Performance Engineering - Optimization of Check Eligibility

Current Implementation :
On Enroll now FetchDemographicEligibility and FetchCheckEligibilityForPlanDesign execute multiple times with same Criteria with in transaction.

New Implementation :
Optimizing FetchDemographicEligibility and FetchCheckEligibilityForPlanDesign
cache output Criteria/Employee/Effective date wise in hashtable with in transaction whenever same criteria execute it will returns output from hashtable no need to execute same criteria every time in single transaction.
Impacted Area :Enroll Now and Import functionality.
Affected File :GenericEligblityCheck.vb,Eligibility.VB