This example shows the parameter types of two service providers: AddressMgr and CustomerAccountMgr:
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The AddressMgr service provider requires a view of addresses as it stores the full set of known addresses
for verification against.
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The CustomerAccountMgr requires a view of addresses because it stores customer addresses, and therefore an
address is passed as parameter with a customer account application.
As can be seen, each of these service providers owns their own Address parameter type, which is used in the
specification of their service operations.
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