Define Shutdown Procedures

Shutdown specifications are inherited per phase. So if a SHUTINIT command is defined for the instance and both SHUTINIT and SHUTNORM commands are defined for a class, the instance inherits the SHUTNORM commands from the class.

Furthermore, command and reply definitions for one phase are inherited together. So if for SHUTFORCE a command is defined for the instance, and the class has a reply defined for SHUTFORCE, nothing is inherited by that instance.

Changes within inherited data result in creating definitions for the current application. So if for a phase, commands and reply definitions are inherited, and then commands are modified, both the reply and the command definitions become data of the current application. If only commands are inherited for a phase, and then reply data is specified, the command definitions are also copied to the phase definition of the current application.