements

Functional

• FR-001:

Non-functional

• NFR-001:

Decision Table

Option	Optimizes for	Knowingly worsens	Kill criteria
A
B

Measurement Ladder

• Decision being measured:
• Leading indicators:
• Lagging outcomes:
• Instrumentation source:
• Owner/cadence/action trigger:

Acceptance

• Consumer-visible behavior verified
• Failure scenarios verified
• Contracts updated