The calendar duration is also
defined in open the Define the Calendar Pattern page. The number of past years to be
included in the calendar (as defined by the Number of Past Years: under the Calendar
Duration) cannot be altered once the application calendar is finalized and saved,
just like the calendar pattern. This means that careful consideration must be given
for selecting the number of past years to be included in the calendar. The number
of future years to be included in the calendar is defined by the Number of Future
Years: under the Calendar Duration. This can be extended for an application as years
roll by. Again for sake of simplicity, we have used the default value of 1 in both the
Calendar Duration fields for the examples in this chapter.
The next page in the wizard depends on the calendar pattern selected in the Define
the Calendar Pattern page. For complex calendar patterns the next page could be
Define Weeks or Add Extra Weeks (Optional). By selecting the appropriate calendar
pattern and by correctly utilizing the options that follow, almost all types of fiscal/
business calendars can be modeled within the PPS Planning system. In the case of
our simple Gregorian calendar example, the next page in the wizard is the Select
Optional Frequencies page.
The time frequency is used for grouping data. As can be seen on this page,
Year, Month, and Day are required frequencies and cannot be removed. Optional
frequencies include half year, trimester, quarter, and week, depending on how you
define the monthly periods.
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