Create Relations
The verbal description of the subject:
"A Customer places an Order,
an Order contains a Product,
a Customer pays a Payment,
a Payment is paid for an Order."
- (1) Add the entities named in this description to the dictionary.
- (2) Add the relations of the description to the dictionary: e.g. "places"
The entity "Customer" (=Subject) "places" (=Verb which connects a subject to an object) an entity "Order" (=Object). Or the reverse sentence: An entity "Order" "is placed by" an entity "Customer".
Right-click on "Relations" – this opens the context menu "Add..". - (3) Select "Add " -> the window "Add Relation Type" pops up.
- (4) Enter the name of the verbs (forwards and backwards) as described in the two sentences above "place and placedBy". Confirm by clicking OK.