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Question 13: Bottom-up service Identification analyzes existing systems to Identify SOA Services. Top-down service
identification analyzes business processes to identify SOA services.
Which statement best describes the relationship between top down and bottom-up service identification in
Service-Oriented Integration?
A. Only a bottom up approach shouldbe used because the goal of SOIis to provide SOA Services
exposing existing systems.
B. Only a top-down approach should be used because the goal of SOI is composite application assembly.
C. A bottom-up approach should be used to identify which SOA Services are built; then a top-down
approach should be used to determine which SOA Services are used by each composite application.
D. A top-down approach should be used to determine the needed SOA Services; then a bottom-up
approach should be used to determine how existing source systems can meet the requirements top-down
approach should be used by business, and a bottom-up approach should be used by IT.Theoverlap
between the SOA Services Identified by the two methods are the ones that should
Correct Answer: D