# Threshold Model

IBQMI Knowledge Graph · node `threshold_model` · type `decision_architecture` · cluster Doctrine · https://www.ibqmi.com/graph/threshold_model

> Determinations are classified by reversibility and impact: reversible acts use standard rules; partially reversible acts require heightened scrutiny; irreversible acts require supermajorities in both chambers plus mandatory independent review; emergency acts are time-bounded with mandatory ex post review.

## Canonical definition
The threshold model is the decision architecture of the Board Statute: determinations are classified by reversibility and impact, and quorum, voting rules and review triggers escalate accordingly.

## Why this node exists
It is the concrete mechanism that makes reversible-first enforceable. A determination that ignores its class is procedurally defective and is itself subject to review and remedy.

## Operational meaning
Reversible determinations use standard quorum and voting rules with rollback-ready remedies. Partially reversible determinations require heightened scrutiny, bounded pilots and an enhanced review cadence. Irreversible determinations require supermajorities in both chambers and mandatory independent review whose independence criteria, scope and outcome are docketed. Emergency determinations are narrow in scope, time-bounded and subject to mandatory ex post review. Quorum distinguishes normal from constrained participation such as recusal or suspension.

## What this does not mean
The model does not rank decisions by importance in the abstract; it ranks them by how hard they are to undo. A high-impact but reversible act remains in the lower tier.

## Canonical facts
- Classes: reversible, partially reversible, irreversible, emergency (Statute §5.2)
- Irreversible acts: ≥ two-thirds supermajority in both chambers plus independent review (Hybrid Board §2)
- Reversible acts: simple majority with recorded reasons
- Defective decisions: identified, docketed and addressed through review and remedy (Board Statute clarifications)

## Structural relationships

- Threshold Model governs [Hybrid Board](https://www.ibqmi.com/graph/hybrid_board)
- Threshold Model escalates to [Remedy Taxonomy](https://www.ibqmi.com/graph/remedy_taxonomy)
- Threshold Model requires [Reasons on Record](https://www.ibqmi.com/graph/reasons_on_record)
- Threshold Model is part of [Board Statute](https://www.ibqmi.com/graph/board_statute)
- [Reversible-First](https://www.ibqmi.com/graph/reversible_first) defines Threshold Model
- [Legal Embedding](https://www.ibqmi.com/graph/legal_embedding) requires Threshold Model

## Sources

- [Board Statute §5.1–5.3](https://www.ibqmi.com/wp-content/uploads/2026/02/Board_Statute_public.pdf)
- [Board Statute page — Threshold model](https://www.ibqmi.com/board-statute/)
- [Home — FAQ: reversible-first tiers](https://www.ibqmi.com/)