Figure 6: Narrow path not connected to road centerline 
Some producers interpreted object in their own way. Typical 
example is representing of culverts (Figure 7) 
  
AA 
  
ee 
Figure 7: Different ways of representing culverts 
  
  
  
  
Most comments connected to topology processing were in using 
wrong attributes for linear elements (wrong color or weight for 
lines and boundaries). Distribution for errors and companies is 
shown in Table 1. 
  
  
  
  
  
  
  
  
  
  
  
  
Error type Company 
Ci C2 C3 cd C5 C6 
Invalid element type e e e e 
Invalid line attribute e o e e e e 
Invalid boundary 
- e e e e e 
attribute 
Unused boundaries e e e e 
Missing classification . . 
point (textual code) 
Unknown 
; ; : e e e 
classification point 
Excess classification : 
points 
Self intersecting lines e e e 
Self intersecting à 
boundaries 
Invalid cells e 
  
  
  
  
  
  
  
  
  
Table 1: Distribution error types for each company 
2.3.4 Reports 
For each company CGI wrote report, which includes: 
- Introduction 
- Authority for control 
- List of Sources 
- . Content of control 
- A Findings 
- . General and single comments 
= Comments connected to 
processing 
- Conclusion. 
topologic 
2. CONCLUSION 
Croatian Geodetic Institute has done Data upgrade Quality 
Control of structure and topology processing of topographic 
data in short period of time. Control of accuracy and 
correctness of representation and classification have not been 
included in this process. Complete quality system should be 
implemented at the end of the project. 
Even though complete quality system was not implemented, 
CGI has done quality control in part and results of control were 
very useful. Before completing the specification, some elements 
will be changed and enhanced and the difference between 
producers reduced to accepted level. There is also a team in 
CGI for all tasks and challenges. This test quality control 
confirmed that contention. 
REFERENCES 
Croatian Parliament, 1999, Law of state survey and real estate 
cadastre, Narodne novine br. 128/99, Zagreb. 
Statens. Kartverk, 2001. Terms of. reference for. the 
implementation of component b) and c) of the Norwegian 
assisted Project in Croatia for enhancing the capabilities of the 
Croatian Government to build a National Spatial Data 
Infrastructure. Appendix A to the Contract, Oslo, Norway. 
Program Management and Mapping, 2002. CRONO GIP 
Croatian Norwegian GeoInformation Project - Inception study 
report, Zagreb, Croatia. 
Program Management and Mapping, 2002. CRONO GIP 
Croatian Norwegian GeoInformation Project — Data Inventory 
report, Zagreb, Croatia. 
Program Management and Mapping (PMM), 2003. CRONO 
GIP Croatian Norwegian Geolnformation Project — Data 
upgrade specification, Zagreb, Croatia. 
International Organization for Standardization, 2001, ISO/DIS 
19113 Geographic information — Quality principles. 
International Organization for Standardization, 2002, ISO/DIS 
19114 Geographic information — Quality evaluation procedures. 
State Geodetic Administration, 2001, Book of Ordinances, 
Zagreb, Narodne novine br. 55/2001, Zagreb. 
State Geodetic Administration, 2002, Croatian Topographic 
Information System CROTIS, Zagreb. 
  
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