Evaluation of experiences of using linked data in preparation and exposing National Bibliographies in some countries of the world

The study was concerned with determining the importance of using linked data techniques in preparing and publishing national bibliographies and the consequent benefits for the library and information community and institutions for preserving and making available human heritage, and what they can contribute to serving the needs of multiple categories of users, led by publishers, librarians, and those in charge of libraries and information services and researchers in general. And that is by monitoring the most prominent experiences and applications of national libraries in publishing and exposing their national bibliographic data using linked data: the Swedish National Library, the German National Library, the British National Library, and the Finnish National Library. The study took a descriptive analytical method as its approach, and prepared a checklist, which included 38 elements distributed over seven axes, in order to analyze and evaluate the most prominent foreign experiences of national libraries that use the linked data in publishing and exposing their national bibliographies data, and indicating the strengths and weaknesses of them, and indicating the elements of strength and weaknesses of them, to benefit from the results of this analysis and evaluation in developing the proposed vision of how to prepare and expose the current Egyptian national bibliography " Nashrat Al-idea " data using linked open data.