exception
Enable an agent to recognise a claimed exception to a rule or expectation, assess its justification and decide how it may be handled.
Bundle → Layer → Finding → Questions Filled
6 bundles · 11 layers · 15 findings · 28 questions
Baseline and applicability Establish what ordinary treatment or expectation the candidate qualifies.
Baseline identification
Identify the operative rule or expectation and its force.
Ordinary result
Record what would ordinarily be required, permitted or predicted for the candidate case.
- Which precise rule, norm or expectation would produce the ordinary result, and which version is relevant? definition
- Is the baseline a universal claim, a default expectation or a prescription for conduct? boundary
Scope membership
Test whether the candidate belongs to the baseline's intended domain.
Applicability before exception
Separate an exception to an applicable baseline from a case the baseline never covered.
- Which facts place this case within the baseline's subjects, circumstances and time period? boundary
- Does an existing scope exclusion already explain the different treatment without invoking an exception? definition
Sense and instance tests Make explicit which meaning of exception is being used and how instances are recognised.
Competing interpretations
Record who treats the case as exceptional and under which definition.
Exception reading
Locate disagreement about whether exception means an observed departure, a rule qualification or authorised special treatment.
- What does each relevant source or participant mean by calling this case an exception? definition
- Who holds each interpretation, and where is their position recorded? provenance
- Would the competing interpretations classify the same concrete case differently? boundary
Operational recognition
Specify observable or documentary tests for the claimed exceptional condition.
Departure test
Connect the candidate's facts to an explicit criterion rather than relying on the label exceptional.
- Which observable facts or documented conditions would make this case count as an exception under the selected interpretation? measurement
- What evidence would instead classify it as ordinary variation, a recording error or a violation? boundary
Grounds and contestation Assess the support for recognising the exception and preserve challenges to that support.
Evidential support
Trace the case facts and determine whether they establish the claimed departure.
Case evidence
Record evidence for and against the exceptional condition, including uncertainties that affect classification.
- Which records or observations establish the condition claimed to make this case exceptional? provenance
- Which missing, conflicting or unreliable facts could reverse the assessment? measurement
Normative warrant
For prescriptive baselines, identify the source and limits of permission to depart.
Permission and objection
Distinguish explicit exceptions and delegated exemptions from unsupported requests or retrospective excuses.
- Which clause or delegated power permits the departure, and who may exercise it? provenance
- What objections contest the justification or the decision-maker's authority? boundary
- If permission is unestablished, what decision or evidence is needed before exceptional treatment may proceed? action
Effect and handling Specify what recognising the exception changes and how it should be acted upon.
Bounded consequences
Identify exactly which obligations, permissions or conclusions are affected.
Extent of displacement
Record whether recognition removes, replaces, suspends or qualifies the ordinary result.
- Which specific obligation, permission or predicted conclusion changes when this exception is recognised? definition
- Which parts of the baseline continue to apply, and what substitute conditions govern the case? boundary
Decision routing
Connect recognition status to an appropriate next action.
Status-dependent action
Distinguish actions supported by an established exception from actions requiring further assessment.
- Given the current recognition status, should the agent apply ordinary treatment, use an established exception or refer the claim for decision? action
- What record must accompany the action so another reviewer can reconstruct why the baseline was qualified? provenance
Persistence and generalisation Control continued recognition and assess what the exception implies for other cases or the baseline itself.
Continued applicability
Track whether the conditions supporting recognition still hold.
Reassessment conditions
Identify expiry, changed facts and baseline revisions that require renewed assessment.
- Which time limit, factual condition or baseline version bounds this exception's continued applicability? boundary
- What event should trigger review, withdrawal or reclassification, and what treatment follows? action
Precedent and rule revision
Assess transfer to similar cases and implications for the baseline's adequacy.
Limits of generalisation
Separate case-specific recognition from a reusable exception class or a reason to revise the rule.
- Which features must another case share before this exception's reasoning or permission can apply to it? boundary
- Does the evidence warrant a single-case exception, an explicit exception class or revision of the baseline? action
- If recurrence is cited, how were exceptions counted relative to all eligible cases? measurement
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Check these first
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these check these first hold for the sense of exception this model covers, and on what evidence? provenance
Kinds and varieties
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these kinds and varieties hold for the sense of exception this model covers, and on what evidence? provenance
Real-world use
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these real-world use hold for the sense of exception this model covers, and on what evidence? provenance
Failure modes and hazards
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these failure modes and hazards hold for the sense of exception this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these neighbouring kinds and how to tell them apart hold for the sense of exception this model covers, and on what evidence? provenance
Classifiers Filled
- Family
- Thing Registry
- Category
- Cross-cutting context
- Entry kind
- thing
- Plane
- XCT
- Domain
- XCT.QLT
- Other names and narrower kinds
- variance (land use), United States free speech exceptions
What it is Filled
An exception is a case excluded from the scope of a rule or treated differently from the cases to which a rule, generalisation, or expectation ordinarily applies.
