A tentative application of GOL for the domain of real property

GOL is defined by Degen, Helle, Herre & Smith: GOL: A General Ontological Language. Paper presented at FOIS'01, October 17-19 2001, Ogunquit, Maine, USA
My (incomplete) summary of some GOL elements
  • Sets
  • Urelements
  • Individuals (= concrete entities, exist in re)
  • Substances
  • Moments (exist in time, e.g actions, events, thoughts; presupposes Substances)
  • Chronoids (temporal region; a Substance has lifetime)
  • Topoids (spatial region)
  • Situoids (configurations, relations among, of all previous Individuals and possibly some Universals; have a certain granularity and point of view, the Universals are the key for grasping the Situoid). Situations are (~) instances of Situoids.

  • MaterialRelations, eg contract(party1, party2, agreement, document)
  • Universals (=abstractions of Individuals or of lower-order universals)
  • FormalRelations, eg largerThan, partOf, dependentOn,

  • Application of GOL

    - Person
    - TerrainObject - Document - Equipment Chronoid:
    - for changes: some months, granularity 1 day
    - else: 10s and 100s of years

    - jurisdiction (country), where specific legislation is obeyd and enforced
    - terrain, where Boundaries are marked and measured relative to GeodeticReferenceSystem
    - offices, where agreements are made or wittnessed, where casework is performed, or asset representations handled

    Person has role as

    GraphTheory comprises of Assets includes Companies comprises InformationSystems


    Spatial specification: Identification of bounded lot of land by means of Document, TerrainObject, GraphTheory and SpatialReferenceFrame (~ coordinate system)

    Spatially specified right: Identification of real property right by means of




    - actors (owner, surveyor, geodetic service)
    - databases, with SpatialSpecification of TerrainObjects
    - documents
    - terrain

    - actors (owner, notary, court, local authorities, holders of right)
    - databases, with enumeration of spatiallySpecified rights
    - documents (carry information on spatial and legal specifics)
    - assets
    - asset storage (banks, financial organisations)

    - new information (e.g. field measurement sheet, drafted document)
    - new legal situation regarding unit of real estate (e.g. changed owner, new easement recorded, purchase permission granted/ denied)
    - new allocation of assets (e.g. deposit in bank, delivered chash, ..)

    Moments/ Actions

    See CadastralActivitiesConsolidated that is drafted on the basis of the UseCase descriptions of subdivision in SLO, FIN and DK.
    These activities should mirror 'cadastral reality' in said countries in a prolog-like notion
    If the 'UrElements' above are necessary and sufficient for performing these cadastral activities, then the two notes together should be close to a cadastral ontology (I think?).

    Erik Stubkjær, 2002-08-18; 03-13, est@i4.auc.dk