IBM Information Management System (IMS)

IMS is a message-based transaction manager and hierarchical-database manager for z/OS®. External applications can use transactions to interact with applications that run inside IMS.

IMS includes two components:
IMS Database Manager (IMS DB)
A database management system for defining database structure, organizing business data, performing queries against the data, and performing database transactions.
IMS Transaction Manager (IMS TM)
A message-based transaction manager for processing input and output messages. IMS TM manages message queuing, security, scheduling, formatting, logging, and recovery.

In addition to these components, IMS Connect manages communications for IMS, connecting one or more clients with one or more IMS systems. IMS Connect also handles workload balancing, and supports the IBM® supplied client, the IMS TM resource adapter.

The following diagram shows the layers of communication between IBM Integration Bus and IMS.
The diagram shows how the products can connect to IMS.
You can also use the following methods to connect to an IMS system:
  • The WebSphere® MQ-IMS bridge

    The WebSphere MQ-IMS bridge is a component of IBM MQ for z/OS. You can use it to access applications on your IMS system from IBM MQ applications. For more information about the WebSphere MQ-IMS bridge, see IBM MQ Version 7.5 product documentation online.

  • The IMS SOAP Gateway

    The IMS SOAP Gateway is a web service solution that integrates IMS assets in a Service-Oriented Architecture (SOA) environment. For more information, see IMS SOAP Gateway web page.

For more details about how IMS works with IBM Integration Bus, see IMS nodes.

For further information about IMS and its components, see the IBM Information Management Software Library web page, which contains links to the IMS information center and associated IBM Redbooks® publications.