See Tivoli Event Services Manager.
Abbreviation for embedded server management.
Enterprise Spend Management
external security manager. A security product that is invoked by the OS/390 System Authorization Facility. RACF is an example of an ESM.
External Security Manager. A CICS programmable interface to be used by user or vendor-written security packages, such as IBM's RACF.
Abbreviated for embedded server management.
Enterprise Systems Management