Field Vocabulary

Every field develops a vocabulary. Medicine, engineering, law, and architecture all rely on terms that take on specific meanings inside the discipline. The purpose is precision. A shared vocabulary allows practitioners to discuss complex conditions without rebuilding the underlying concepts each time.

The Realis corpus gives ordinary English words technically specific meanings. The definitions below fix those meanings for readers, practitioners, institutions, and researchers working within the framework.

This page grows as the field grows.

Admissibility

The condition under which a decision, action, claim, or authority can be treated as structurally valid. Admissibility does not determine whether a decision is correct. It determines whether the basis for the decision satisfies the conditions required for legitimate evaluation. Decisions become inadmissible when their basis cannot be verified, traced, examined independently, or corrected.

A note on three close terms Authority, legitimacy, and admissibility all turn on whether something can stand, and a reader can conflate them. Authority is the capacity: the standing to act on behalf of a system. Legitimacy is the property that capacity must possess: a basis that withstands independent examination. Admissibility is the test applied to a specific decision, action, or claim: whether its basis satisfies the conditions required for evaluation. Authority is what a system has; legitimacy is the condition under which that authority answers to something outside itself; admissibility is the verdict reached when a particular instance is examined. A system can assert authority it lacks legitimacy for, and produce decisions that fail admissibility while the authority behind them is never questioned.

Authority

The legitimate capacity to act on behalf of a system. Within the corpus, authority is not status, rank, popularity, or force. Authority exists where responsibility, consequence, evidence, and decision-making stay structurally connected.

Capture

The condition in which a system comes to serve an interest other than the reality it was built to track. Capture severs authority from consequence. The system continues producing decisions, while evidence and external conditions no longer reach the basis on which those decisions form. Capture is often invisible from inside, because the system's internal coherence is preserved even as its correspondence to reality is lost.

Coherence

The internal consistency of a system measured against its own reference rather than against reality. A system possesses coherence when its parts agree with one another, its records agree with its procedures, and its account of itself holds together. Coherence is distinct from correspondence. A system can preserve full internal coherence while its correspondence to reality is lost, which is why coherence alone cannot detect drift. Capture, and the audit that passes before failure, both turn on coherence retained while contact with reality is gone.

Consequence

The structural response reality produces when decisions interact with actual conditions. Consequence acts independently of preference, intention, authority, or belief.

Constraint

A condition that limits the responses available to a system. Constraints define what can occur, what cannot occur, and what costs accompany each available path.

Containment

The isolation of harmful influence while preserving the evidence required for understanding, accountability, and repair. Containment differs from removal. The objective is preservation of understanding alongside protection from further harm.

Correction

The process by which reality alters an institution's understanding, decision, or behavior. Correction is the mechanism through which a system updates itself in response to evidence, consequence, or changing conditions.

Correction Capacity

The ability of a system to be altered by evidence before failure forces the change. Systems lose correction capacity before they lose function. The loss often stays invisible until consequences accumulate.

Correspondence

The relationship between an institution's understanding and the reality it is attempting to describe, measure, or navigate. Internal coherence and correspondence are distinct. Systems can possess one while losing the other.

Decision Integrity

The condition in which evidence, authority, responsibility, and consequence stay connected throughout the decision process. A decision possesses integrity when its basis stays inspectable, traceable, and capable of correction.

Drift

The widening discrepancy between what a system understands and the conditions it actually faces. Drift accumulates when a system continues running against an outdated reference while believing its understanding is current.

Failure

The condition a system reaches when it can no longer produce admissible decisions, and consequence arrives without mediation. Failure is a structural threshold, not an event of magnitude. A system can continue functioning, producing output, and commanding authority well past the point at which it has lost the capacity to be corrected. Failure names the moment reality enforces what the system could no longer enforce on itself. Correction capacity is what a system spends on the way to this threshold.

Invariant

A property that is preserved across the transformations a system undergoes. An invariant is what does not change when conditions, descriptions, or frames of reference change. In the corpus, invariants identify the structure beneath surface variation: the conditions that must be satisfied for valid contact with reality regardless of the institutional, diagnostic, or decision layer in which a system is functioning. Foundational invariants sit beneath the propositions that derive from them.

