4 BUSINESS TIER INTEGRATION ENVIRONMENT
model of an enterprise. Take, for example, the franchise business model. This domain grouping
approach permits distribution of its business outlets while allowing them to make financial decisions
on their own. Similar organizations embrace the business tier approach because they are
geographically dispersed.
Business tiers are the major contributors to the distribution of systems across organizations
(distribution methods are further discussed in the Business Domain Distribution Formation
section). A distributed business environment commends dispersal of its information technology
(IT) operations across multiple geographic locations as well as distribution of its technological
assets. An agile technology environment must adapt to new business formations, aligned with
business missions, strategies, and business models.
Service-oriented business integration efforts should also be aligned with the business tiers
of the organization. This business partitioning scheme that is formed by various organizational
tiers commends that service integration should comply with the fundamental business structure of
the enterprise. Atomic and composite services, and service clusters should become integral parts
of corresponding business tiers to support their operations and provide targeted solutions.
Can a service be integrated with multiple tiers? This scenario is possible.
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