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Specification of scheduling criteria for rules can be simplified by calendar definitions. A calendar definition consists of a defined schedule (for example, Mondays through Fridays in each week in each month) that can be applied to rules.
Calendars are defined in the IOA Calendar facility. Each calendar is assigned a unique name, that can be specified in rule definitions. A particular calendar (meaning, schedule) only needs to be defined once.
Specification of the name of a calendar in rule definitions causes that calendar schedule to be used to schedule those rules.
Two types of calendars can be defined: Regular and Periodic.
Regular calendars contain schedules that can be easily defined using Basic Scheduling parameters, These calendars consist of scheduling date or days (of the week) that can be fixed according to monthly patterns.
Example 1
WEEKDAYS |
Calendar schedules rules each Monday through Friday in each month. |
WEEKENDS |
Calendar schedules rules each Saturday and Sunday in each month. |
QUARTERLY |
Calendar schedules rules on the last day of each quarter: March 31, June 30, Sept. 30, Dec. 31. |
Regular calendars are useful when many rules have the same schedule. The schedule can be defined once in a calendar and the calendar can be specified in relevant rules to individually define that schedule in each rule definition
Periodic calendars are useful in situations where basic scheduling criteria would be difficult to define because they do not easily conform to fixed day or date of the week or month formatting.
Example 2
PAYCAL |
Schedules missions (for example, payroll) every other Wednesday. Scheduling occurs on the first, third, and (if there is one) fifth Wednesday of some months. Scheduling occurs on the second and fourth Wednesday of other months. |
The IOA Calendar facility is accessed by option 8 of the IOA Primary menu. It is described in Online Facilities.
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