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This essay is a product of our examination work on candidate level in Interaction Design. The aim in this project was to design a digital wallet integrated into a cellular phone and make it as an electronic payment tool. In our project the goal has been to create a digital wallet not just for payment, but also develop it into a complete digital wallet, replacing visa, membership card, student cards, id card and receipt. Our ambition is to take care of current qualities of today's wallet and improve where it is possible so that can be replaceable with the digital wallet.

This thesis presents enhancements made to software designed for simulating digital mobile radio communication systems. Internally generated two-ray Rayleigh fading channel models as well as imported spatially varying complex channel impulse responses can be utilized in simulations. Implementation of receiver timing jitter and timing recovery models, as well as modifications of the channel generation (two-ray model) and conversion (imported channel), are among the enhancements that have been added. The bit error rate and outage performance of the simulator is compared with analytical results. A study of the impact of the distribution of magnitude and phase components within a channel impulse response is performed. A study utilizing both timing recovery and timing jitter models is also included. It has been found that for site specific BER and outage prediction, more descriptive channel parameters than narrowband fading statistics and statistical moments of a channel's power delay profile are needed. The studies also indicate that for simulations of channels with large delay spread timing recovery is essential. / Master of Science

A cell phone is an electronic communication device that helps break down the distance barriers between people, with added mobility advantages. For some users a cell phone is more than a communication device; it may be used as a fashion accessory, and for some the cell phone is needed to seek help in emergency situations. The cell phone market has been expanding globally over the past decade, with approximately 423 million sold globally in the year 2002 (Kiljander & Johanna, 2003). According to the CIA World Factbook (2006), the UK has more cell phones than people. The global expansion of cell phone companies may impose problems to cell phone users, since unlike the personal computer industry the cell phone industry has no standard interface, and manufacturers have the freedom to gradually improve the user interface (Kiljander & Johanna, 2003). For a user interface to be well accepted by a target population it is necessary to identify and explore the underlying design preferences. User interfaces of new technology may lead to anxiety and delayed technology acceptance, especially for users with disabilities. Even though the need for users participating in the design process has been realized, users with disabilities are not always included in the design process (Newell & Gregor, 2001). This study followed a participatory design process, to compare and contrast the cell phone interface design preferences of users from two different nations, including users with no apparent disability and users with visual disabilities. A study was conducted to identify possible relationships between national culture, disability culture and design preferences of cell phone interfaces. The theoretical framework used to guide this study was Hofstede's (1991) five dimensional cultural model. Various studies have explored cross-cultural interface design and found some relationship of these cultural dimensions with interface design components (Choi et. al., 2005; Marcus, 1999; Marcus and Gould, 2001). This study included 13 product interactive focus groups, with a total of 69 participants, 34 in India and 35 in the United States, of the age group 19-50 years. There were 4 units of analyses in this research study. This included a control group of users without any apparent disability and a disability group with a visual disability of legal blindness. The two countries, India and the United States, were selected for this comparative study because of their diverse cultural backgrounds and the rapid expansion of cell phone usage which they are witnessing. The four units of analyses differed in their cultural dimensions. There were no significant correlations found on Design preferences of cell phone features based on Choi et at. (2005)'s study on mobile services with Hofstede (1990)'s cultural dimensions. However the relationships of some these features with the underlying cultural dimensions were found when group level analysis instead of the individual level of analysis was undertaken. Differences were also found in the ratings of the hardware attributes between disability groups and differences in usability ratings were found based on nationality and disability groups. The content analysis of the focus group sessions provided an insight to the preferences on cell phone interface components and the gave a better understanding of the mobile/cell phone culture in the two countries. These results are summarized to provide guidelines for designing cross-cultural user interfaces that are nationality specific and disability specific. A pyramid model for a holistic process of designing cell phones for users with disabilities integrated the findings of this thesis and Jordon (2002)'s pleasurability framework is proposed in the conclusion section of this thesis. / Master of Science

by Lam Lai-Wah. / Thesis (M.B.A.)--Chinese University of Hong Kong, 1992. / Includes bibliographical references (leaves 77-78). / ABSTRACT --- p.ii / TABLE OF CONTENT --- p.iv / LIST OF ILLUSTRATIONS --- p.vi / LIST OF TABLES --- p.vii / ACKNOWLEDGMENT --- p.viii / Chapter I. --- INTRODUCTION --- p.1 / What is CT-2? --- p.2 / Chapter II. --- RESEARCH METHODOLOGY --- p.3 / Problem Statement --- p.3 / Research Objectives --- p.3 / Research Methodology --- p.4 / Sampling Plan --- p.5 / Chapter III. --- INDUSTRY ANALYSIS --- p.8 / CT-2 Industry --- p.10 / Paging Industry --- p.14 / Mobile Phone Industry --- p.19 / Chapter IV. --- RESEARCH FINDINGS / Analysis of Research Findings --- p.24 / Consumers' Knowledge of CT-2 --- p.24 / Corporate Image --- p.35 / Customer Loyalty --- p.36 / Consumers' Purchase Decision --- p.38 / Pricing Information --- p.42 / Characteristics of those respondents who want to buy CT-2 --- p.44 / Chapter V. --- SWOT ANALYSIS / SWOT Analysis --- p.51 / Competitor Analysis --- p.57 / Chapter VI. --- RECOMMENDATION / Marketing Strategies and implementation plan for Hutchison --- p.66 / Conclusion --- p.76 / BIBLIOGRAPHY --- p.77 / APPENDIX --- p.82

