Graph data, especially large graph data, come up in many domains, such as social networks, the map of science, biological data, and even knitting! This presents a problem when we consider visualizing these structures. Layouts must be chosen carefully so that the structure of the graph is visible. Some graphs are large enough and connected enough…

Information Communication Technology (ICT) is ubiquitous in the 21st century, hence both educators and learners need to integrate relevant ICT resources in their teaching and learning practices, to meet stakeholder's expectations and keep abreast with the race of technological advancement. The current research focuses on the analysis of ICT…

The extensification activities of Education Informatics Network use in Turkey are in progress. The use and preferability of this education portal by teachers and students depend on various factors. One of these factors is usability. The purpose of this research is to make the usability analysis of the Education Informatics Network from the…

Content-centric networking (CCN) has emerged as a dominant paradigm for future Internet architecture design due to its efficient support for content dissemination, which currently dominates Internet use. This dissertation shows how economic and social welfare analysis can be used to inform the design of a CCN architecture that provides network…

The importance of information security has made many organizations to invest and utilize effective information security controls within the information systems (IS) architecture. An organization's strategic decisions to secure enterprise-wide services often associated with the overall competitive advantages that are attained through the process of…

Since the introduction of Tapestry in 1990, research on recommender systems has traditionally focused on the development of algorithms whose goal is to increase the accuracy of predicting users' taste based on historical data. In the last decade, this research has diversified, with "human factors" being one area that has received…

New products continue to launch quickly but many of them are converged products. The "new product" is not a completely new thing to consumers and the basic features stay the same. As a result, the added functions or fancy design can't explain why consumers adopt the new media. Past studies have examined perceptions of innovations or user…

One of the toughest challenges in an academic library systems office is how to manage and present the extensive selection of electronic resources from a variety of vendors. At York College of Pennsylvania, the authors participated in an admissions-driven web revision cycle and used a campus-provided CMS for 8 years. During this time, they tried…

Zoomable user interfaces (ZUIs) have received a significant amount of attention in the 18 years since they were introduced. They have enjoyed some success, and elements of ZUIs are widely used in computers today, although the grand vision of a zoomable desktop has not materialised. This paper describes the premise and promise of ZUIs along with…

In spite of the goodwill and best efforts of software engineers and usability professionals, systems continue to be built and released with glaring usability flaws that are costly and difficult to fix after the system has been built. Although user interface (UI) designers, be they usability or design experts, communicate usability requirements to…

As the use of Information Technology (IT) applications has become more widespread, focus has turned toward applying IT to the learning domain, with policy initiatives aimed at integrating IT with teaching. E-Portfolios have assumed growing importance in higher education as institutions seek new teaching-learning-assessment tools to increase…

This paper presents the usability evaluation of a digital systems laboratory class offered to distance-learning students. It details the way in which students can participate remotely in such a laboratory, the methodology employed in the usability assessment of the laboratory infrastructure (hardware and software), and also outlines the main…

Current literature on libraries is abundant with articles about the uses and the potential of new interactive communication technology, including Web 2.0 tools. Recently, the advent and use of virtual worlds have received top billing in these works. Many library institutions are exploring these virtual environments; this exploration and the…

Advances in grid technology have enabled some organizations to harness enormous computational power on demand. However, the prediction of widespread adoption of the grid technology has not materialized despite the obvious grid advantages. This situation has encouraged intense efforts to close the research gap in the grid adoption process. In this…

The cloud has become a widely used term in academia and the industry. Education has not remained unaware of this trend, and several educational solutions based on cloud technologies are already in place, especially for software as a service cloud. However, an evaluation of the educational potential of infrastructure and platform clouds has not…