Diorama Nusantara is a three-dimensional artistic representation that depicts the historical conditions of the archipelago and the development of human civilisation from prehistoric times to the modern era. This study attempts to observe the application of the concept of convergence for documentary institutions in Diorama Nusantara at the Department of Archives and Library of Purwakarta. This study aims to reveal the convergence of documentary institutions. This study uses a qualitative research method by applying in-depth interview techniques to nine informants who are employees who manage Diorama Nusantara. The results of the study indicate that the development of Diorama Nusantara, which began with the desire of the Regent of Purwakarta, Dedi Mulyadi, aims to reveal the history of Purwakarta and the development of civilisation in Indonesia from time to time. The understanding and perception of Diorama Nusantara managers emphasise the importance of collaboration between galleries, libraries, archives, and museums in preserving the wealth of history and culture in Indonesia as a national asset. The synergy of Diorama Nusantara manifests this.

Diorama Nusantara; documentary institution convergence; preservation of history and culture; information source services; Department of Archives and Library of Purwakarta.