Abstract: After the release of the FR family models, the International Federation of Library Associations and Institutions (IFLA) has been actively promoting their integration and launched the world-wide review of IFLA-Library Reference Model (IFLA-LRM), on February 2016, which is an integration and enhancement of the three models of FR family. The definite version was endorsed by IFLA Professional Committee in 2017. This paper analyzes the similarities and differences between IFLA-LRM and FR family models in terms of model structure, users’ tasks, entities, attributes and relationships, to provide a starting point for further understanding and implementing IFLA-LRM.

Key words: FRBR, FRAD, FRSAD, IFLA-LRM, Comparative study