Abstract:

Dissertations are academic research papers written by postgraduate or PhD students under the guidance of tutors in order to obtain the degree, which have creative insights and thinking, and are of high academic research value and useful value. This paper takes the metadata of dissertations as research objects, and constructs the metadata framework of dissertation discovery systems with the combination of dissertations and resource discovery systems. Through case studies, comparative analysis and empirical analysis, we investigated and compared metadata contents of seven representative dissertation databases at home and abroad， such as National Library of China, China Institute of Science and Technology Information, NDLTD and so on. According to DC, XMetaDiss and the requirements of dissertation resource discovery systems, we constructed the metadata program of dissertation resource discovery system which has 20 core metadata. On the basis of the system's metadata standards and established mapping rules, we completed the conversion of multiple source metadata to system metadata, and selected a western dissertation to validate the established mapping mechanism and test its rationality and practicability. The conclusion of this paper can provide reference for the integration and sharing of dissertations resources, so as to serve the development of dissertations resources.

Key words: Dissertation；Metadata； Metadata standards, Metadata mapping； Resource discovery system