Establishing such a vocabulary can lead to a
common enterprise language that is the property of all service-oriented projects. For example,
an investment banking institution that has developed the abstractions known as the credit veri-
fication conceptual service and the loan processing conceptual service should further categorize
and elevate these ideas to a higher level of abstraction and establish the loan concept as a key
item in the organization??™s common dictionary for future reusability purposes. This generalization
process that elevates conceptual services to a higher degree of abstractions is known as taxonomy
establishment.
Activities to Pursue. To achieve these two major service identification and categorization goals,
the following three activities should be pursued:
1. Building conceptual decision trees based on business requirement attributes discovered
in the attribution analysis phase
2. Discovering and cataloging conceptual services by employing conceptual decision trees
3. Establishing organizational concept taxonomies by further categorizing the discovered
conceptual services
Exhibit 5.2 illustrates the three-layer execution of the service identification and categorization
process. The conceptual decision tree appears on the top, conceptual services are depicted
on the middle layer, and high-level categories of organizational taxonomies are identified in the
bottom layer.
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