---
uai: "1.0"
type: topic-memory
status: active
project: iarpg.com
release: "IARPG-OPS-2"
version: "2.0.21-wip"
review_state: current-until-superseded
---

# Deterministic Scenario Comparison

## Purpose

Record the rules for running two fictional mission decision branches from the same starting state and explaining every difference.

## Current doctrine

- Scenario comparison uses the same Operation Package, starting state, authority, evidence, role allocation, and visible deterministic seed for both branches.
- Same seed plus the same ordered choices must produce byte-equivalent canonical event records.
- Different choices must expose the responsible choice, state transition, reason, metric deltas, evidence effects, extraction state, and debrief consequence.
- Comparison is not a random prose generator; it is an inspectable state machine with exported JSON.
- The accessible structured timeline and difference table remain authoritative even when a visual display is also present.

## Shared Constraints

- Apply [repository constraints](constraints.uai#non-negotiable-constraints).

## Relevant standards

- https://iarpg.com/standard/deterministic-scenario-comparison
- https://iarpg.com/standard/deterministic-mission-state-machines
- https://iarpg.com/standard/mission-event-logging
- https://iarpg.com/standard/roles-and-information-asymmetry
- https://iarpg.com/standard/simulation-conformance

## Relevant mission examples

- https://iarpg.com/mission/port-access-anomaly-investigation
- https://iarpg.com/mission/cross-border-ceasefire-verification

## Deep report links

- [Justice System and Warrant Escalation for Rogue Intelligence](../docs/long-term-memory/reports/justice-system-and-warrant-escalation-for-rogue-intelligence.md#telemetry-and-live-ops-tuning)
- [Hallucinated AI Quest Design in VR MMORPGs](../docs/long-term-memory/reports/hallucinated-ai-quest-design-in-vr-mmorpgs.md#mitigation-strategies-and-design-guidelines)

## Related UAI records

- [simulation.uai](simulation.uai)
- [operation-packages.uai](operation-packages.uai)
- [information-asymmetry.uai](information-asymmetry.uai)
- [telemetry.uai](telemetry.uai)
- [fixture-testing.uai](fixture-testing.uai)
## Comparative Model Boundary

Branch comparison is an ensemble-style explanation of conditional histories. It should expose shared baseline, divergence, assumptions, evidence, uncertainty, and return points rather than select one morally correct or inevitable future. Evidence: [model-family findings](../docs/long-term-memory/reports/planetary-systems-research-integration-and-scenario-modeling-report.md#findings).