Browsing by Author "Giaglis, G. M."
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Item Metadata only Adoption Behavior Differences for Mobile Data Services: M-Internet vs. M-Portals(Inderscience, 2014) Kourouthanassis, P. E.; Giaglis, G. M.; Karaiskos, D.; Zamani, Efpraxia D.This study attempts to investigate the potential differences among individual adoption patterns between mobile portal and mobile internet services usage. A theoretical model that reflects six unique predominant factors of IS usage is developed and is empirically tested using data collected from mobile data services (MDSs) users (116 mobile internet users and 178 mobile portal users). The results indicate that there are differences among the adoption behaviour of mobile portal users and mobile internet users. Specifically, mobile internet use is likely to be driven by utilitarian expectations and the perceived usefulness of accessing the web through this alternative medium. Conversely, mobile portals use is likely to be dependent on the users’ personal innovativeness and is not significantly affected by the utility of the mobile service itself. Moreover, we find indirect effects of performance expectancy, facilitating conditions and social influence to the behavioural intention to use mobile internet.Item Metadata only Consumer Responses to SMS Advertising: Antecedents and Consequences(Taylor and Francis, 2013) Drossos, D. A.; Giaglis, G. M.; Vlachos, P.; Zamani, Efpraxia D.; Lekakos, G.Mobile phone advertisements, in the form of text messages (SMS, or short message service), have been recognized as an important form of product promotion. The purpose of this paper is to investigate factors that influence the effectiveness of SMS advertising by using a hierarchy of effects approach. We employ a simulated experiment with 736 respondents to examine how consumers react to SMS advertisements and identify factors that influence their attitude toward the ad, their attitude toward the brand, and their purchase intention. Perceived ad credibility, attitude toward mobile advertising, message appeal, argument quality, incentive, product involvement, and interactivity were found to be antecedents of the attitude toward the ad. Moreover, there is a clear link between attitude and behavioral intention. The study is among the first to provide an experimental based assessment and a unified model linking consumer attitudes toward mobile text ads with brand attitudes and purchase intentions.Item Metadata only “Dad Bought Another Toy”: Meaning Making and Emotions with Tablets(11th International Conference on Mobile Business (ICMB 2012), 2012) Zamani, Efpraxia D.; Giaglis, G. M.; Pouloudi, N.The paper examines the interplay between meaning and emotion during the interaction with tablets. Following the interpretive case study approach, we examine users’ meaning making as the context of use changes from the business context to the personal environment, trailing users’ interpretation of the tablet and their overall experience, in order to detect changes in their feeling states and understand their emotional experience with the IT artifact. Having examined mainly on-the-go professionals, our findings illustrate that the tablet is considered as a compelling device, being interpreted simultaneously as an extension of the office environment, while being mobile or at home, as a multimedia and content consumption station and as communal device, awarding or strengthening the social character of group activities. In addition, the findings suggest that users develop an attachment to the device, by either personalizing it and approaching it as a companion, or by attributing to it a symbolic significance, by recognizing a value in its expressive characteristics and assessing as a ‘possession to own’. Our findings demonstrate that, as the tablet moves from the business to the home environment, gradually losing its utilitarian purpose, changes in feeling states become more significant and the emotional experience intensifies.Item Metadata only Enhancing the Tourism Experience through Mobile Augmented Reality: Challenges and Prospects(2nd Advances in Hospitality and Tourism Marketing & Management Conference (AHTMM 2012), 2012) Kounavis, C. D.; Kasimati, A. E.; Zamani, Efpraxia D.; Giaglis, G. M.The paper discusses the use of Augmented Reality (AR) applications for the needs of tourism. It describes the technology’s evolution from pilot applications into commercial mobile applications. We address the technical aspects of mobile AR applications development, emphasizing on the technologies that render the delivery of augmented reality content possible and experientially superior. We examine the state of the art, providing an analysis concerning the development and the objectives of each application. Acknowledging the various technological limitations hindering AR’s substantial end-user adoption, the paper proposes a model for developing AR mobile applications for the field of tourism, aiming to release AR’s full potential within the field.Item Metadata only Explaining the Adoption of Mobile Internet Applications(9th International Conference on Mobile Business (ICMB 2010), 2010) Kourouthanassis, P.; Georgiadis, C. K.; Zamani, Efpraxia D.; Giaglis, G. M.This study aims at investigating the adoption behavior of mobile Internet users in Greece. An integrated model comprising of seven factors was developed and tested through the execution of a national telephone survey (N=139). The results of the survey suggest that the emotional state of individuals while using mobile Internet, social influence from their peers, and their personal innovativeness comprise the predictive factors of adoption behavior. Moreover, the study reveals that performance expectancy is a strong predictor of mobile Internet adoption mediated through individuals’ emotional state. The paper concludes with a critical discussion of the results comparing the study findings with past mobile data services studies.Item Metadata only Exploring the Adoption of Ubiquitous