
Chapter 3. Service Data Objects 67
Figure 3-6 Typical single cardinality relationship
3.3.2 Single-cardinality relationships and data without ownership
Typically, each parent business object owns the data within the child business
object that it contains. For example, if each Customer business object contains
one Address business object, when a new customer is created, a new row is
inserted into both the customer and address tables. The new address is unique
to the new customer.
Likewise, when deleting a customer from the customer table, the customer’s
address is also deleted from the address table. However, situations can occur in
which multiple ...