# Bounded System Design Packet

For self-directed implementation practice, use the
[fictional claims-denial case](claims-denial-practice-case.md) and the
[optional technical labs](optional-technical-labs.md).

## Vertical slice

- Accepted workflow boundary:
- Eligible case and exclusions:
- Accepted outcome and guardrails:
- 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

| From object and revision | Relationship type | To object and revision | Provenance | Currentness | Owner validation |
| --- | --- | --- | --- | --- | --- |
|  | supports / contests / depends on / supersedes / affects |  |  |  |  |

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

## Components and trust boundaries

| Component | Responsibility | Inputs | Outputs | Trust boundary | Failure behavior |
| --- | --- | --- | --- | --- | --- |
|  |  |  |  |  |  |

## 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.