Information Systems within the Museum Context(6th Mediterranean Conference on Information Systems (MCIS 2011), 2011) Zamani, Efpraxia D.; Karaiskos, D.; Kourouthanassis, P. E.; Giaglis, G. M.Wireless and mobile technologies are gradually enabling the provision of innovative information services within almost all environments. This study explores the adoption of ubiquitous museum information systems that can significantly enhance and enrich the museum visit. We draw on traditional IS adoption theories and theories from Museum Studies to develop our theoretical model which is empirically tested through a survey addressed to museum visitors (n=118). Model hypotheses are tested through Partial Least Squares modelling. The results show that Performance Expectancy and Personal Innovativeness still represent the core predictors toward the adoption of museum information systems. However, we also report on the predictive strength of two context-related factors, Invisibility and Interaction, which appear to play a particular role toward the formulation of favourable user perceptions. The paper concludes with implications on the design of museum information systems and specific suggestions for future research.Item Metadata only From Bitcoin to Decentralized Autonomous Corporations: Extending the Application Scope of Decentralized Peer-to-Peer Networks and Blockchains(18th International Conference on Enterprise Information Systems (ICEIS 2015), 2015) Zamani, Efpraxia D.; Giaglis, G. M.; Kypriotaki, K. N.Inspired by the new technological advancements and the groundbreaking technology at the foundation of cryptocurrencies, organizational structures are expected to evolve and new corporate structures to emerge, based on full decentralization. We posit that the blockchain, i.e., the technology, system and protocol behind and beyond the most popular digital crypto-currencies, will introduce decentralization in many manifestations of our everyday life, especially in cases where an independent trusted third party is needed to ensure and verify operations and transactions. This paper builds upon the blockchain technology and discusses how it could enable fully decentralized forms of business structures to emerge; decentralized autonomous corporations (DACs) are business entities totally based on code; running on the cloud, providing certain services and creating value for their customers. Thus, we argue that DACs could prove a means of decentralizing and automating decision making in organizations.Item Metadata only Gravitating to "the new shiny thing": Meaning, emotions, and tablets(IEEE, 2013-06-05) Zamani, Efpraxia D.; Giaglis, G. M.; Pouloudi, N.Technology continuously revolutionizes the way people interact with information technology (IT). In this article we argue that, while extant literature has certainly provided rich insights into meaning making with IT artifacts, the tablet's proliferation calls for reassigning the significance these may hold for users. Approaching user experience as subjective, we seek to explore the relationship individuals develop with the tablet in their daily lives. We follow the case study research method, and build upon a paradigmatic case, that of the iPad, because it is considered as the exemplar in its class; even though tablets have existed for years, it is only with the launching of the iPad, that they became popular among the mass consumer market.Item Metadata only An Innovative Conference Management Mobile Application (CoMMA)(10th International Conference on Mobile Business (ICMB 2011), 2011) Kounavis, C. D.; Zamani, Efpraxia D.; Giaglis, G. M.Managing a conference can be a frustrating process for both organizers and attendees. However, technological advances have made possible the development of mobile applications that can effectively support both parties; mobile applications are easily accessible through a smartphone and the user can effortlessly upload or retrieve any pertinent information. In this paper we present CoMMA, an innovative mobile application for conference management, which aims to support organisers and attendees. The paper discusses the functionality of the application by presenting common issues that may rise during a given event and the support CoMMA can provide toward tackling them. Next, it presents the front and back-end functionality, along with details on its first realtime implementation. The authors conclude by discussing possible contributions with regards to raising attendees’ satisfaction and presenting future steps toward enriching the application’s set of features and further improving its functionality.Item Metadata only Investigating the Adoption and Use of Smartphones in the UK: A Silver-Surfers Perspective(22nd European Conference on Information Systems (ECIS 2014), 2014) Pheeraphuttharangkoon, S.; Choudrie, J.; Zamani, Efpraxia D.; Giaglis, G. M.In this decade, smartphones are innovations that provide immense benefits and convenience to users in society. When considering users, Silver-surfers or older adults (50+) are one of the largest demographic groups that are overlooked by both the industry and academia. Currently, there is minimal knowledge of the reasons that older adults adopt and use smartphones. Bearing this in mind, this completed research study aims to investigate the adoption and usage behaviors of silver-surfers. For this purpose, the conceptual framework applied to this research draws factors from the theories of Unified theory of Acceptance and Use of Technology (UTAUT), the Diffusion of Innovations theory (DoI) and TAM3. From the online survey of 204 completed replies it was found that observability, compatibility, social influence, facilitating conditions, effort expectancy and enjoyment are important to the adoption and use of smartphones within silver-surfers. The contributions of this research are an identification and understanding of the factors that encourage or inhibit smartphones use within the older adult population. Second, this research can inform the design of computing devices and