464,307 research outputs found

    The Utilization of Mobile Technology for Crime Scene Investigation in the San Francisco Bay Area

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    The research presented aims to explore factors affecting the decision to adopt a mobile crime scene investigation application in police departments throughout the San Francisco Bay Area. To accomplish this goal, the mobile technology acceptance model was used in designing a survey for data collection. This model utilizes four categories to interpret the factors that influence a police officer’s decision to accept or reject mobile technologies: performance, security and reliability, management style, and cognitive acceptance. Nine police departments were sampled through a series of in-person and over-the-phone interviews to obtain data regarding factors affecting the adoption of a mobile crime scene investigation application. Results suggest that if a mobile crime scene investigation application were made available, a vast majority of the police departments in the Bay Area would implement this new technology

    Community-based management of hypertension in Nepal (COBMIN)

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    Master of ScienceDepartment of Computing and Information SciencesDaniel A. AndresenIn COBMIN project, we explore two popular software architectural pattern to implement WHO (World Health Organization) STEPS Instrument for Non-Communication Diseases Risk Factor Surveillance for Nepal. COBMIN web application implements Model-View-Controller(MVC) pattern, which divides the application into three interconnected parts - model, view, and controller. Similarly, COBMIN mobile application utilizes one of the most popular Model-View-ViewModel (MVVM) software architectural pattern which isolates the development of graphical user interface from the business logic and data models. We implement above-mentioned pattern using new .Net Core technologies and a cross-platform mobile development API Xamarin.Forms. The COBMIN project comprises of a web application, a web API, and a mobile application to facilitate community-based management of hypertension in Nepal. The primary purpose of the web application is to manage demographic, behavioral, and physical information of the members of the community who are part of the study group. The mobile application is used to expedite the process of data acquisition from the members. The Web API defines request-response message system for mobile client application employing the central data storage

    A Framework for Model-Driven Development of Mobile Applications with Context Support

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    Model-driven development (MDD) of software systems has been a serious trend in different application domains over the last 15 years. While technologies, platforms, and architectural paradigms have changed several times since model-driven development processes were first introduced, their applicability and usefulness are discussed every time a new technological trend appears. Looking at the rapid market penetration of smartphones, software engineers are curious about how model-driven development technologies can deal with this novel and emergent domain of software engineering (SE). Indeed, software engineering of mobile applications provides many challenges that model-driven development can address. Model-driven development uses a platform independent model as a crucial artifact. Such a model usually follows a domain-specific modeling language and separates the business concerns from the technical concerns. These platform-independent models can be reused for generating native program code for several mobile software platforms. However, a major drawback of model-driven development is that infrastructure developers must provide a fairly sophisticated model-driven development infrastructure before mobile application developers can create mobile applications in a model-driven way. Hence, the first part of this thesis deals with designing a model-driven development infrastructure for mobile applications. We will follow a rigorous design process comprising a domain analysis, the design of a domain-specific modeling language, and the development of the corresponding model editors. To ensure that the code generators produce high-quality application code and the resulting mobile applications follow a proper architectural design, we will analyze several representative reference applications beforehand. Thus, the reader will get an insight into both the features of mobile applications and the steps that are required to design and implement a model-driven development infrastructure. As a result of the domain analysis and the analysis of the reference applications, we identified context-awareness as a further important feature of mobile applications. Current software engineering tools do not sufficiently support designing and implementing of context-aware mobile applications. Although these tools (e.g., middleware approaches) support the definition and the collection of contextual information, the adaptation of the mobile application must often be implemented by hand at a low abstraction level by the mobile application developers. Thus, the second part of this thesis demonstrates how context-aware mobile applications can be designed more easily by using a model-driven development approach. Techniques such as model transformation and model interpretation are used to adapt mobile applications to different contexts at design time or runtime. Moreover, model analysis and model-based simulation help mobile application developers to evaluate a designed mobile application (i.e., app model) prior to its generation and deployment with respected to certain contexts. We demonstrate the usefulness and applicability of the model-driven development infrastructure we developed by seven case examples. These showcases demonstrate the designing of mobile applications in different domains. We demonstrate the scalability of our model-driven development infrastructure with several performance tests, focusing on the generation time of mobile applications, as well as their runtime performance. Moreover, the usability was successfully evaluated during several hands-on training sessions by real mobile application developers with different skill levels

    Service-oriented Context-aware Framework

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    Location- and context-aware services are emerging technologies in mobile and desktop environments, however, most of them are difficult to use and do not seem to be beneficial enough. Our research focuses on designing and creating a service-oriented framework that helps location- and context-aware, client-service type application development and use. Location information is combined with other contexts such as the users' history, preferences and disabilities. The framework also handles the spatial model of the environment (e.g. map of a room or a building) as a context. The framework is built on a semantic backend where the ontologies are represented using the OWL description language. The use of ontologies enables the framework to run inference tasks and to easily adapt to new context types. The framework contains a compatibility layer for positioning devices, which hides the technical differences of positioning technologies and enables the combination of location data of various sources

    Understanding the Diffusion of a Mobile Application for Supply Chain Management: A System Dynamics Approach

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    An appropriate information and logistics structure is of paramount importance for the local fresh food supply chain, which is characterized by market fragmentation and little coordination among suppliers and customers. Mobile communication technologies can help meet this goal because of their large diffusion and real time information management. In this context, a System Dynamics model is developed to study the diffusion pattern and the impacts of a new application for mobile devices supporting supply chain operations. To this end, a reference supply chain in Northern Italy has been considered. The base application and the integration of three additional features assisting in the management of product traceability, electronic payments, and time-sensitive deliveries are analyzed. Simulation results provide insights into the dynamics of adoption of the mobile service and help derive business policies to disseminate its diffusion

