Open Access Policy, Digital Preservation Policy & Repository Policy


This journal provides immediate open access to its content on the principle that making research freely available to the public supports a greater global exchange of knowledge. Articles are published under the terms of a Creative Commons license which permits use, distribution and reproduction in any medium, provided the original work is properly cited.


Our Journal has electronic backup and preservation of access to the content via PKP Preservation Network (PN). The PKPPN provides free preservation services for our journal as it meets a few basic criteria required by PKPPN.  

Our Journal also has PORTICO Membership as alternate preservation options;

JDDT is committed to the long-term preservation of its content. All articles published by the journal are preserved by PORTICO. In addition, journal encourage authors to archive (Self-Arcive) the published version of their articles on their institutional repositories and as well as other appropriate websites( see Sherpa RoMEO Journal).


The journal allows authors to deposit all versions of their paper (submitted, accepted, and published versions) in an institutional or other repository of their choice.

OCLC/OAIster (OAIster: Catalog of open access resources | OCLC)


JDDT is a Sherpa RoMEO Journal. The journal permits and encourage authors to archive any version of their article they find most suitable, including the published version on their institutional repository and any other suitable website.