A. Only a bottom up approach should be used because the goal of SOI is 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. The overlap between the SOA Services Identified by the two methods are the ones that should