OntoMaven: Maven-based Ontology Development and Management of Distributed Ontology Repositories

In collaborative agile ontology development projects support for modular reuse of ontologies from large existing remote repositories, ontology project life cycle management, and transitive dependency management are important needs. The Apache Maven approach has proven its success in distributed collaborative Software Engineering by its widespread adoption. The contribution of this paper is a new design artifact called OntoMaven. OntoMaven adopts the Maven-based development methodology and adapts its concepts to knowledge engineering for Maven-based ontology development and management of ontology artifacts in distributed ontology repositories.Comment: Pre-print submission to 9th International Workshop on Semantic Web Enabled Software Engineering (SWESE2013). Berlin, Germany, December 2-5, 201

AtomSim: web-deployed atomistic dynamics simulator

AtomSim, a collection of interfaces for computational crystallography simulations, has been developed. It uses forcefield-based dynamics through physics engines such as the General Utility Lattice Program, and can be integrated into larger computational frameworks such as the Virtual Neutron Facility for processing its dynamics into scattering functions, dynamical functions etc. It is also available as a Google App Engine-hosted web-deployed interface. Examples of a quartz molecular dynamics run and a hafnium dioxide phonon calculation are presented

The Adoption of Web 2.0 in Corporations: A Process Perspective

Widely discussed in the media, Web 2.0 systems have drawn the attention of corporations, many of which now seek to adopt Web 2.0 technologies and transfer its benefits to their organizations. Organizations often struggle with the adoption of information systems, and Web 2.0 systems are certainly no exception. As an empirical foundation, we studied three organizations that successfully adopted Web 2.0 systems. We conducted a narrative analysis of the case study material to produce a process theory for Web 2.0 system adoption. Finally, we compare it to the enterprise system experience cycle of Markus and Tanis (2000). Our results indicate that the adoption of Web 2.0 systems differs from larger enterprise system adoption projects. This is rooted in the lower implementation and maintenance costs as well as lower technical complexity of Web 2.0 systems. Furthermore, its voluntary characteristics lead to an adoption process that focuses mainly on convincing users of its benefits

Student engagement with a content-based learning design

While learning is commonly conceptualised as a social, collaborative process in organisations, online courses often provide limited opportunities for communication between people. How do students engage with content-based courses? How do they find answers to their questions? How do they achieve the learning outcomes? This paper aims to answer these questions by focusing on students’ experiences in an online content-based course delivered in a large Mexican organisation. Sales supervisors (n=47) participated as students. Four main data sources were used to evaluate engagement with and learning from the course: surveys (n=40), think-aloud sessions (n=8), activity logs (n=47) and exams (n=43). Findings suggest that: (1) Students engage with a content-based course by following the guidance available and attempting to make the materials relevant to their own context. (2) Students are resourceful when trying to find support. If the materials do not provide the answers to their questions, they search for alternatives such as colleagues to talk to. (3) Content-based online learning designs may be engaging and effective. However, broadening the range of support options available to students may derive in more meaningful, contextualised and rewarding learning experiences

Graffiti Networks: A Subversive, Internet-Scale File Sharing Model

The proliferation of peer-to-peer (P2P) file sharing protocols is due to their efficient and scalable methods for data dissemination to numerous users. But many of these networks have no provisions to provide users with long term access to files after the initial interest has diminished, nor are they able to guarantee protection for users from malicious clients that wish to implicate them in incriminating activities. As such, users may turn to supplementary measures for storing and transferring data in P2P systems. We present a new file sharing paradigm, called a Graffiti Network, which allows peers to harness the potentially unlimited storage of the Internet as a third-party intermediary. Our key contributions in this paper are (1) an overview of a distributed system based on this new threat model and (2) a measurement of its viability through a one-year deployment study using a popular web-publishing platform. The results of this experiment motivate a discussion about the challenges of mitigating this type of file sharing in a hostile network environment and how web site operators can protect their resources

Harnessing innovations in libraries and information centres: issues and trends

Innovation implies the opening of new ideas, methods, and techniques applied to any organization for transformation of its operations for effective consequences. This paper focuses on the trends of innovations in libraries and information centers and addresses different core facets of library innovations. Moreover, it discusses the need of innovation in libraries, the successful factors of innovation, policy instruments, technological trends and such other related issues highlighting the significance of harvesting innovation in libraries and information centres in electronic age