In scope
- The case, class of cases or circumstances claimed to constitute an exception
- The baseline rule or expectation and its intended scope
- Differences between an exclusion, an authorised exemption, a violation and a counterexample
- Evidence, arguments and authority supporting or contesting exceptional treatment
- Conditions, duration and consequences of recognising an exception
Out of scope
- Complete specification and administration of the underlying rule system
- Statistical anomaly detection methods and population models
- Programming language exception objects and runtime handling mechanisms
- Detailed legal doctrines governing particular statutory exceptions
- Incident remediation and defect repair beyond the exception decision
Why it exists Filled
Enable an agent to recognise a claimed exception to a rule or expectation, assess its justification and decide how it may be handled.
Distinguishing features Filled
- A candidate must identify the rule or expectation relative to which it is exceptional; unusualness alone is insufficient.
- A case outside a rule's original applicability may be an exclusion rather than an exception to an applicable rule.
- An observed departure does not establish permission to depart; a violation and an authorised exemption require different evidence.
- A genuine counterexample challenges a universal descriptive claim, whereas an exemption changes how a prescriptive rule applies.
- A departure permitted by the ordinary procedure may be a normal branch of that procedure rather than exceptional treatment.
What robots and AI may and may not do Filled
Must not
- Invent exceptions to rules, laws or policies to justify an action.
- Grant itself or others exceptions it has no authority to grant.
- Treat a person as an exception to protections they are entitled to.
Only with a human decision
- Granting an exception to a policy that affects people.
May
- Identify and explain exceptions to rules, citing the rule and its source.
- Apply exceptions in systems only where the rule-owner has defined them.
Moral aspects Filled
- Exceptions can be fair or a door to favouritism and abuse.
- People denied an exception they qualify for are wronged.
Who is affected
- People subject to rules
- Rule-makers and administrators
Owners Filled
Steward
Nobody owns the concept; the owner of each rule answers for its exceptions.
Links to other meta-models Filled
parent
- Q10862449 - registry parent class
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.exception
- Wikidata: Q779608 (https://www.wikidata.org/wiki/Q779608)
Direct properties not applicable Not applicable
- Baseline referent: Identified rule, norm or expectation, including version and relevant clause
- Interpretive sense: Descriptive departure; counterexample; explicit rule exception; discretionary exemption; contested or unresolved
- Applicability assessment: Baseline applies; baseline excludes case; applicability disputed; insufficient information
- Exceptional condition: Specific case facts linked to the condition claimed to defeat or qualify ordinary application
- Recognition status: Proposed; recognised; rejected; disputed; withdrawn; expired, where applicable
- Recognition basis: Express clause; delegated decision; interpretive argument; empirical evidence; unsupported claim
- Scope of effect: Affected cases, obligations or conclusions, with contextual and temporal limits
- Review trigger: Expiry date, changed circumstance, new evidence, baseline revision or specified review event
Plane XCT: no invented physical properties.
Recognition not applicable Not applicable
Not applicable
An exception is an abstract relationship between a case and a rule and has no intrinsic visual appearance.
Capabilities and actions required Filled
- Compare a candidate case with a named baseline and locate the precise departure.
- Classify the claim as an exclusion, exemption, violation, counterexample or unresolved departure.
- Record competing interpretations and the evidence or authority each relies on.
- Determine whether an authorised exception permits a proposed action within its limits.
- Reassess recognition when conditions, evidence or the baseline change.
- Compare repeated exceptions to assess whether the baseline needs qualification or revision.
Hazards and failure modes required Filled
- An unjustified exception can bypass safeguards and expose people or property to preventable harm.
- Inconsistent exceptions can produce unfair treatment and undermine confidence in decision making.
- An exception applied beyond its intended scope can weaken a rule and create unintended permissions.
- Mistaking an exceptional observation for a general pattern can lead to unreliable predictions.
Standards and interfaces not applicable Not applicable
Not applicable
No universal standard or law governs exceptions as an abstract concept because applicable requirements come from the particular rule and its authority.
Context of use required Filled
- An exception is used when a rule explicitly excludes a case or permits that case to receive different treatment.
- The concept appears in policy interpretation, administrative decisions and reasoning about general observations.
- Assessing an exception requires identifying the underlying rule, the excluded case and the grounds for different treatment.
Sources Filled
- Wikidata item Q779608: exception - identity and sense of the item
- Cambridge Dictionary: Exception - Something outside a general rule or usual pattern.
Open questions
- Does the registry intend exception as a general rule-relative concept, a quality of being exceptional or a narrower disciplinary sense?
- Which reference works and disciplinary sources distinguish exception, exclusion, exemption, violation and counterexample, and where do their definitions conflict?
- Should descriptive departures and normative exceptions share one recognition lifecycle, or require separate state vocabularies within this model?
- When is an explicit exception best represented as part of the baseline's complete rule rather than as a departure from it?
- Which domain-specific criteria justify transferring an exception to similar cases or revising the baseline, without inventing a universal recurrence threshold?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q779608/spec.json