Control-O/COSMOS Rules

Many Control-O/COSMOS tasks are performed using specially defined Control-O rules. Throughout this chapter, method rules have been mentioned as the rules that perform the actions that bring an object to its desired status. However, keep in mind the following points:

• Method rules do not work alone. They work together with another rule, called COSFSMAC.
• There are other sets of rules (besides COSFSMAC and Method rules) that perform functions other than bringing an object to its desired status.

The following rules and types of rules work together according to function. They are described in detail in this section.

• COSFSMAC Rule and Method Rules

  These rules perform the changes required to bring an object to its desired status.

• Control-O/COSMOS Initialization Rules

  These rules are used in Control-O/COSMOS initialization.

• System Event Detection Rules, The COSELECT rule, and Filter and Action Rules (including Generic Action rule COSACT99)

  These rules work together to detect system events (for example, the starting up or bringing down of a started task) and update the appropriate Working Object database with the information.

• User-Defined Action Rule COSACT98

  This rule is triggered by option R in the Object Status screen, and can be used to define a customized action to be performed when this option is chosen.

• Miscellaneous Rules

  Several rules that perform miscellaneous functions.

A list of local and Global variables used by Control-O/COSMOS rules is provided following the rule descriptions.