A pilot study towards cross-searchable social science data archive in Japan

Rikkyo University Data Archive (RUDA) is a Japanese data archive established by the Rikkyo University Center for Statistics and Information (CSI) in 2011. Currently, RUDA and National Institute of Informatics (NII) collaborate to establish a cross-searchable data repository integrating different archives in Japan. In this poster, we would like to share the lessons learned from the introduction of RUDA datasets to the NII repository. RUDA is constructed on DSpace, and thus metadata is described under (qualified) Dublin Core. In order to establish cross-searchable infrastructure where compatibility between different metadata schemes is satisfied, appropriate mapping from DC to DDI is required. This poster discusses how RUDA formulates mapping schemes in which semantics are much emphasized. In addition, we would like to discuss to what degree (meta)data sharing is possible. In the above collaborative project, a cloud-type repository system developed by NII is utilized to accommodate and publish metadata offered from data archives. Since such a project where data archives offer their metadata to another institute is less popular, it should be reconsidered to what extent data archives are allowed to offer their metadata while balancing with responsibility and usability