Post on 22-Dec-2015
Modelling the spatial data of Hellenic Cadastre Modelling the spatial data of Hellenic Cadastre and generating the geodatabase schema and generating the geodatabase schema
Aris Sismanidis
ARISTOTLE UNIVERSITY OF THESSALONIKI FACULTY OF ENGINEERING SCHOOL OF RURAL AND SURVEYING ENGINEERINGDEPARTMENT OF CADASTRE, PHOTOGRAMMETRY AND CARTOGRAPHY
COST G9 Modelling Real Property Transactions
Working Group no 2, 2nd – 3rd September 2004 in Székesfehérvár, Hungary
Modelling the cadastral transactions Modelling the cadastral transactions of sale and subdivision in Greece of sale and subdivision in Greece
Modelling the cadastral transactions of sale and subdivision in Greece
reinforcement of data exchange between land registration systems
reduction of the transaction costs increase of the transparency of real.property markets
Benefits of modelling the cadastral Benefits of modelling the cadastral transactionstransactions
The cases of salesale and subdivisionsubdivision are being analysed taking into account: technical juridical administrative proceduresfrom the time that a beneficiary motivates the transaction until its completion
Modelling the cadastral transactions Modelling the cadastral transactions of sale and subdivision in Greeceof sale and subdivision in Greece
Person motivates the purchase
Beginning of the sale [Yes]
Buyer addresses directly to the owner
Real Property Agency finds a suitable parcel
Does the person address to a
Real Property Agency?
[No]
Agreement about the price of purchase
[Yes]
[No]
Is the price of the purchase
over 12.000€?
Owner and buyer appeal to separate lawyers
Buyer addresses to a lawyer
Before addressing to a notary, owner and buyer collect
the necessary documents
The notary draws up the deed
Owner and buyer sign the deed
[Cadastral Office]
What is Land Registration
System?
[Mortgage Office]
Cadastral officer checks for the legality of the deed
and documents
Mortgage officer checks for the legality of the deed
and documents
New beneficiary submits the deed to the Cadastral Office
New beneficiary submits the deed to the Mortgage Office
Registration of the new title
Is check valid?
[Yes]
[No]
Is the pendency eliminated?
[No]
Change of Cadastral database records
Temporal registration of the new title
[Yes]
Completion of the property transfer
Are the necessary documents collected
and valid?
[No]
[Yes]
Deletion of the temporal registration
Cancellation of the property transfer
Owner addresses to a surveyor
Surveyor depicts in a sketch the land parcel
Notary checks the title of the real property
Notary checks if there is any charge (servitude, mortgage)
[No]
[Yes]
Elimination of mortgage(-s)
Notary checks the rest of the documents
Existence of mortgage(-s)
Modelling the cadastral transaction of saleModelling the cadastral transaction of sale
Person motivates the purchase
Real Property Agency finds a suitable parcel
Buyer addresses directly to the owner
Agreement about the price of purchase
Owner and buyer appeal to separate lawyers
Buyer addresses to a lawyer
Owner addresses to a surveyor
Surveyor depicts in a sketch the land parcel
Before addressing to a notary, owner and buyer collect
the necessary documents
Notary checks the title of the real property
Notary checks if there is any charge (servitude, mortgage)
Notary checks the rest of the documents
Elimination of mortgage(-s)
The notary draws up the deed
Owner and buyer sign the deed
New beneficiary submits the deed to the Cadastral Office
New beneficiary submits the deed to the Mortgage Office
Cadastral officer checks for the legality of the deed
and documents
Temporal registration of the new title
Change of Cadastral database records
Deletion of the temporal registration
Registration of the new title
Mortgage officer checks for the legality of the deed
and documents
Beneficiary motivates
the subdivision
Beginning of the subdivision
Beneficiary addresses
to a surveyor
Surveyor checks the documents concerning
the real property
Notary checks the title of the real property
Notary checks if there is any charge (servitude, mortgage)
[No]
[Yes]
Existence of mortgage(-s)
Elimination of mortgage(-s)
Beneficiary receives a certification that the subdivision is permitted
The notary draws up the the deed
Beneficiary sign the deed
[Cadastral Office]
What is the Land Registration
System?
[Mortgage Office]
Cadastral officer checks for the legality of the documents
Mortgage officer checks for the legality
of the documents
Beneficiary submits the deed and the documents to
the Cadastral Office
Beneficiary submits the deed and the documents
to the Mortgage Office
Registration of the new titles
Is the check valid?[Yes]
[No]
Notary checks the rest of the documents
[No] Change of Cadastral database records and
updating of the cadastral maps
Temporal registration of spatial transaction
[Yes]
Completion of the subdivision
Is the pendency eliminated?
[No]
[Yes]
Deletion of the temporal registration
Surveyor fills in a a declaration form that the created land parcels are buildable.
The declaration must be accompanied to a plan depicting the land parcels.
Beneficiary addresses to a notary having all the necessary documents
Subdivision is cancelled
Are the necessary documents collected
and valid?