applications used for silver-surfers. Finally, this research can enlighten policy makers when forming decisions that encourage adoption and use of smartphones within silver surfers.Item Metadata only The mediating role of Emotional State toward Pervasive IS adoption(9th International Conference on Mobile Business (ICMB 2010), 2010) Zamani, Efpraxia D.; Kourouthanassis, P. E.; Giaglis, G. M.Research in the field of adoption theories has been predominantly concerned with the work environment and cognitive factors affecting Behavioural Intention. However, the emerging class of Pervasive Information Systems develops within a much different context. The present study proposes a new approach for the examination of the individual user’s acceptance of technology, specifically for the class of Pervasive Information Systems. In particular, it examines the mediating role of Emotional State toward the individual acceptance of Pervasive Information Systems. The proposed research model was tested with data collected through an exploratory experiment (n=33) using a mobile Augmented Reality application. The results confirm the appropriateness of the developed instrument, the research model and that Performance Expectancy is the strongest predictor of user adoption, mediated through the user’s Emotional State as formed while interacting with the system.Item Metadata only Mobile Application Supporting Conference Attendees and Organizers(15th Panhellenic Conference on Informatics (PCI 2011), 2011) Kounavis, C. D.; Zamani, Efpraxia D.; Giaglis, G. M.The proliferation of technological advances have made possible the development of mobile applications that can effectively support organizers and attendees; mobile applications are easily accessible through a smartphone and the user can effortlessly upload or retrieve any pertinent information. This paper presents CoMMA, a web-based mobile application for managing conferences. It discusses the application’s functionality by presenting common issues that may rise during a given event and the support CoMMA can provide toward tackling them. In addition, the paper discusses the technologies and the developmental techniques that we used. Next, it presents the development phase, the front- and back-end functionality and details on its first real-time implementation. It concludes by discussing possible improvements in order to enrich the application’s set of features, its functionality and architecture as well as some of its limitations.Item Metadata only Public Relations Crisis and Social Media: An Investigation into Extant and Prospective Consumers’ Perceptions through the Lens of Attribution Theory’(SciELO, 2015) Zamani, Efpraxia D.; Kasimati, A. E.; Giaglis, G. M.Online social media has shifted the balance of power from businesses to consumers, with consumers now being able to share information almost unrestrictedly in real-time. As a result, an effort to suppress what may be considered as harmful information can easily backfire, causing the information to instantly spread through user ties. However, what is considered important in such occasions is the way extant and prospective customers may interpret such crises. In this paper, we discuss the case of a Greek Apple authorized service provider and the manner in which it responded to a customer’s complaint in a blog post. The company, instead of using social media to reach out to its customers, chose to move legally against the disgruntled customer, aiming to suppress the relevant blog post, which quickly resulted to the company’s viral defamation. Building upon attribution theory and employing a content analysis of user postings in social media, our study explores stakeholders’ perceptions regarding the company’s reaction and response strategy, seeking to investigate attributions of cause and responsibility. Our results show that, in the initial stages of a crisis, hostile behaviour or refraining from comments altogether, can lead to negative outcomes in relation to a company’s reputation.Item Metadata only Response to a PR Crisis in the age of Social Media: a Case Study Approach(International Conference on Contemporary Marketing Issues (ICCMI2012), 2012) Zamani, Efpraxia D.; Kasimati, A. E.; Giaglis, G. M.As online social networks proliferate, the landscape of marketing is changing. While firms recognize the importance to actively manage their online presence for marketing purposes, web 2.0 users are the content generators and in control over information sharing and their communications. Web 2.0 applications have shifted the power balance from businesses to consumers, the latter sharing information in real-time with each other. As a result, an attempt to suppress what may be considered as harmful information can in fact backfire and have the contrary consequences with the information spreading following an epidemic process through user ties all over the blogosphere. In this paper we discuss the case of an Apple authorized reseller and service provider in Greece, and the manner with which the company responded to a customer’s blog post in which he described his experience with the company. What could have been resolved with an out-of-court settlement, inevitably implicated concepts such as freedom of speech and consumer rights. The company, instead of using social media to reach out to its customers, chose instead to move against the disgruntled customer, which quickly resulted to the company’s viral defamation across the global blogosphere.Item Metadata only Response to a Public Relations Crisis in the age of Social Media(The Case Centre, 2014) Zamani, Efpraxia D.; Kasimati, A. E.; Giaglis, G. M.This case study discusses a Greek Apple authorised service provider and reseller and the manner in which it responded to a customer’s complaint in a blog post. The company, instead of using social media to reach out to its customers, chose to pursue legal charges against the disgruntled customer, aiming to suppress the relevant blog post, which quickly resulted in the company’s viral defamation. Various