Bounded System Design Packet

For self-directed implementation practice, use the fictional claims-denial case and the optional technical labs.

Evidence boundary

• Evidence mode: live field evidence / sanitized retrospective / synthetic practice:
• Evidence classes used: assertion / observation / policy / measured operations / exact-build test / exercised capability:
• Intended use or decision:
• Scope and applicability:
• Current limitations and prohibited claims:

Vertical slice

• Workflow boundary: accepted / explicitly provisional technical-spike hypothesis:
• Authority basis and limitation; a provisional packet cannot authorize implementation or production use:
• Eligible case and exclusions:
• Accepted outcome and guardrails—or provisional hypothesis and validation need:
• Accountable operating owner:
• Mechanism records:

Domain and state

• Canonical identities:
• Domain states and transitions:
• Invariants trusted software must enforce:
• Workflow lifecycle:
• Evidence maturity:
• Proposal and human disposition:
• Currency and derived readiness:

Typed dependency graph

Graph edges route review and selective propagation. They never grant authority or prove completion.

Components and trust boundaries

Context and data contract

• Source systems, authority, and permitted purpose:
• Label or expected-output authority and adjudication:
• Preparation and lineage:
• Version, freshness, representative coverage, and quality checks:
• Model-visible context:
• Restricted fields and retention:
• Missing or contested evidence behavior:
• Remediation owner and economics:

Tool and effect boundaries

• Caller identity and tenant:
• Capability and version:
• Policy and approval checks:
• Credentials and egress:
• Idempotency and concurrency:
• Source-of-truth readback:

Failure and recovery

Cover malformed model output, timeout, dependency failure, duplicate request, partial effect, concurrent change, stale evidence, failed readback, rollback, disable, and restart recovery.

Telemetry

• Business outcome and adoption:
• Model behavior:
• Software reliability:
• Safety and authorization:
• Human review and exception load:
• Cost and capacity:

Exact release tests

List positive, negative, recovery, migration, isolation, security, evaluation, accessibility, cost, and rollback checks required for the slice.