Ontology-Based Discovering of Geographic Databases Content - Advances in Cartography and GIScience - page 325

Figure 9: information on data localization in the database
The second section present more in detail specifications related to the
considered features ( figure 10 ) ; A first part details definitions of attribute
values used to model the specific concept. A second part shows the
constraints that should be satisfied by geographic entities in order to be
included in the database (here, channels are represented by surfaces only if
they are wider than 7.5m).