Legitimacy

The property present in an authority, decision, or standard whose basis can withstand independent examination. Legitimacy is not consent, popularity, or formal position. It is the condition under which a claim to act can be evaluated against evidence and survive that evaluation. Authority is the legitimate capacity to act; admissibility concerns legitimate evaluation; standards make legitimacy transferable beyond direct observation. The common element is that legitimacy answers to something external to the system asserting it.

Load

The cumulative demand a structure sustains while continuing to perform its function. Load is distinct from pressure. Pressure is demand acting on a system at a given moment; load is the accumulated demand already present in a system. A structure can absorb pressure it has capacity for and accumulate load it cannot release. Behavior under load is the test that separates rugged flexibility from arrangements that perform well only when demand is light.

Orientation

The capacity to maintain contact with relevant reality under changing conditions. Orientation is concerned with present position relative to reality. Prediction of future events is a separate activity.

Pressure

Demand acting upon a system. Pressure may originate from urgency, incentives, politics, economics, social forces, scarcity, competition, or consequence. Pressure is not inherently harmful. Its effects depend on the architecture receiving it.

Propagation

The process through which effects travel through a system. Errors, pressures, incentives, and consequences all propagate. Understanding their routes is necessary for understanding system behavior.

Reality Contact

The property through which reality can still correct a system. A system possesses reality contact when evidence, consequence, and external conditions retain the ability to alter decisions and understanding.

A note on three close termsOrientation, correspondence, and reality contact describe the same system-reality relationship from three angles, and a reader can conflate them. Correspondence is the state of the relationship: how well a system's understanding matches the reality it is describing. Reality contact is the channel that keeps that relationship live: whether reality still has the ability to correct the system. Orientation is the capacity that uses the channel: maintaining position as conditions change. A system can have correspondence at a single moment yet have lost the contact that would let it stay corresponded as conditions move.

Reference

The frame against which a system measures its position. Every act of orientation is relative to a reference. A system reads its position, its accuracy, and its drift against the reference it keeps. When the reference is sound, contact with reality is possible; when the reference is outdated and the system does not recognize this, drift accumulates against a frame the system still trusts. Correspondence is measured against reality; coherence is measured against the system's own reference. The two diverge whenever the reference has stopped tracking the conditions it was built to represent.

Refusal Infrastructure

The architecture that makes structural refusal available before the moment it is needed. Where structural refusal is the act, refusal infrastructure is the standard and the record-keeping that let a practitioner refuse an inadmissible action by pointing to published criteria rather than to personal judgment alone. The refusal does not depend on the individual's courage, reputation, or willingness to absorb the cost of refusing alone. The architecture absorbs part of the load, and makes refusal a structural response rather than an act of individual nerve.

Standards

Architectures that allow trust, verification, and inspection to function beyond direct personal observation. Standards specify conditions for evaluation before decisions are made. They make trust transferable across scale.

Structural Refusal

The refusal of an action because the conditions required for its admissibility are absent. Structural refusal does not depend on preference. The action is refused because the basis required to support it cannot be produced.

Threshold

The point at which correcting a system stops being an adjustment and becomes a reconstruction. Before a threshold, the effort required to correct is proportionate and the disruption minor, which is also why the correction is rarely made: nothing yet looks wrong enough to justify it. After it, the same correction requires reopening roles, records, and decisions that hardened into precedent under load. A threshold carries no alarm and is recognized only after it has been crossed. Restoration past a threshold stays possible, but its scope, cost, and the willingness it demands all change.

A note on three close termsLoad, threshold, and failure describe one trajectory at three stages, and a reader can conflate them. Load is the accumulated demand a system is already holding. A threshold is the point along that accumulation where the cost of correction changes in kind, from adjustment to reconstruction. Failure is the condition reached when the system can no longer produce admissible decisions and consequence arrives without mediation. Load is what builds, the threshold is the line it crosses, and failure is what waits past the line when correction capacity is gone before reaching it.

Trace

The preserved record of what occurred, why it occurred, and how the decision was reached. Trace allows reconstruction, accountability, learning, and correction.

Verification

The process of determining whether a claim corresponds to reality. Verification differs from agreement. A system may agree with itself completely while failing verification against external conditions.
Field Vocabulary is a living document. Definitions may become more precise as the field develops, while staying accountable to the architecture from which they arise.