Sharing data across transactions

CICS® has several facilities for sharing data across transactions. You can use the Common Work Area (CWA), the TCTTE user area (TCTUA), the COMMAREA, the display screen, or channels and containers.

Data stored in the TCTUA and the CWA is available to any transaction in the system. Subject to resource security and storage protection restrictions, any transaction can write to them and any transaction can read them.

The use of some of these facilities might cause inter-transaction affinities. See Affinity for more information about transaction affinities.