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Chapter 6 The Cloud
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Figure 6-11
Product Page
Source: Courtesy of Zuilly Inc.
Used by permission

as needed to approve orders, and the Inventory Department verifies the availability of the
inventory needed to fulfill an order.
In an informal, non-SOA-type organization, one salesperson would contact someone he or
she knows in Credit and ask something like, “Can you approve an allocation of $10,000 of credit
to the ABC Bicycle Company?” In response, the credit person might say, “Sure,” and the salesper-
son might note the name of the person who approved the amount. Some days, he or she might
remember to record the date; other days, not so. Another salesperson might do something else,
say, contact a different person in Credit and ask something like, “I need $5,000 in credit for Order
12345,” and that other person in Credit might say, “I don’t know, send the order over, and if I can,
I’ll write ‘Approved’ on it.” Other irregular, but similar, interactions could occur between the Sales
and the Inventory departments.
Such operations are definitely not service-oriented. People are asking for credit verification in
different ways and receiving responses in different ways. The process for approving an order varies

Customers
Credit
Sales Request / Response
Order Department
Requests

Sales
Department

Figure 6-12 Inventory Request / Response Inventory
Approval Request Interactions Department
Among Three Departments