With Application Server, you must select the applicable functionality according to the purpose of the system to be built and operated.

This subsection describes each functionality for executing Enterprise Beans and describes which functionality is best used for which system. The functionality-wise support is described for the following:

• Reliability
  This functionality is best used for a system from which high reliability is recommended.
  This functionality includes functionality for enhancing the system availability (stable operations) and fault tolerance, and functionality for enhancing the security such as user authentication.
  
• Performance
  This functionality is best used for a system that adds value to performance.
  This functionality is used for performance tuning of the system.
  
• Operation and maintenance
  This functionality is best used when efficient operation and maintenance is to be performed.
  
• Extendibility
  This functionality is best used when a system is to be flexibly expanded or reduced, and when the system configuration is to be changed.
  
• Others
  The functionality is used to comply with other individual purposes.
  

The functionality for executing Enterprise Beans includes the Java EE standard functionality and the functionality uniquely expanded on Application Server. When you select the functionality, also confirm the compliance with the Java EE standard, as and when required.

Organization of this section

1.2.1 EJB container functionality

1.2.2 Functionality of EJB Client