Mapping bf:Work to lrm:Work and lrm:Expression: Towards a set‐theoretical approach

The two bibliographical models currently informing the design of systems for the representation of bibliographical data – the IFLA Library Reference Model (IFLA‐LRM) and BIBFRAME 2.0 – do not seamlessly map onto one another. In particular, there are conceptual problems in mapping between the bibliographical entity BIBFRAME:Work and its counterparts, IFLA‐LRM:Work and IFLA‐LRM:Expression. To mitigate these difficulties, we argue for applying a set‐theoretical framework to the mapping between BIBFRAME:Work and IFLA‐LRM:Work and IFLA‐LRM:Expression.