When eligibility is determined within a product delivery case (for CER-based products) the system retrieves any input data which affects the case's eligibility and entitlement from the relevant entities and creates CER rule objects in memory which are used by CER to perform calculations on that data. This includes the creation of a "case" rule object responsible for calculating the determination result for a case. A determination result includes the eligibility, entitlement and explanation for the lifetime of a case, and a request to calculate this result can occur in either a "active" or "reactive" way.
The following sections give a high-level summary of: