CA Date Simulator

The architecture of CA Date Simulator on z/OS comprises several key components designed to provide a robust and efficient date and time simulation environment. The central component is the Date Simulator Control Program, which manages the overall simulation process. This program is responsible for initializing the simulation, handling commands, and coordinating the activities of other components.

The Date Simulation Interface is another critical component. It intercepts system calls related to date and time, such as those made by applications to retrieve or set the current date and time. This interface modifies these calls to return the simulated date and time values, ensuring that applications operate with the desired date settings.

Configuration files play a vital role in the architecture. These files store the settings for the simulation, including the simulated date, time zone, and any application-specific exclusions. The system uses z/OS security, such as RACF, for access control.

All actions are logged through SMF records. The communication between components is primarily through z/OS system calls and interfaces. The Date Simulator Control Program interacts with the Date Simulation Interface to manage the simulation, and the configuration files are accessed to retrieve the simulation settings.

There are no external protocols used for communication.