In case the initial land parcel is placed inside the urban area, the surveyor checks if the created
land parcels are buildable according to the urban planning legislation
In case the initial land parcel is placed inside the zone, the surveyor checks if the
area of each created land parcel is usually over 2000m2
The surveyor checks if the land parcel originates from land consolidation or distribution that the
Ministry of Agriculture had executed
In case the land parcel is placed inside the residential control zone,
the surveyor checks for the minimum area of the subdivided land parcels, that the decrees define
Is the subdivision forbidden by the
restrictions? [Yes]
[No] Subdivision is cancelled
Beneficiary applies to the Cadastral office for a cadastral diagram and
the numbers of the land parcels that change
Surveyor depicts in a sketch the land parcels and updates the sketch according to the mutation
that took place. He names the new created points in the cadastral map and gives a table of coordinates of the new points in
the Hellenic Geodetic Reference System 1987.
Modelling the cadastral transaction of Modelling the cadastral transaction of ssubdivisionubdivision
Beneficiary motivates
the subdivision
Beneficiary addresses
to a surveyor
Surveyor checks the documents concerning
the real property
Notary checks the title of the real property
Notary checks if there is any charge (servitude, mortgage)
Notary checks the rest of the documents
Elimination of mortgage(-s)
The notary draws up the deed
Temporal registration of the new title
Deletion of the temporal registration
Registration of the new title
In case the initial land parcel is placed inside the urban area, the surveyor checks if the created
land parcels are buildable according to the urban planning legislation
In case the initial land parcel is placed inside the zone, the surveyor checks if the
area of each created land parcel is (usually) over 2000m2In case the land parcel is placed inside the residential control zone,
the surveyor checks for the minimum area of the subdivided land parcels, that the decrees defineThe surveyor checks if the land parcel originates
from land consolidation or distribution that the Ministry of Agriculture had executed
Beneficiary receives a certification that the subdivision is permitted
Surveyor fills in a declaration form that the created land parcels are buildable.
The declaration must be accompanied to a plan depicting the land parcels.
Beneficiary addresses to a notary having all the necessary documents
Surveyor depicts in a sketch the land parcels and updates the sketch according to the mutation
that took place. He names the new created points in the cadastral map and gives a table of coordinates of the new points in
the Hellenic Geodetic Reference System 1987.
Cadastral officer checks for the legality of the documents
Beneficiary submits the deed and the documents to
the Cadastral Office
Beneficiary applies to the Cadastral office for a cadastral diagram and
the numbers of the land parcels that change
Beneficiary submits the deed and the documents
to the Mortgage Office
Change of Cadastral database records and
updating of the cadastral maps
Beneficiary sign the deed
Mortgage officer checks for the legality
of the documents
The Hellenic Cadastral DataThe Hellenic Cadastral Data
Modelling the spatial data of Hellenic Cadastre and Modelling the spatial data of Hellenic Cadastre and generating the geodatabase schemagenerating the geodatabase schema
RelationalRelationalDatabaseDatabaseSystemSystem
Object Object Oriented Oriented
DesigningDesigning
UMLUML XMLXML - XMI - XMI
GeoDataBaseGeoDataBase
XML IntroductionXML IntroductionXML is...
eXtensible Markup Languagederived from SGML (Standard Generalized Markup Language - ISO 8879)an open standard which was approved in February 1998 from W3C, and includes ISO character setsa standard way of representing information in a text format (use tags to describe document structure and content) ideal for use in exchanging data in a standard, easy to interpret formatsimilar to HTMLsystem-independentsupported from a wide range of software developers (IBM, Microsoft, Adobe, Oracle etc)defines, validates, and supports the sharing of formats in the web
Modelling the spatial data of Hellenic Cadastre and generating the geodatabase schema
XMI – An important initiativeXMI – An important initiative
XMI is…
XML Metadata Interchangean open standard like UML and XML inspired by Object Management Group’s (OMG)uses XML in order to achieve the textual representation of UML specifications enables the easy interchange of data between modeling tools based on UML or other tools
Modelling the spatial data of Hellenic Cadastre and generating the geodatabase schema
Generation of the geodatabaseGeneration of the geodatabase
The steps for creating the geodatabase were:
Design the object model in static structure UML diagram in Ms Visio 2003, using a template published by ESRI (ArcInfo UML model)
Export the model to XML Metadata Interchange (XMI), using the XMI Export facility
Generate and create the geodatabase schema, in ArcGis 8.3
The generation tools translate the UML model into an empty geodatabase schema, that is, a set of feature classes, tables, relationship classes, and rules.
UML, XML, XMI are used in order to approach a model for the spatial data of the Hellenic Cadastre and achieve the generation of the geodatabase in a GIS software.
Modelling the spatial data of Hellenic Cadastre and generating the geodatabase schema
Conclusions- Benefits of use UML, XML & XMIConclusions- Benefits of use UML, XML & XMI
UML can be used to capture systems analyses and create linguistic data modelsXML is a data interchange format characterized by its simplicity, flexibility and extensibilityXMI is a tool for the transformation of object-oriented models into text format. XMI can be transformed into implementation specific productsThese technologies facilitate the exchange of information in an independent manner, allowing developers to build, store, and exchange models, regardless of using a programming language. In other words, they achieve the interoperability and the easy interchange of data between heterogeneous systems
Modelling the spatial data of Hellenic Cadastre and generating the geodatabase schema
Conclusions- ProblemsConclusions- Problems
During the procedure of importing the data model in ArcInfo, the model had to be rebuilt in a more relational perspective so that the import of the model can be applicable, because ArcInfo operates in a more relational perspective either than in object oriented logic
Software tools that export in XMI format use different versions of XMI, a problem which is strengthened by the various versions of UML
Modelling the spatial data of Hellenic Cadastre and generating the geodatabase schema