DFSMS Transactional VSAM Services (DFSMStvs) allows you to share VSAM data sets across CICS®, batch, and object-oriented applications on z/OS® or distributed systems. DFSMStvs enables concurrent shared updates of recoverable VSAM data sets by CICS transactions and multiple batch applications. DFSMStvs enables 24-hour availability of CICS and batch applications. DFSMStvs is built on top of VSAM record-level sharing (RLS), which permits sharing of recoverable VSAM data sets at the record level.