Matching and survivorship using metadata configuration based on an n-layer model

Abstract

Among other techniques, techniques for dynamic survivorship, cross-tenant matching, and lineage entity identifier (EID) promotion are described. A system utilizing these techniques can include an EID assignment engine, a dynamic survivorship engine, and a data item update engine. The dynamic survivorship engine can include a dynamic matching subengine, a dynamic merging subengine, a lineage EID promotion subengine, and a legacy EID retention subengine. A method utilizing these techniques can include assigning a first EID to a first data item and a second EID to a second data item; matching the first data item with the second data item in real time in a multitenant EID lineage-persistent relational database management system (RDBMS); merging the first data item with the second data item to create a merged data item; promoting the first EID to a primary EID for the merged data item; and retaining the second EID as a legacy EID of the merged data item distinctly in association with a portion of the merged data item obtained from the second data item.

Dependencies are inferred from the claim text.