Semantic Requirements Engineering - Intentional Perspectives on Information Systems Engineering - page 73

Fig. 5 A goal graph of a train seat reservation system

method. During constructing a goal, when a goal corresponding to an ontological
concept of the ontology appears, the supporting tool of GORA shows the other
ontological concepts relevant to it by using an inference mechanism, and helps the
discovery of new goals and their refinements to sub-goals [ 18] . Figure 6 depicts how
a domain ontology helps stakeholders and an analyst to decompose and refine goals.

Seat reservation
system required

<<concept>>
Reserve

Reservation by
users themselves

requires

<<concept>>
Cancel

Cancellation
enabled

Domain ontology of
Reservation Business

Fig. 6 Using an ontology in GORA