This report introduces the outline of the "digital archive theory" lecture which has been running in Sophia University since fiscal 2016.The lecture consists of three elements, understanding, utilization, and construction of archive, and by experiencing each process in a practical manner,it was proved to that this method was extensively effective in teaching students how to read and use digital archive, as well as understand the current status, importance, and issues of digital archive. From now on, we aim to contribute to the development of digital humanities and training of digital archivists at the undergraduate level, as well as to improve service learning by cooperation with existing archive institutions.

Digital archives related to the Great East Japan Earthquake started to be constructed spontaneously by various organizations immediately after the disaster occurred, and several dozen have been created in the six and a half years since the earthquake, with millions of records open to the public. In this paper, we will summarize the cases and transitions of earthquake digital archives constructed by various organizations after the Great East Japan Earthquake, and clarify the contents and components of digital archives of the earthquake disaster of local governments. Furthermore, we will clarify the challenges related to earthquake disaster digital archives of the Great East Japan Earthquake and discuss the future of earthquake digital archives.

The author visited French National Digital Archive Organization, French National Library (BnF) and France National Institute of Audio- Visual Research (INA) for research. BnF's Gallica project is digitizing books and periodicals at a budget of about 3 billion yen a year, and has already made 2.1 million newspapers and magazines, 1.2 million images and 550,000 books available online. BnF is a founding member of Europeana and is still driving it strongly. INA collects 14 million hours of TV programs as a legal deposit agency for television and radio programs and makes them available to academic researchers through INAthèque. In addition, it makes 2,000,000 hours of programs commercially available to the world through INAmediapro. Part of the video is open to the public through ina.fr.