as 
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6. CONCLUSION 
The object-oriented model is a powerful model for 
new generation of DBMS. The concept of complex object 
integrates different types of objects into one 
comprehensive entity. The vector data, raster data 
and attribute data can be combined together by the 
object-oriented medel. A simple OODBMS which is 
implemented in an OOP language Borland C++ has been 
used to develop an object-oriented pictorial informa- 
tion system for photogrammetry (OPIP). Preliminary 
experiments show that this OODBMS has powerful exten- 
sibility and can be used for engineering applications 
such as CAD, GIS, PIS and OA etc. 
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