The following example, represented by the image of the rule expression editor that follows, shows a typical Day of Week Date-Time expression. This rule fires when Analytic Engine memory consumption exceeds 300 MB and the day of the week is prior to Tuesday. This example uses a compound expression to combine a Simple KPI expression with a Date-Time expression that specifies a day of the week. Note that the second operand of the Date-Time expression could alternatively use the Number operand with a value of 2 to represent Tuesday.