Three decades of mobile phone diffusion, thousands of mobile-phone-based health projects worldwide ("mHealth"), and tens of thousands of health applications in Apple's iTunes store, but fundamental questions about the effect of phone diffusion on people's healthcare behaviour remain unanswered. Empirical, theoretical, and methodological gaps in the study of mobile phones and health reinforce each other and lead to simplifying assumptions that mobile phones are a ubiquitous and neutral platform for interventions to improve health and healthcare. This contradicts what we know from the technology adoption literature. This thesis explores the theoretical link between mobile phone diffusion and healthcare access; develops and tests a new multidimensional indicator of mobile phone adoption; and analyses the effects of phone use on people's healthcare-seeking behaviour. My mixed methods research design - implemented in rural Rajasthan (India) and Gansu (China) - involves qualitative research with 231 participants and primary survey data from 800 persons. My research yields a qualitatively grounded framework that describes the accessibility and suitability of mobile phones in healthcare-seeking processes, the heterogeneous outcomes of phone use and non-use on healthcare access, and the uneven equity consequences in this process. Quantitative analysis based on the framework finds that mobile phone use in rural India and China increases access to healthcare, but it also invites more complex and delayed health behaviours and the over-use of scarce healthcare resources. Moreover, increasing phone-aided health action threatens to marginalise socio-economically disadvantaged groups further. I present here the first quantitative evidence on how mobile phone adoption influences healthcare-seeking behaviour. This challenges the common view that mHealth interventions operate on a neutral platform and draws attention to potential targeting, user acceptance, and sustainability problems. The framework and tools developed in this thesis can support policy considerations for health systems to evaluate and address the healthcare implications of mobile phone diffusion.

Mobile phone usage has grown rapidly and is widely used as an advertising channel. Both short message service (SMS) and multimedia messaging service (MMS) are typically used for mobile advertising. The goals of this study are to examine the determinants of attitudes toward mobile advertising in an apparel context and subsequent impact on behavior intention and to investigate the effects of modality and culture on attitudes toward apparel mobile advertising. Results indicate that entertainment, informativeness, irritation, and credibility are determinants of attitudes toward apparel mobile advertising, and attitudes can explain behavioral intention at least in part. Perceived entertainment is different between SMS and MMS apparel mobile advertising, and perceived entertainment, informativeness, irritation, and credibility are different between U.S. and Korea participants.

Uncertainties still exist about the safety of cell phone use and the level of cell phone-driven radiation. The purpose of the current inquiry was to determine the long-term health impacts of cell phone-driven radiation via the use of cell phones. In this cross-sectional study, which was based on socio-ecological theory, secondary data from the 2012 National Health Interview Survey were analyzed to assess the difference in the prevalence of thyroid cancer, mouth/tongue/lip cancer, and heart disease between exposed and non-exposed/less exposed cell phone-driven radiation groups in the United States. Logistic regression was used to address three research questions. Findings initially showed that cell phone use was associated with cancer outcome. However, there was no statistically significant relationship between individuals who were heavy users or sometimes users of cell phones and thyroid or mouth/tongue/lip cancer when compared to individuals who rarely or do not use cell phones. There was a relationship between heavy/sometimes users and heart disease when compared to individuals who rarely/do not use cell phones. Yet, when all the confounders/covariates were included in the model, there was no statistically significant difference between the groups compared. For assessment of thyroid cancer cases among individuals who received 'all/almost all calls' via the cell phones and those who received calls 'sometimes' on cell phones, age and sex were added in the model. Based on the study findings, policy-makers could further explore the implementation of comprehensive regulatory measures to address cell phone safety.

Doctor of Philosophy / Department of Psychological Sciences / Laura A. Brannon / The current research investigated strategies to reduce cell phone use while driving. Anti-distracted driving campaigns, which typically communicate risk information and target driver behavior, may produce limited effects because people tend to underestimate their risk from this behavior (e.g., Schlehofer et al., 2010). Study 1 compared the effects of messages targeting drivers to messages targeting non-drivers in order to examine the potential of discouraging people from having cell phone communication with others who are driving. Some anti-distracted driving campaigns have emphasized the potential harm to both the driver and others, but whether one approach (self-oriented or other-oriented messaging) is more persuasive than the other has not been examined empirically. Study 1 compared messages that were self-oriented, other-oriented, or neutral in terms of who could be affected by cell phone use while driving. Although cell phone use while driving generally is perceived as dangerous, people may make justifications for engaging in the behavior on at least some occasions, and these justifications may override the influence of risk knowledge on behavior. Consistent with inoculation theory (McGuire, 1961), if given the opportunity to practice refuting these justifications in a controlled setting, people will be more likely to defend themselves against justifications to engage in cell phone use while driving. Thus, Study 1 tested the prediction that participation in an inoculation task would reduce the likelihood of cell phone use while driving. Results from Study 1 suggested an advantage of targeting non-driving participants of cell phone conversations to enhance efforts for reducing on-the-road cell phone use. Study 1 also demonstrated a positive effect of inoculation, but primarily for behavior of non-driving participants of cell phone conversations. In addition to overconfidence in ability to avoid risk, habitual tendencies also may impede the influence of risk communication campaigns (Bayer & Campbell, 2012). Study 2 investigated the potential of mindfulness-based and implementation intentions techniques for helping people overcome habitual responses to their cell phone when doing so is inappropriate or inconvenient. Results indicated that pairing mindfulness-based training with risk information may be significantly more effective than risk information alone at inhibiting inappropriate cell phone use.