IBM BPM, V8.0.1, All platforms > Migrating and upgrading your IBM BPM environment > Migrating from other products > Migrating from WebSphere Studio Application Developer Integration Edition > Additional migration information > Create SCA Components and SCA Imports for the services in the application for rewiring > Migrating a J2C-IMS service
Advantages and disadvantages for each of the J2C-IMS service rewiring options
There are advantages and disadvantages for each of the J2C-IMS service rewiring options.
The following list describes both options and the advantages and disadvantages of each:
- The first option uses the standard SCA componentry to invoke the IMS service.
- The first option has some limitations:
- The SDO version 1 specification API does not provide access to the COBOL or C byte array – this will impact customers working with IMS multi-segments.
- The SDO version 1 specification for serialization does not support COBOL redefines or C unions.
- The second option uses the standard JSR 109 approach to connect to the IMS service. This functionality is available as part of Rational Application Developer.