Transfer modellingHans Mattsson, Riga October 2004

Modelling1. Core Cadastral Domain Model = static (Lemmon, COST etc.)2. Activity diagrams = dynamic (Sumrada, COST etc.) 3. “Mushroom model” = dynamic (Zevenbergen)

Current situation1. Static models do not show in what way rights are changed2. Activity diagrams do not show in what way rights are changed3. “Mushroom model” can be a starting point for modelling?

Second draft of the Core Cadastral Domain Model

Source: Further Progress in the Development of a Core Cadastral Domain ModelChristiaan LEMMEN and Peter VAN OOSTEROM, The Netherlands

Request for survey

Application for registration

Application for permission Authority issues permission

Completing the detailed report

Verification of application

Completing cadastral decision and file

Surveyor performs measurements

Cadastral registration Ownership registration

Surveyor investigates the case

cadastral decission

Application for permission

preparation

land policy control

registration

Cadastral registration Ownership registration

Completing cadastral decision and file

Treatment of rights

Surveyor investigates the case

Surveyor considers land policy

Owner gets cadastral copies

Slovenian subdivision Swedish subdivison

Surveyor performs measurements

Owner gets WHAT?????

Source: Rados, Ferlan, Mattsson and Vaskovich (forthcoming report, preliminary figure)

Mushroom model

Source. Zevenbergen, 2004)

Core entities model

S (subject related to the right/person)

R (ownership right)

Object (object for the right/land)

1. See also Zevenbergen, 2001, 20042. ULM terminology is not used in the presentation.

Ex. Sale

S1 S2

R

O

Subdivision (assumption: no localized rights or restrictions)

S1

R

O

Original propertybefore decision

S1

R

S1

ORemaining

RNew

ONew

Properties after decision

+

Originalproperty

Remainingproperty

Newproperty

What happens on the land?

What happens on the person, right and object?

Reallotment (assumption: no localized rights or restrictions)

Before decision

S1 S2

O1

R2

O2

After decision

+

What happens on the land?

What happens on the person, right and object?

Property 1(before)

Property 1(after)

Property 2(after)

R1

S1 S2

O1+part

R2+R1

O1-part

Property 2(before)

Part Part

Lease (new lease is contracted for the whole property)

S

R

O

Original propertybefore lease

S LH

O

Lease right

Property with lease

Original propertyused by the owner

What happens on the land?

What happens on the person, right and object?

O

R-Lease right +

Original propertyused by leaseholder

HM hypotheses for “mushroom” modelling:

1. Dynamic transfer modelling must include rights2. Subjects, rights and objects must often be considered together3. Rights are more difficult to model than subjects and objects4. People modelling rights must be good in modelling and law5. Models shall be general and not covering everything6. The goal is to understand, not to show everything