Using the floor control mechanism in distributed multimedia presentation system

[[abstract]]Establishing a Web-based distributed multimedia presentation system environment is technical challenge. In this paper, we describe how to present different multimedia objects indispensably on a Web presentation system with a floor control mechanism, to be used in a distance learning environment. The distributed approach is based on an extended timed Petri net model. Using the characterization of extended timed Petri nets, we express the temporal behavior of multimedia objects. Then we introduce the concepts of user interaction. The main goal of our system is to provide a feasible method to represent a schedule and navigate different multimedia objects with user interaction. In addition, users can dynamically modify and verify different kinds of conditions during the presentation. To verify the structural mechanism, we implement an algorithm using the Petri net diagram, analyzing the model by a time schedule of multimedia objects, and we produce a synchronous set of multimedia objects with respect to the time duration. In particular, we consider the interactive facilities needed to support the distance learning requirements. We propose a floor control mechanism which provides four types of control (free access, equal control, group discussion and direct contact). These control mechanisms are sufficient for use in a distance learning environment[[notice]]補正完畢[[conferencetype]]國際[[conferencedate]]20010416~20010416[[conferencelocation]]Mesa, United State

A Distributed Multimedia Presentation System with Floor Control Mode Based on Extended Timed Petri Nets

[[abstract]]Communication over Internet is growing increasingly and will have profound implications for our economy, culture, society and education. Currently, multimedia presentation technologies among the network are most often use in many communication services. Examples of those applications include video-on demand, interactive TV and the communication tools on a distance learning system and so on. In this paper, we describe how to present different multimedia objects on a web presentation system with floor control mechanism as a result of the distance learning environment indispensably. The distributed approach is based on an extended timed Petri net model. Using characterization of extended time Petri net, we express the temporal behavior of multimedia objects; on the other hand, we introduce the concepts of user interaction. The main goal of our system is to provide a feasible method to represent a schedule and navigation of different multimedia objects with user interaction. In addition, users can dynamically modify and verify different kinds of conditions during the presentation. To verify the structural mechanism, we implement an algorithm using the Petri net diagram, analyzing the model by timeschedule of multimedia objects, and produce a synchronous set of multimedia objects with respect to time duration. Specially, we consider the interactive facilities to support the distance learning requirement. We propose a floor control mechanism, which provides four types of control (free access, equal control, group discussion, and direct contact). These control mechanisms are sufficient to the use of distance learning environment.[[sponsorship]]Ministry of Education,Republic of China; National Science Council,Republic of China; The Computer Society of the Republic of China[[notice]]補正完畢[[conferencetype]]國際[[conferencedate]]20001206~20001208[[booktype]]紙本[[iscallforpapers]]Y[[conferencelocation]]嘉義縣, 臺

Integrating Information Literacy into the Virtual University: A Course Model

published or submitted for publicatio

Managing evolution and change in web-based teaching and learning environments

The state of the art in information technology and educational technologies is evolving constantly. Courses taught are subject to constant change from organisational and subject-specific reasons. Evolution and change affect educators and developers of computer-based teaching and learning environments alike – both often being unprepared to respond effectively. A large number of educational systems are designed and developed without change and evolution in mind. We will present our approach to the design and maintenance of these systems in rapidly evolving environments and illustrate the consequences of evolution and change for these systems and for the educators and developers responsible for their implementation and deployment. We discuss various factors of change, illustrated by a Web-based virtual course, with the objective of raising an awareness of this issue of evolution and change in computer-supported teaching and learning environments. This discussion leads towards the establishment of a development and management framework for teaching and learning systems

An authoring tool for structuring and annotating on-line educational courses : a thesis presented in partial fulfilment of the requirements for the degree of Master of Science in Computer Science at Massey University

This thesis studies the design and prototype implementation of a new web-based course authoring system for the Technology Integrated Learning Environment (TILE) project. The TILE authoring system edits the course structure and allows the author to annotate the course structure with meta-data. It makes extensive use of XML technology to communicate structured data across the Internet, as well as for both local and web-side databases. The Authoring tool is designed to support development by multiple authors and has check-in and check - out, as well as version control facilities. It also provides an interface for adopting other multimedia tools such as AudioGraph. The tool has an easy-to-use graphical user interface. The technical problems that have been solved in this project include issues such as cross-platform support, drag and drop functionality using JDK l.l.8, etc. System environments, such as relational database set up, XML database set up, Java swing set up in Mac also have been discussed. The authoring system interface analysis, database analysis and function analysis have been completed for the complete the system as specified. An intermediate system, designed to a reduced specification, has been implemented as a prototype and details of this system, which can work independently of the TILE delivery system, are included. The Full TILE authoring system including InstantDB database access also has been partially implemented. The prototype application has also has been tested on the PC platform

Desktop multimedia environments to support collaborative distance learning

Desktop multimedia conferencing, when two or more persons can communicate among themselves via personal computers with the opportunity to see and hear one another as well as communicate via text messages while working with commonly available stored resources, appears to have important applications to the support of collaborative learning. In this paper we explore this potential in three ways: (a) through an analysis of particular learner needs when learning and working collaboratively with others outside of face-to-face situations; (b) through an analysis of different forms of conferencing environments, including desktop multimedia environments, relative to their effectiveness in terms of meeting learner needs for distributed collaboration; and (c) through reporting the results of a formative evaluation of a prototype desktop multimedia conferencing system developed especially for the support of collaborative learning. Via these analyses, suggestions are offered relating to the functionalities of desktop multimedia conferencing systems for the support of collaborative learning, reflecting new developments in both the technologies available for such systems and in our awareness of learner needs when working collaboratively with one other outside of face-to-face situations

Virtual learning environments in action

In this workshop Paul and Patricia demonstrated the webcast lectures developed at Glasgow Graduate School of Law as part of a learning environment where students can take control of their own learning experience. They outlined the practical benefits of such a learning environment for both professional and undergraduate legal education, and discussed the theoretical implications of this approach for the pedagogy of legal education

Co-authorship in the age of cyberculture: Open Educational Resources at the Open University of the United Kingdom

Locating Open Educational Resources (OER) as a phenomenon of cyberculture, this paper presents a reflection on the possibilities of co-authorship that are entailed in OER initiatives of different natures and settings within a large organisation. A selection of OER-related projects and activities carried out at the Open University of United Kingdom (UKOU) are examined from the perspective of a comparative framework proposed by Okada (2010). The framework identifies key features and differences between ‘Closed’ and ‘Open’ Education, that is, respectively, formal education, which takes place within the constraints of institutional Virtual Learning Environments, and informal education, which is gradually taking place more widely in cyberspace. The paper is introduced with a succinct discussion of the connection between cyberculture and the emergence of OER, followed by a presentation of the comparative framework adopted. The UKOU´s structure and methods are then presented, and various projects are discussed. The article concludes by proposing a brief commentary on the creative potential that is being unleashed at the very boundaries between formal and informal educational spaces that cyberculture is challenging