System Global Event Records

System Global Event records store information about global events, which group together Actions requiring a system shutdown so that they will be performed at the same time, thereby maximizing the availability of the system. The following table provides an alphabetical list and description of the fields that exist for the System Global Event family. The information in the table reflects the baseline state and behavior of these fields. This list is not comprehensive.

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Field Caption	Data Type	Description	Behavior and Usage
Description	Text	A text field that stores any additional information about the Global Event.	You can enter text manually to define this value.
Driver Type	Character	Indicates whether the Global Event will be started with an action or on a certain date.	This value is required. The following options are available: Action Driven: The Global Event will start on the date the driving Action(s) begin and will trigger the start of any other Actions that are assigned to the Global Event. If more than one Action has been designated as a driving Action, the Global Event will occur when the first driving Action occurs. If no Action has been designated as a driving Action, the Global Event will not occur. Date Driven: The Global Event will start on the date in the First Date field. If no date exists in the First Date field, the Global Event will start one interval period, as defined by the values in the Interval and Interval Units fields, into the simulation.
Event Definition	Text	The Actions assigned to the Global Event.	This value that is used internally by the GE Digital APM system to store information identifying the Actions assigned to the Global Event. This field does not appear on the System Global Event datasheet.
First Date	Date	The date on which the Global Event will occur for the first time.	If no value exists in the First Date field, date-driven Global Events will start one interval period, as defined by the values in the Interval and Interval Units fields, into the simulation. This field is disabled in System Global Event records that contain the value Action Driven in the Driver Type field.
GUID	Character	A value that uniquely identifies the record within a System Reliability Analysis.	This value is generated automatically by the GE Digital APM system. In System Reliability Analyses, GUIDs are used to identify records because Entity Keys will not exist until a record is saved. Since a System Reliability Analysis may contain unsaved records, it is necessary to use a value that uniquely identifies those records within the system. This field does not appear on the System Global Event datasheet.
Interval	Number	A numeric value that indicates how often the Global Event will occur. For example, if the value in the Interval field is 4 and the value Months exists in the Interval Units field, then the Global Event will occur every 4 months during the simulation period.	This field is enabled only if the value in the Driver Type field is Date Driven and the One Time Event check box is cleared.
Interval Units	Character	The time units associated with the value in the Interval field.	You can select a value from the following options: Hours Days Weeks Months Years
Max Advance Duration	Number	A numeric value that identifies the maximum time that an Action can be advanced forward to be completed with the other Actions assigned to the Global Event. For example, if the Max Advance Duration field contains the value 3 and the Max Advance Duration Units field contains the value Months, then any Action that would be performed 3 months or less after the Global Event can be moved forward in time and completed with the rest of the Actions that are assigned to the Global Event.	This value is set to 0 (zero) by default.
Max Advance Duration Units	Character	The time units associated with the value in the Max Advance Duration field.	You can select a value from the following options: Hours Days Weeks Months Years
Max Delay Duration	Number	A numeric value that identifies the maximum time that an Action can be delayed to be completed with the other Actions that are assigned to the Global Event. For example, if the Max Delay Duration field contains the value 2 and the Max Advance Duration Units field contains the value Weeks, then any Action that would be performed 2 weeks or less before the Global Event can be delayed in time and completed with the rest of the Actions that are assigned to a Global Event.	By default, this value is set to 0 (zero).
Max Delay Duration Units	Character	The time units associated with the value in the Max Delay Duration field.	You can select a value from the following options: Hours Days Weeks Months Years
Name	Character	The name of the Global Event.	You can define this value manually. This value is used to identify Global Events in System Reliability Analyses.
One Time Event	Logical	Indicates whether the Global Event will occur one time or can be repeated more than once.	If this check box is selected, the Global Event will occur once. If this check box is cleared, the Global Event will occur more than once. For example, you might create an Action to replace an expensive piece of machinery. If the Action requires a complete shutdown, to reduce total downtime of the system, you could create a one-time Global Event with the One Time Event check box selected that would reschedule any assigned Actions to be completed during the desired shutdown. In contrast, Actions that are repeated several times would be assigned to a recurring Global Event with the One Time Event check box cleared because the Global Event would be needed several times to minimize downtime in a simulation period.