All systems are integrated as separate systems, except that the excavation support system is considered a subsystem of the metro system. The excavation support system was easily integrated as a subsystem of the underground metro system since the subway system also includes soil stabilization and strengthening as a construction phase. When we formed the excavation support system in the metro system, all its features were transferred as a metro station subsystem.

Apart from considering the other system as separate systems, a relationship has been established considering that the metro line provides transportation for those who come to the stadium. In order to develop this relationship, a match was made between the stadium option and the metro station design option. In this way, selecting the metro station option will also determine the stadium design option.

Ontology: integrated_ontology

Figure 1: Rough Diagram of Ontology

Figure 2: Detail ontology