IBM Developer for z/OS

The architecture of IBM Developer for z/OS (IDz) is centered around an Eclipse-based integrated development environment (IDE) that provides a modern interface for mainframe application development. The main components include the Eclipse IDE, the Remote Systems Explorer (RSE), and the optional JES Job Monitor (JMON). The Eclipse IDE provides the user interface, code editors, and debugging tools.

The RSE acts as the client-side component that connects to the z/OS host, enabling developers to access mainframe resources, submit jobs, and manage files. JMON provides a graphical interface for monitoring and managing JES jobs. Communication between the IDE and the z/OS host occurs over TCP/IP.

The RSE uses protocols such as SSH and FTP to securely transfer data and commands. The IDE uses configuration files within the Eclipse environment to manage settings such as connection profiles, editor preferences, and build configurations. The RSE provides the interface for host connectivity and resource management.

The IDE supports various programming languages, including COBOL, PL/I, Java, and C/C++, allowing developers to work with diverse application types within a single environment. The IDE also integrates with version control systems like Git. The system uses the z/OS host's security mechanisms for authentication and authorization.

The architecture is designed to provide a robust and efficient development environment for mainframe applications, improving developer productivity and reducing development time. IDz does not replace the mainframe, but provides a modern interface to develop and maintain applications on the mainframe.