Java-based digital library portal for geography education

• Main Authors: LIU, Zehua, YUAN, Hai, LIM, Ee Peng, YIN, Ming, GOH, Dion Hoe-Lian, THENG, Yin-Leng, NG, Wee-Keong
• Format: text
• Language: English
• Published: Institutional Knowledge at Singapore Management University 2004
• Subjects: Databases and Information Systems; Geography
• Online Access: https://ink.library.smu.edu.sg/sis_research/52; https://ink.library.smu.edu.sg/context/sis_research/article/1051/viewcontent/1_s2.0_S0167642304000644_main.pdf
• Institution: Singapore Management University

G-Portal is a Java-based digital library system for managing the metadata of geography related resources on the Web. In addition to providing a flexible repository subsystem to accommodate metadata of different formats using XML and XML Schemas, G-Portal organizes metadata into projects and layers, and supports an integrated and synchronized classification and map-based interfaces over the stored metadata. G-Portal also includes a classification subsystem that creates category structures and classifies metadata resources into categories based on user-specified classification schemas. Furthermore, G-Portal users can annotate resources and make their annotations available to others. In this paper, we describe the design and implementation of G-Portal and elaborate how Java is used to implement its features. G-Portal has been designed to be modular and some of the modules can be used as stand-alone tools. In this paper, we use UML notation to describe the detailed design of G-Portal and highlight some of the design decisions.