Handling Transactions and Resources in Applications 
The Transactions and Resource Handling component is a system that manages the execution of the transactions in AS Java, transaction propagation to other clients or application servers, as well as the usage of resources in these transactions. The functions of this component enable AS Java to:
Work in a distributed environment to provide scalability and increased performance
Access other resource systems, such as databases, Java Message Service (JMS) providers, and Enterprise Information Systems (EIS)
Integration
This component defines a uniform way for transaction usage and access to resources. It is used by the container services (EJB Container, Web Container, Application Client) to provide access to resources for the Java EE application components deployed in them.
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