As described, decisions which share the same financial values will be rolled-up into one decision. The problem is that the rolled-up decisions will result in processed ILIs with cover periods which may cross between two different decisions. In the case of reassessment, these processed ILIs would not be recognized for a reassessment period since their cover period would not fall completely within the reassessment period.
In these circumstances, the eligibility and entitlement engine can traverse through existing rolled-up decisions searching for the earliest decision date and extend the reassessment period to include decisions on or after this date. The eligibility and entitlement engine can then locate the different decisions which were merged and virtually separate them in order to determine the exact processed amount which relates to the specific decisions and the exact cover period the amount relates to. By doing this, the eligibility and entitlement engine is able to find processed ILIs within the reassessment period which are required to complete the reassessment.
A business scenario which demonstrates this is a family allowance case which pays out money for all non-school attending children in a household. In this scenario, James Smith has one child, Lisa, who is eligible for $50 per week. On the day that Lisa starts school and becomes ineligible for the $50 is the same day her brother Robert is born. Since Lisa and Robert's details are the same and contiguous, their eligible decisions are rolled-up into one financial component. The delivery pattern for these payments is 'weekly on a Monday'.
If at some future date there is a change detected which triggers reassessment, the eligibility and entitlement engine can traverse through the rolled-up decisions for Lisa and Robert and extend the reassessment period to the earliest decision date. Say, for example, the change in circumstance is that Lisa actually started school 3 days after Robert was born. Thus, on the week Robert was born, both Lisa and Robert are eligible for the family allowance.
The eligibility and entitlement engine can traverse back to the earliest date on which Lisa was eligible and search through the rolled-up decision for each separate decision. It will find the point at which Lisa and Robert's decisions were merged. The eligibility and entitlement engine can virtually separate these decisions. The decision change can then be matched up to the specific decision relating to Lisa in order to determine the reassessed amount.