3.4 GIS Technology 
For the Cadastre solution, an object-oriented data model was 
3.6 Cadastral Data Discussion 
The maintenance of a property history file is a key component 
Cadastre Systems Architecture 
NOCGC Bucharest 
  
   
AER 2 
User Workstation User Workstation 
Development, Tests & 
Report Generation 
Cadastre District Office 
- 
Scanner, Color, AO 
| 
INBERBEENH | 4 
  
  
  
Link to Central Moj Database 
P 
Central 
Cadastre 
Database 
-*—  Backup/ 
Archive 
RS/6000 H80 Enterprise Server 
District 
Cadastre 
Database 
-——» Backup/ 
Archive 
Netfinity 7600 Server 
  
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Graphical Workstation 
  
Cadastral Textual Update & Registry Cadastral Update - Maps 
View and print maps 
Update property maps 
Manipulate map files 
Figure 5. Cadastre Systems Architecture 
fully utilized for all components. This object technology stores 
all spatial data in the same tables as the attribute data, 
accompanied by established characteristics through the 
utilization of various validation rules without having to create 
them individually in the application code. The ESRI ArcGIS 
technology has embraced the object-oriented data model, 
therefore the complete solution from attribute to table to geo- 
spatial component is able to use this very powerful object 
approach to data development and management. 
The GIS components of the Cadastre application are seamlessly 
integrated into the various functionality of the system, but are of 
primary importance in the 1) project management and tracking; 
2) map/attribute input and maintenance; 3) control point 
inventory and maintenance; 4) internal queries and reports; 5) 
public access queries; 6) surveyor requirements; and 7) 
providing overview information to the Land Book. 
3.5 Cadastre System Architecture 
Figure 5 shows simplified system architecture of the cadastre 
portion of the application: 
252 
of the Cadastral parcel database. The amalgamation or splitting 
of a parcel requires that a new record is added to the table for 
each of the properties involved in the transaction, thus creating 
both an “old” property record, and at least one “new” property 
record. 
For this project, the database maintains a link between 
properties that have been split / amalgamated. This link is 
implemented in a specific Property-Related table. Each time a 
property is split or amalgamated, a new record is added to this 
table for each of the properties involved in the transaction, both 
old and new. For example, on a split of “property 1” into 
“properties 2, 3, 4”, the Property-Related table would contain 
the following records: 
  
  
  
  
  
Old New 
1 2 
1 S 
l 4 
  
  
  
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