• Figure 2‑1 Migration Software EnvironmentsFor the software developer, there is little that changes. The CICS Runtime preprocessor automatically changes the CICS API that is called. There are some limitations in the command that can be used; these are described in CICS Commands and Parameters Coverage.Figure 2‑2 CICS Runtime ArchitectureTable 2‑1 gives an overview of how the source platform notions have an equivalent on the target platform.
Table 2‑1 Source Platform Notions ART CICS Runtime supports COBOL programs compiled with different COBOL compilers. Refer to Supported Platforms for the COBOL compilers ART CICS Runtime supports. COBOL runtime is required in order to run COBOL programs in ART CICS Runtime.
• COBOL programs should be compiled with -fthread-safe option.
• When using Micro Focus Visual COBOL 2.2, we recommend you set COBOL runtime tunable parameter subsystem_cancel_mode=1, which specifies logical cancel for CBL_SUBSYSTEM cancels. See Micro Focus documentation for more information.