STEPLIB-Rx

STEPLIB-Rx enhances TSO functionality on z/OS by providing a lookaside facility for STEPLIB programs and enabling multiple ISPF sessions. It optimizes TSO performance and improves developer productivity. STEPLIB-Rx is often used as a replacement for CA TSOPLUS.

**Architectural Components:** * **ISPF Session Manager:** Manages multiple concurrent ISPF sessions, allowing users to work on multiple tasks simultaneously. Communication likely uses standard z/OS inter-process communication. * **STEPLIB Lookaside Cache:** Optimizes access to STEPLIB programs by caching frequently used libraries.

The cache manager reduces overhead and improves response times. * **Monitoring and Logging:** Provides real-time performance metrics, resource utilization statistics, and error logging. These metrics can be used to identify and resolve performance issues.

STEPLIB-Rx likely uses TSO commands and ISPF panels for administration. It integrates with z/OS security systems such as RACF for authentication and authorization. The access control model is probably based on z/OS security features, potentially using role-based access control (RBAC) to manage user permissions.

Competing products include CA TSOPLUS, but STEPLIB-Rx distinguishes itself by offering enhanced performance and usability. Audit logging capabilities are likely provided to track user activity and system events.