Their
structures are discussed in the sections that follow.
??? Composite Service Set
??? Service Cluster Set
??? Atomic Service Set
COMPOSITE SERVICE SET. Conceive a composite service structure as a set that can be leveraged
to aggregate service members that share common business or technology attributes, joining forces
to provide a solution. The composite service internal composition can be regarded as nested sets
that enable hierarchical relationship between aggregated services. The furnished set operations
are employed to assemble composite service structures when appropriate as well as to decompose
their internal layers when necessary.
Exhibit 7.1 depicts the preferred customer account composite service and its aggregated
services. Note the nested set structure that creates three layers, each of which presents a composite
service that aggregates its own constituents:
??? The preferred customer account service aggregates the preferred customer business
account service.
??? The preferred customer business account service contains the business loan account service,
the business savings account service, the business checkin account service, and the
account utility service.
??? The innermost composite service, the account utility service, is composed of the account
lookup service and the account balance service.
SERVICE CLUSTER SET. A service cluster is another formation that can be regarded as a set
structure.
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