摘要：A promising direction in the current e-Learning strategies and activities points to contemporary ubiquitous learning through the involvement of large-scale repositories of digitized knowledge in the learning processes. This paper aims to present a possible implementation of ubiquitous learning by using digital libraries and different knowledge delivery channels (Web, digital television and mobile technologies) – idea popularized by the project “Knowledge-on-Demand for Ubiquitous Learning” (LOGOS). The paper considers the basic concepts, functional characteristics and main architectures of digital libraries oriented to ubiquitous learning applications. It also includes a set of principles that have to be met by the digital libraries so they can be utilized efficiently by the e-Learning systems. The LOGOS project goals and overall architecture are included. The paper outlines the content, architecture and technical specifications of one involved in the project digital library “Virtual Encyclopaedia of the Bulgarian Iconography”. The last part of the paper presents two scenarios. The first scenario “Access-on-demand for studying of East-Christian culture and art” describes the execution of the learning process in the LOGOS environment. The second scenario explains the courseware creation trying to capture the main functionalities of the LOGOS authoring studio.
