Price Valuation & Appraisal

Findings

Catalogue-native findings must describe the information grouped by each layer. This legacy version does not declare them separately.

Questions & artifacts

Questions, artifact requirements and serial naming rules are required by Vercy vNext; they remain unassigned in this reference version.

Dimension & namespace

• REFERENCE `world.organization` (O1): observing, appraising and index-compiling organizations, and organizations whose assets are valued.
• REFERENCE `world.commercialContract` (O5): executed agreements are a class of price source under contribution contracts.
• REFERENCE `world.landParcel` (P2): parcels and buildings as frequent valuation subjects.
• REFERENCE note: `world.insurance` (C8) REFERENCEs this model for insured values and loss quantification.
• REFERENCE `world.stewardship` (S1) and `world.accessGrant` (S2): ownership and access grants over observations, opinions and series.
• MIX-IN `world.auditTrail` (S4): audit facets on corrections, revisions and method changes.
• imports: sdmx (ALIGN): statistical data and metadata exchange shapes for series and releases.
• imports: appraisal-standards (ALIGN): appraisal practice vocabulary including bases of value.
• imports: iso-4217 (REFERENCE): currency codes on every amount.

Canon, patches & standards

• REFERENCE `world.organization` (O1): observing, appraising and index-compiling organizations, and organizations whose assets are valued.
• REFERENCE `world.commercialContract` (O5): executed agreements are a class of price source under contribution contracts.
• REFERENCE `world.landParcel` (P2): parcels and buildings as frequent valuation subjects.
• REFERENCE note: `world.insurance` (C8) REFERENCEs this model for insured values and loss quantification.
• REFERENCE `world.stewardship` (S1) and `world.accessGrant` (S2): ownership and access grants over observations, opinions and series.
• MIX-IN `world.auditTrail` (S4): audit facets on corrections, revisions and method changes.
• imports: sdmx (ALIGN): statistical data and metadata exchange shapes for series and releases.
• imports: appraisal-standards (ALIGN): appraisal practice vocabulary including bases of value.
• imports: iso-4217 (REFERENCE): currency codes on every amount.

Artifact formats & serial data

Format-independent core. Concrete artifact formats and naming prefixes are not declared in this legacy version.

Policies & accepted processes

• `observationContribution`: sources contribute price points under agreed terms and quality rules.
• `indexSubscription`: consumers receive index releases and a defined depth of history.
• `appraisalReliance`: named third parties may rely on a value opinion within its stated scope and validity.

Read / add / edit / delete

CRUD procedures and interface bindings are not declared in this legacy version.

Ownership, roles & access

The observing, appraising or compiling organization owns its observations, opinions and indices; subjects of valuation are identified by reference and do not own the opinion. Access is granted by the owner under the S1/S2 models of this catalogue.

Objects

• `priceObservation`: a single recorded price; key attributes: amount, currency, observed date, observation kind (transaction, quote, listing).
• `priceSource`: where observations come from; key attributes: source kind, coverage, reliability grade.
• `appraisalEngagement`: a commissioned valuation assignment; key attributes: client reference, purpose, effective date, scope.
• `valuationSubject`: the thing being valued; key attributes: subject kind, external referent link, description as inspected.
• `valueOpinion`: the concluded professional opinion; key attributes: amount, currency, basis of value, opinion date, validity.
• `priceIndex`: a defined composite series; key attributes: name, scope, base period, frequency.
• `indexRelease`: one compiled publication of an index; key attributes: period, value, revision state, release date.
• `methodology`: a documented method; key attributes: approach, version, standards conformance, adoption date.

Relationships

• `priceObservation` -> collectedFrom -> `priceSource` (n:1): provenance of every observation.
• `appraisalEngagement` -> concerns -> `valuationSubject` (n:1): what the assignment values.
• `valuationSubject` -> resolvesTo -> `world.landParcel` (n:1): the external referent, for example a parcel (P2), an organization asset (O1) or another catalogue entity.
• `valueOpinion` -> concludes -> `appraisalEngagement` (1:1): the outcome of the assignment.
• `indexRelease` -> publishes -> `priceIndex` (n:1): each release instantiates one series for one period.
• `priceObservation` -> aggregatedInto -> `indexRelease` (n:m): observations feeding a compiled value.
• `appraisalEngagement` -> governedBy -> `methodology` (n:1): the method applied; indices are governed the same way.

Events

• `priceObserved`: a price point was recorded from a source.
• `observationCorrected`: a recorded observation was corrected or invalidated.
• `appraisalCommissioned`: a valuation assignment was accepted.
• `valueOpinionIssued`: a concluded opinion was delivered.
• `indexReleased`: an index value for a period was published.
• `indexRevised`: a published index value was revised or the series was rebased.
• `methodologyAdopted`: a method or its new version came into use.

Projections

• `marketBoard`: headline index values and movements; omits underlying observations.
• `appraisalSummary`: concluded value, basis and date; omits working papers and comparables.
• `researchExtract`: anonymized observation series for analysis; omits source identities.