16 SERVICE ANALYSIS PROPOSITION
275
276 Ch. 13 Service-Oriented Logical Design Composition
Banking
Account
Management
Atomic
Service
Savings
Account
Composite
Service
Checking
Account
Atomic
service
Account Utility
Composite
Service
Lookup
Account
Atomic
Service
Account
Balances
Atomic
Service
Trading
Account
Management
Atomic Service
Equities
Trading
Account
Atomic
Service
Fixed-Income
Account
Atomic
Service
EXHIBIT 13.17 FINAL DESIGN COMPOSITION SOLUTION DIAGRAM
composition diagram depicts the account utility composite service and its two aggregated
services as members in a hierarchical structure by using the hierarchical composition
style??”remember, hierarchical structures are typical to an internal formation of a composite
service.
??? The account utility service is linked to the banking account and the trading account atomic
services by the network design composition beams??”indicating a network composition
style is employed.
??? The banking account management, savings account, and checking account services, depicted
on the left, form a hierarchical design composition style. Note that the banking
account management atomic service is the topmost entity, and it maintains a bidirectional
apparent relationship with its offspring. In addition, there is no containment relationship
between these services. However, this hierarchical arrangement is possible because the
banking account management atomic service is a more general account entity.
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