we examine the mapping between the model and vocabulary in LRM and those of BIBFRAME and identify similarities and differences between them. Moreover, we examine the merging of the models and vocabularies of LRM and BIBFRAME and demonstrate their merged model and vocabulary with some possible options. Necessary procedures for merging multiple models and vocabularies beyond their mapping are examined. It is important to clarify the necessary procedures for merging as well as possible options involved in the merging of models and vocabularies for the bibliographic universe, in particular those having some similarities and differences.