Exploring users’ experiences of using personal cloud storage services: a phenomenological study

Recently, cloud computing has attracted great attention for both personal and organisational usages. Despite a large number of research conducted about cloud adoption, little is known about how users practically experienced the usage and adoption of Personal Could Storage Service (PCSSs) particularly in the context of developing countries. To address this gap, this paper seeks a clear understanding of how participants have profoundly experienced and perceived PCSSs to obtain worthwhile insights towards the essence of PCSSs’ adoption as a multifaceted phenomenon. Applying the interpretive phenomenology as a research method, required data were collected by conducting semi-structured interviews with 12 experienced participants. The results reveal that users’ intentions to adopt PCSSs are highly influenced by three emerged themes, including demand-side factors, supply-side factors, and institutional factors. Concerning the demand-side factors, the paper demonstrates how user-centric aspects work in favour of PCSSs’ adoption. As to the supply-side factors, this research promotes an understanding of how the participants have perceived tangible and non-tangible features of PCSSs as a determinant of the adoption. Regarding the formal and informal institutions, remarkable roles of regulatory environments and culture are highlighted, respectively. The theoretical and practical implications of this study are discussed for both academia and practitioners.     

Energy recapture through deceleration – regenerative braking in electric vehicles from a user perspective

We report results from a 1-year field study (N = 80) on user interactions with regenerative braking in electric vehicles. Designed to recapture energy in vehicles with electric powertrains, regenerative braking has an important influence on both the task of driving and energy consumption. Results from user assessments and data from onboard data loggers indicate that most drivers quickly learned to interact with the system, which was triggered via accelerator. Further, conventional braking manoeuvres decreased significantly as the majority of deceleration episodes could only be executed through regenerative braking. Still, some drivers reported difficulties when adapting to the system. These difficulties could be addressed by offering different levels of regeneration so that the intensity of the deceleration could be individually modified. In general, the system is trusted and regarded as a valuable tool for prolonging range.

Practitioner Summary: Regenerative braking in electric vehicles has direct implications for the driving task. We found that drivers quickly learn to use and accept a system, which is triggered via accelerator. For those reporting difficulties in the interaction, it appears reasonable to integrate options to customise or switch off the system.     

Behavioural issues in environmental modelling – The missing perspective

The paper aims to demonstrate the importance of behavioural issues in environmental modelling. These issues can relate both to the modeler and to the modelling process including the social interaction in the modelling team. The origins of behavioural effects can be in the cognitive and motivational biases or in the social systems created as well as in the visual and verbal communication strategies used. The possible occurrence of these phenomena in the context of environmental modelling is discussed and suggestions for research topics are provided.     

A novel optimized approach for resource reservation in cloud computing using producer–consumer theory of microeconomics

The Journal of Supercomputing - Designing economic pricing mechanisms have recently attracted a great deal of attention in the context of cloud computing. We believe that microeconomics theory is a...     

Exploring the costs of technical debt management – a case study

Technical debt is a metaphor for delayed software maintenance tasks. Incurring technical debt may bring short-term benefits to a project, but such benefits are often achieved at the cost of extra work in future, analogous to paying interest on the debt. Currently technical debt is managed implicitly, if at all. However, on large systems, it is too easy to lose track of delayed tasks or to misunderstand their impact. Therefore, we have proposed a new approach to managing technical debt, which we believe to be helpful for software managers to make informed decisions. In this study we explored the costs of the new approach by tracking the technical debt management activities in an on-going software project. The results from the study provided insights into the impact of technical debt management on software projects. In particular, we found that there is a significant start-up cost when beginning to track and monitor technical debt, but the cost of ongoing management soon declines to very reasonable levels.     

Does online interactivity matter? Exploring the role of interactivity strategies in consumer decision making

Given that the Internet does not afford an opportunity to inspect products before purchase, some customers hesitate to shop online. Online interactivity can supplement online decision-making with added product information. Based on the theories of impression management and deception, this study focuses on sellers’ online interactivity strategies (SOIS) and aims to explore the role of SOIS played in online purchase decision-making process. According to the stimulus–organism–response (S–O–R) paradigm, this study aims to understand how each component of SOIS affects transaction intention through consumer perceptions (perceived deception and perceived diagnosticity) and how this affect is moderated by product types (search goods and experience goods) in online marketplaces. Data collected from 475 respondents support most of our hypotheses. Product type positively moderates only the link between image creation and perceived deception. Implications for theory and practice are also discussed.     

Exploring the online bidder’s repurchase intention: a cost and benefit perspective

The success of online auctions is founded on bidders enjoying shopping benefits and on creating bidders’ loyalty. This study investigates the importance of bidders’ repurchase intention along with the corresponding cost and benefit aspects. Therefore, this study integrates transaction cost economics and expectancy confirmation theory to understand the determinants of bidders’ repurchase intention in online auctions. We collected data from a survey questionnaire, and a total of 594 valid questionnaires were analyzed. Partial least squares structural equation modeling was used to assess the relationships of the research model. The findings show that satisfaction has a significant influence on bidders’ repurchase intention, while transaction cost is negatively associated with repurchase intention. Bidders’ satisfaction is determined by confirmation and by the e-service quality of both auctioneers and sellers. Moreover, an auctioneer’s asset specificity and product uncertainty are positively associated with the bidder’s perceived transaction cost. The interaction frequency between bidder and seller is negatively associated with the bidder’s transaction costs. The research results provide a novel approach to understanding bidders’ benefit and cost dimensions in online auction marketplaces. Our findings could guide online auctioneers and sellers in enhancing their offerings.     

