About Sun Adapter for IMS

This topic provides conceptual information about IMS and its Sun Java CAPS Adapter.

About Information Management System (IMS)

IBM’s IMS, is a database and transaction management system that provides an interface for users to access information in various databases via on-line transactions. The IMS/TM (Transaction Manager) is a message-based transaction processor, that handles the execution of specific business application programs. The IMS/DB (Database) is an entirely separate component providing access to the IMS hierarchical database for applications running under the IMS/TM, as well as IMS transaction monitor and OS/390 batch jobs.

About the IMS eWay

The IMS Adapter enables Sun Java CAPS ESB to connect with IBM’s IMS/TM mainframe applications through IBM’s IMS Connect.

The IMS Adapter provides access to the Input and Output Descriptors (MID/MOD) of the IMS applications without requiring changes to the application. By capturing the field contents before screen formatting, the IMS Adapter is not affected by cosmetic changes to the application’s screen design.

The IMS Adapter includes the IMS Message Format Service (MFS) Wizard conversion utility to facilitate the creation of input and output Object Type Definitions (OTDs) from IMS MFS files.

The implementation of the IMS Adapter is in accordance with IBM’s IMS Connect Guide and Reference. These documents describe the OTMA protocol and contain important prerequisite information for the configuration IMS Connect on the mainframe.

A sample project for the IMS Adapter is included on the installation CD-ROM which demonstrates how a non-conversational scenario (simple send/response) is managed.