Introduction to the IMS/DC Execution Option

IMS™ on z/OS® and MVS™ generally refers to a product providing two functions:

• Transaction management (IMS TM or IMS/DC)
• Database management (IMS/DB)

The IMS/DC Execution Option documentation refers to the transaction management function. Although often referred to as IMS TM, it will be referred to in this document as IMS/DC.