ISSN : 1225-598X
This study focuses on developing a metadata schema for organizing contextual information of digital textbooks as learning resources, considering technological and educational environments. First, the research examines the national textbook operation systems and identifies the descriptive elements of digital textbooks in different countries. It also reviews the characteristics and functions of digital textbooks as defined by the Ministry of Education. Additionally, international metadata standards and schemas for learning resources, including ISO/IEC 19788-1:2024, OER Schema, and DCMI LRMI, are analyzed. The proposed digital textbook metadata schema is structured with vocabularies such as Thing, Curriculum, Classification Code, Resource, Assessment, Educational Activity, Educational Audience Role, Stakeholders, Attributes, and Resource Metadata. To define the relationships between vocabularies, 18 types of ‘relationships between vocabulary,’ excluding hierarchical relationships, are specified. In addition, this study confirms that the proposed vocabularies and relationship expressions effectively reflect the key concepts and functionalities of digital textbooks emphasized by the Ministry of Education.