Time Interval Setup

The time interval defines the span of time for the sales history to be used to determine the amount of history that is retained when SKUs are dropped. A group of intervals can be defined. Gaps between intervals are permitted; however, intervals cannot overlap.

Figure 3-19 DT Setup Time Interval

Description of "Figure 3-19 DT Setup Time Interval"

You should select a time interval for which the historical assortments are reasonably representative of the assortments that will be used in the CMPO application. Because the time interval is used to calculate the substitutable demand information, selecting a representative interval provides substitutable demand information that is highly relevant to the actual application of demand transference in CMPO. Typically, the most representative time period is a recent time interval, since that is generally when assortments are most similar to the current assortments. If you use a time period that is not recent, you run the risk of using assortments that are not as similar to the current ones. You should also make sure not to select an interval that is too large, because a large interval necessarily includes several assortment changes within that interval. An interval size of approximately four weeks is recommended.

The fields that define a time interval are:

Table 3-22 Setup Time Interval: Fields

Field Name	Field Description
Fiscal Year	The fiscal year for the time interval.
Fiscal Period	The fiscal period within the fiscal year (Fiscal Quarter, Fiscal Period, or fiscal Week).
Start	The time unit when the time interval specified in Fiscal Period begins.
End	The time unit when the time interval specified in Fiscal Period ends.