Exploring students’ behaviors in a competition-driven educational game

Educational mini-games, one of the applications of game-based learning, have been widely used to benefit student learning. However, few studies have examined the influence of competition-driven educational games on students’ behaviors, which might offer insights into how to develop well-designed educational games. Thus, this study discusses a Pet-Master system, as an example of a competition-driven educational game, in an investigation of students’ behaviors through both event-based and time-based analysis. Two empirical studies were conducted using the two types of analysis. The results of the event-based analysis indicated that the behaviors can be categorized into two parts: competition-driven and learning cycles. Evidence from the time-based analysis showed that the two behavior cycles appeared in an alternating way with a lower transition frequency. Based on the results we develop a design framework for competition-driven educational games, which illustrates the relationship among the social, learning, and gameplay dimensions. The framework and its application might serve to optimize learning outcomes and influence the way games are designed in order to maximize educational benefits in the future.     

An empirical comparison of consumer usability preferences in online shopping using stationary and mobile devices: results from a college student population

To determine the differences in user preferences between electronic and mobile commerce in consumer shopping, a 25-item survey concerning usability aspects of the two media was implemented on one hundred and eighteen college e-shoppers with experience in mobile devices. The Mobile Commerce Comparison Survey (MCCS) had four validated comparison factors: human factors-related, interface features, product-, and service-related factor. The comparison concludes that usability issues are perceived to be behind in m-commerce, and that m-commerce should be a shopping medium complementary to classic e-commerce rather than a direct alternative to it. Future studies may include empirical usability experiments for m-commerce tasks.     

A computational resources scheduling algorithm in edge cloud computing: from the energy efficiency of users’ perspective

The Journal of Supercomputing - Nowadays, research in the field of task offloading not only pays attention to the computing performance of computing nodes, but also pays attention to the impact of...     

Technical, legal and ethical dilemmas: distinguishing risks arising from malware and cyber-attack tools in the ‘cloud’—a forensic computing perspective

While hype around the benefits of ‘cloud computing’increase, challenges in maintaining data security and data privacy have also been recognised as significant vulnerabilities (Ristenpart et al. in Proceedings of the 14th ACM conference on computer and communications security, pp 103–115, 2009; Pearson in CLOUD’09, pp 44–52, 2009; Vouk in J Comput Inf Technol 4:235–246, 2008). These vulnerabilities generate a range of questions relating to the capacity of organisations relying on cloud solutions to effectively manage risk. This has become particularly the case as the threats faced by organisations have moved increasingly away from indiscriminate malware to more targeted cyber-attack tools. From forensic computing perspective it has also been recognised that ‘cloud solutions’ pose additional challenges for forensic computing specialists including discoverability and chain of evidence (Ruan et al. in Adv Digital Forensics VII:35–46, 2011; Reilly et al. in Int J Multimedia Image Process 1:26–34, 2011). However, to date there has been little consideration of how the differences between indiscriminate malware and targeted cyber-attack tools further problematize the capacity of organisations to manage risk. This paper also considers these risks and differentiates between technical, legal and ethical dilemmas posed. The paper also highlights the need for organisations to be aware of these issues when deciding to move to cloud solutions.     

Smart sustainable cities – Exploring ICT solutions for reduced energy use in cities

This article explores the opportunities of using ICT as an enabling technology to reduce energy use in cities. An analytical framework is developed in which a typology of ICT opportunities is combined with a typology of household functions, i.e. all the activities that require energy. The energy used for household functions is calculated using a consumption-based lifecycle perspective. The analytical framework is intended to be of use to researchers, city and regional authorities and ICT companies interested in acquiring a better understanding of how ICT investments could contribute to reduce energy use in cities.     

Exploring the social competence of students with autism spectrum conditions in a collaborative virtual learning environment – The pilot study

Social reciprocity deficits are a core feature of the autism spectrum conditions (ASCs). Many individual with ASCs have difficulty with social interaction due to a frequent lack of social competence. This study focuses on using a virtual learning environment to help the deficiencies of social competence for people with ASCs, and to increase their social interaction. Specifically, it primitively explores social competence in collaborative virtual learning environment (CVLE) systems, and behavioral performance in social and cognitive interactions. Thus, this CVLE-social interaction system involves a 3D expressive avatar, an animated social situation, and verbal as well as text-communication. A preliminary empirical study involved CVLE-social interaction systems. Three participants who had been diagnosed with ASCs were conducted using a multiple baseline research for evidence of improved social competence through usage of the system. The experimental study consisted of 17 days; and the results showed that using the CVLE-social interaction system had significant positive effects on participants’ performance, both within the CVLE-social interaction system and in terms of reciprocal social interaction learning.     

Higher education in a state of crisis: a perspective from a Students’ Quality Circle

This article introduces a Students’ Quality Circle in higher education, in the context of current debates. With increasing numbers of students entering the university and constrained financial resources in the sector, new approaches are needed, with new partnership between lecturers and students. The first Students’ Quality Circle at Kingston is located in a wider international context.     

Exploring cyberbullying and face-to-face bullying in working life – Prevalence,targets and expressions

While cyberbullying among children and adolescents is a well-investigated phenomenon, few studies have centred on adults' exposure to cyberbullying in working life. Drawing on a large sample of 3371 respondents, this study investigates the prevalence of cyberbullying and face-to-face bullying in Swedish working life and its relation to gender and organisational position. Using a cyberbullying behaviour questionnaire (CBQ), the result shows that 9.7% of the respondents can be labelled as cyberbullied in accordance with Leymann's cut-off criterion. Fewer respondents, .7%, labelled themselves as cyberbullied and 3.5% labelled themselves as bullied face-to-face. While no significant relationships with gender or organisational position was found for individuals exposed to face-to-face bullying, this study showed that men to a higher degree than women were exposed to cyberbullying. Moreover, individuals with a supervisory position were more exposed to cyberbullying than individuals with no managerial responsibility.