4. CA MICS Facilities › 4.7 Calendar Derivations › 4.7.2 Non-Standard Calendar Modifications

4.7.2 Non-Standard Calendar Modifications

This section explains how calendar systems implemented in
CA MICS can be modified to accommodate unusual calendar
requirements.  Attention has been given to the decision
processes required to effectively code CPLXDEF or SITE
parameters, make modifications to the default date routines,
and make the maintenance considerations involved in
supporting a particular calendar.

Note:  CA MICS Accounting and Chargeback lets you define a
unique accounting calendar, separate from the global CA MICS
calendar definitions.  You can use it to meet your
requirements for chargeback and accounting relative to your
company's fiscal calendar, while continuing to use the
standard 12-month calendar for the majority of your CA MICS
information.  See the CA MICS Accounting and Chargeback Guide
for more information before altering the global CA MICS
calendar.

Each section specifically addresses a particular kind of
fiscal calendar strategy.  The sections are:

    1 - Twelve Month Calendar Modifications
    2 - Thirteen Month Calendar Modifications
    3 - Calendar Modifications for 445/454/544
    4 - Whether to Use DWMY12 or DWMYWK1 Date Macros
Considerations For Capacity Planning

------------------------------------

Sites commonly modify the number of years of data to keep or
forecast in their CA MICS databases. When deciding how many
years of data to keep or forecast for your site, consider how
you plan to use the data in the database.

If you are simply running data into CA MICS and are not
building any MICF inquiries that would generate dates into
the future, as in forecasting, then probably 2 or 3 years is
plenty.  However, if you have the CA MICS Capacity Planner,
you will very likely need to specify more.

How many more? If you are going to forecast data five years
beyond the present date, then CA MICS will need to know about
those fiscal years.  If you forecast less, then CA MICS needs
to know less.

The CA MICS Capacity Planner builds files of highly
summarized data used by the capacity management specialist
and others to perform capacity planning tasks.  The default
maximum number of months or weeks of data used in building
and maintaining these files is 60 months or weeks.  If you
use the default, then CA MICS will need to know about fiscal
years spanning the past five years (60 months).  If you use
more, once again, you will need to specify more.

The number of years that you need to specify to CA MICS
depends on the timespan of data you foresee being used in
CA MICS.  Consider the following example:

If you wanted to take the default 60 months of data used
in the CA MICS Capacity Planner for maintaining MONTHS
level files and also wanted to be able to forecast up to
five years into the future, you will need five years of
specifications to handle the forecasts, one year for the
present, and five past years to handle the data
management specifications you wanted for Capacity Planner
files. A total of 11 fiscal year start dates should be
specified in CA MICS.

The dates you specify this year for doing 5 years of
forecasting will need to be extended next year (since one
year has passed).  Keeping this in mind, you should review
your specifications yearly to ensure that they will still do
the job for you.