5.1.7.1 IfcSingleProjectInstance

5.1.7.1.1 Semantic definition

The global rule verifies that only a single (as maximum) instance of IfcProject exists.

5.1.7.1.2 Formal representation

RULE IfcSingleProjectInstance FOR
 (IfcProject);
 
    WHERE
      WR1 : SIZEOF(IfcProject) <= 1;
END_RULE;