    Mobile App Prototype for Course Management in Secondary Education

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    In the last decade, mobile applications have shown an expansion to a great diversity of uses that can be made, which has influenced at different levels (economic, cultural, political), as in the area of learning where it has played a very important role in learning, since now with the development of technologies, children and adolescents are very interested in these new technologies and it is easier for them to use them, which also supports them in learning a great diversity of subjects of their own interest. That is why in this work a prototype of a mobile application for the management of mobile education using the Scrum methodology at the Norbert Wiener University of Lima-Peru, knowing that there are learning problems in students in the classroom, for this, want to provide a mobile application that supports the student to improve their learning. As a result, obtained from the study, was a prototype of a mobile application to improve learning in the Monte Carmelo private school in Lima-Peru, where a virtual model of the mobile application is shown, register the user, login where you can view their classes and share their class assignments, facilitating the user to enter their class and study material, this was achieved using balsamiq, the Scrum methodology with its four phases. The results of the survey conducted to the experts show that in most of the questions they gave a high scale, with the highest average of 4.91 with a standard deviation of 0.302 and only one low scale obtained of 1.45 on average with a standard deviation of 0.52

    A Coordination Model and Framework for Developing Distributed Mobile Applications

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    How to coordinate multiple devices to work together as a single application is one of the most important challenges for building a distributed mobile application. Mobile devices play important roles in daily life and resolving this challenge is vital. Many coordination models have already been developed to support the implementation of parallel applications, and LIME (Linda In a Mobile Environment) is the most popular member. This thesis evaluates and analyzes the advantages and disadvantages of the LIME, and its predecessor Linda coordination model. This thesis proposes a new coordination model that focuses on overcoming the drawbacks of LIME and Linda. The new coordination model leverages the features of consistent hashing in order to obtain better coordination performance. Additionally, this new coordination model utilizes the idea of replica mechanism to guarantee data integrity. A cross-platform coordination framework, based on the new coordination model, is presented by this thesis in order to facilitate and simplify the development of distributed mobile applications. This framework aims to be robust and high-performance, supporting not only powerful devices such as smartphones but also constrained devices, which includes IoT sensors. The framework utilizes many advanced concepts and technologies such as CoAP protocol, P2P networking, Wi-Fi Direct, and Bluetooth Low Energy to achieve the goals of high-performance and fault-tolerance. Six experiments have been done to test the coordination model and framework from di erent aspects including bandwidth, throughput, packages per second, hit rate, and data distribution. Results of the experiments demonstrate that the proposed coordination model and framework meet the requirements of high-performance and fault-tolerance

    Collaborative Consumption On Mobile Applications: A Study Of Multi-sided Digital Platform GoCatch

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    This paper examines the role of IT in developing collaborative consumption. We present a study of the multi-sided platform goCatch, which is widely recognized as a mobile application and digital disruptor in the Australian transport industry. From our investigation, we find that goCatch uses IT to create situational-based and object-based opportunities to enable collaborative consumption and in turn digital disruption to the incumbent industry. We also highlight the factors to consider in developing a mobile application to connect with customers, and serve as a viable competitive option for responding to competition. Such research is necessary in order to better understand how service providers extract business value from digital technologies to formulate new breakthrough strategies, design compelling new products and services, and transform management processes. Ongoing work will reveal how m-commerce service providers can extract business value from a collaborative consumption model

    Individuals’ adoption of smart technologies for preventive health care: a structural equation modeling approach

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    Healthcare is moving towards new patterns and models, with an increasing attention paid to prevention. Smart technologies for mobile health care are emerging as new instruments to monitor the state of essential parameters in citizens. A very debated subject in literature is the critical role played by citizens’ acceptance and willingness to pay for mobile health technologies, especially whereas the services provided are preventive rather than curative. The adoption of such technologies is, indeed, a necessary condition for the success of mobile personalized health care. In this view, a conceptual framework, grounded on Technology Acceptance Model, is developed to explore the determinants of users’ willingness to adopt and pay for a mobile health care application for cardiovascular prevention. Empirical data are collected from a sample of 212 non-hypertensive Italian individuals and analyzed through Structural Equation Modeling. Results confirm that usefulness and ease of use determine both intention to accept and willingness to pay for mobile health smart technologies. Results show also the significant role played by social influence as well the role as antecedents played by technology promptness, innovativeness and prevention awareness. This study offers novel insights to design and promote smart application to improve mobile health care, with implications for researchers and practitioners in health care, research & development, and marketing

    The Development of an intelligent e-health Mobile Application in Indonesia: A Preliminary Study

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    Telehealth has developed as an alternative to cover healthcare in all regions. Telehealth technology cannot be separated from Information and Communication Technology (ICT) that has been infiltrated to human activities nowadays. Internet and mobile phone technologies in Indonesia have become new major needs. Indonesian Government and some institutions have tried to use these technologies in healthcare services in some remote areas. However, some obstacles have been found in the implementation of the technologies such as inadequate ICT infrastructure and lack of policies about healthcare for remote areas. The study was conducted to obtain the recent status of the telehealth in Indonesia to develop a simple and proper mobile application.  A literature study was conducted by collecting relevant information such as reports, regulations and policies released by the Indonesia Government regarding the healthcare infrastructures and latest technology used for telehealth. In addition, updated information from various institutions was also collected. The study reveals that there has been a gradual increase in the number of healthcare infrastructures in some remote areas in Indonesia. The number of ICT infrastructures is also expected to increase every year to facilitate communities in remote areas to be connected with others. Therefore, a mobile model of telehealth using text message services would be designed as a development model based on previous models that have been designed by some researchers
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