1. For all temporal eligibility criteria,  a. For all medical concepts (from 1 to n) in the criterion   i. Match1 the (CUI in the criterion, CUI in structured data) ^ … ^ (Matchn(CUI in the criterion, CUI in the structured data)   ii. Match1 (Phrase in the criterion, the in Phrase structured data) ^ … ^ (Matchn(Phrase in the criterion, Phrase in the structured data) 2. If i OR ii returns true, then the criterion can be resolved by the structured data 3. Repeat step 1. by replacing “structured data” with “unstructured data”  a. If step i OR ii returns true,   i. the criterion can be resolved by the unstructured data   ii. else the criterion can be cannot be resolved by a concept match across unstructured data 4. If in step 2, we get true for “structured” as well as “unstructured data”,  a. the criterion can be solved using either the structured or unstructured data.