lessons can be drawn from the case: Insights drawn from stakeholders’ comments illustrate that companies cannot afford to refrain from web 2.0, especially in the initial stages of a crisis, or ignore its principles, while developing a direct dialogue with on-line users can help a company be proactive in the case of a public relations crisis and avoid most negative outcomes in relation to a company’s reputation.Item Metadata only A Sensemaking Approach to Tablet Users’ Accommodating Practices(International Conference on Information Systems (ICIS), 2013) Zamani, Efpraxia D.; Giaglis, G. M.; Pouloudi, NancyAs mobile devices permeate daily life, several studies investigate how users react when technology falls short of their expectations. In this paper, we deploy a data/frame model to examine sensemaking processes through which users approach their interaction with the tablet under conditions of discomfort. We show that users eventually handle such problematic episodes by adopting one of three identified practices: they choose to defer tasks until the situation changes or abandon the platform altogether; they develop workarounds at different levels of mastery; or they proceed by reframing their expectations for the mobile platform. The paper’s contribution is twofold. Investigating user narratives on interaction, our study explicates the sensemaking processes through which users adopt one of the three practices. On a practical level, its results can inform IT artefact and application design by offering insight on how users proceed in bridging the gap between their expectations and the situation at hand.Item Metadata only Tactile Experiences: User Interpretations and Meaning with Touch-Focused IT Artifacts(Hawaii International Conference on System Sciences (HICSS 47), 2013) Zamani, Efpraxia D.; Giaglis, G. M.; Pouloudi, N.Although touch computing has become an everyday occurrence, there has been little research into the subjective meanings people may assign to touch-focused IT artifacts. Following an interpretive case study with tablets, we examine blogposts, aiming to document user interpretations of the tablet, and to investigate the role of touch and that of cognitive ergonomics towards the formulation of subjective meanings. Our findings illustrate that users focus their evaluations on the limited use of physical controls, the direct, without physical barriers, interaction and the new interaction modalities. These evaluations contribute to interpreting the tablet as a 'significant other', as well as having extraordinary abilities, or holding symbolic significance. Since designing for positive experiences entails grasping the relationship users develop with their IT artifacts, our study's results can enrich the literature of user experience, and inform design by offering insight into user interpretations and their tactile experiences.Item Metadata only The Wireless Readiness Innovation Index: Enhancing the Effectiveness of the Public Sector in New Service Introduction(12th International Conference on Mobile Business (ICMB 2013), 2013) Kasimati, A. E.; Kourouthanassis, P.; Giaglis, G. M.; Zamani, Efpraxia D.National and regional public authorities need to align their planned introduction of mobile/wireless innovation with the maturity levels of both their workforce (who will manage and maintain the new applications) and their citizens (who will use them). We draw on the experience of working with local authorities in three Mediterranean countries (Greece, Italy and Spain) to develop a method towards the effective introduction and adoption of innovative mobile services by public organizations. Specifically, we discuss the development and pilot implementation of a) the "Wireless Readiness Innovation Index", a tool that aims at measuring the local authority’s and end users’ readiness towards providing and using innovative wireless services and b) the "Wireless Innovation Operational Toolkit", a tool that aims at matching users’ and local authority’s readiness levels with candidate services so as to maximize the likelihood of successful introduction and sustained use.Item Open Access With a little help from the miners: Distributed Ledger Technology and Market Disintermediation(2018-04-09) Zamani, Efpraxia D.; Giaglis, G. M.Purpose: The purpose of this paper is to argue for the role of the blockchain, i.e., distributed ledger technology, in building innovative business models, including machine money, autonomous economic agents and decentralised organisations. Design/methodology/approach: The paper is conceptual/argumentative. As such, it draws on research on (e-) commerce, theories of markets, disruptive innovation and extant studies and conceptual work at the intersection of cryptocurrencies, M2M commerce and the internet of things. Findings: We highlight three application areas for blockchains, whereby they can function as applications, can help develop autonomous economic agents, and can lead the development of decentralised autonomous corporations. With regards to the question of market dis-intermediation, we suggest that, rather than complete disintermediation, the most probable scenario is that of new types of intermediaries finding previously unthinkable roles to play in mediating blockchain-based economic transactions. With regards to the inhibitors that slow down the technology’s adoption and, therefore, the development of new business applications, we posit that these relate mainly to the inherent risk of the technology, infrastructure requirements, scepticism of early decision makers and the lack of required new skills and competencies. Originality/value: We examine how new forms of digital money and technologies embedding trust in decentralized networks will alter markets and commerce, at a time when many regulatory issues remain unresolved; in doing so, we focus on how blockchain-enabled technologies can be used to enable and further develop decentralized trusted peer-to-peer transaction ledger systems and applications and lead to sustainable business models.