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Michael Bell

"Service-Oriented Modeling (SOA): Service Analysis, Design, and Architecture"

Decision trees
can facilitate the decomposition of the investment trading product into subordinate and smaller
logical components, such as fixed-income trading or equity trading, to ensure a higher degree of
asset reusability for the enterprise.
Conceptual Service Identification Process. The process in which conceptual services are discovered
is straightforward and requires domain expertise to facilitate the categorization of these
94 Ch. 5 Conceptual Service Identification
High
Liquidity?
High
Return?
High
Return?
Y
Y
N
Public Equity
Conceptual
Service
Money
Market
Conceptual
Service
Y N
Real Estate
Conceptual
Service
CD
Conceptual
Service
N
Conceptual
Services
Sweet Spot
Attributes
Business
Priority
Level 1
Business
Priority
Level 2
Trading Product
Business Requirements
EXHIBIT 5.5 DERIVATION OF CONCEPTUAL SERVICES
initial abstractions. Domain expertise means acquaintance with the organization??™s business strategy
as well as familiarity with firm-wide business processes and products. How can domain
knowledge facilitate the discovery of organizational conceptual services? Business knowledge is
the key factor in the conceptual service discovery process. Always start from the root level and
traverse the tree down to the very bottom node. When the analysis has reached down to the last
tree node, it should be possible to deduce the proper concept.


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