135,278 research outputs found

    Modelling mobile health systems: an application of augmented MDA for the extended healthcare enterprise

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    Mobile health systems can extend the enterprise computing system of the healthcare provider by bringing services to the patient any time and anywhere. We propose a model-driven design and development methodology for the development of the m-health components in such extended enterprise computing systems. The methodology applies a model-driven design and development approach augmented with formal validation and verification to address quality and correctness and to support model transformation. Recent work on modelling applications from the healthcare domain is reported. One objective of this work is to explore and elaborate the proposed methodology. At the University of Twente we are developing m-health systems based on Body Area Networks (BANs). One specialization of the generic BAN is the health BAN, which incorporates a set of devices and associated software components to provide some set of health-related services. A patient will have a personalized instance of the health BAN customized to their current set of needs. A health professional interacts with their\ud patientsÂż BANs via a BAN Professional System. The set of deployed BANs are supported by a server. We refer to this distributed system as the BAN System. The BAN system extends the enterprise computing system of the healthcare provider. Development of such systems requires a sound software engineering approach and this is what we explore with the new methodology. The methodology is illustrated with reference to recent modelling activities targeted at real implementations. In the context of the Awareness project BAN implementations will be trialled in a number of clinical settings including epilepsy management and management of chronic pain

    A survey on cyber security for smart grid communications

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    A smart grid is a new form of electricity network with high fidelity power-flow control, self-healing, and energy reliability and energy security using digital communications and control technology. To upgrade an existing power grid into a smart grid, it requires significant dependence on intelligent and secure communication infrastructures. It requires security frameworks for distributed communications, pervasive computing and sensing technologies in smart grid. However, as many of the communication technologies currently recommended to use by a smart grid is vulnerable in cyber security, it could lead to unreliable system operations, causing unnecessary expenditure, even consequential disaster to both utilities and consumers. In this paper, we summarize the cyber security requirements and the possible vulnerabilities in smart grid communications and survey the current solutions on cyber security for smart grid communications. © 2012 IEEE

    Mobile Enterprise Resource Planning Adoption and Implementation in Norwegian Organizations A Case Study of RamBase

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    Master's thesis inIn an age of ongoing technological advancements and mobility, there is an ever-increasing need by the companies to find smart solutions to manage their businesses. Organizations around the world use Enterprise Resource Planning (ERP) system, a systemic technological tool, to increase their performances. Researchers agree upon the fact that mobile information technology (MIT) is an indispensable asset for the longevity of an organization’s innovation practices and economic stability. With the IT revolution, the number of enterprises adopting, implementing, and using mobile information and communications technology has increased. The mobile enterprise generates productivity in small projects and saves costs in the medium to large scale companies giving competitive advantages. RamBase, a straightforward cloud-based Norwegian ERP provider, has a desire to evaluate its current mobile computing application potential in both IOS and Android operating systems and to look for improvement opportunities in this branch. Cloud ERP enhances tracking of incoming raw material and outgoing final products to extend the visibility and control inside and outside the enterprise. As very few studies have been done on the implementation and adoption of a mobile ERP (M-ERP) application so in this thesis, we aim to explore the importance of Mobile ERP (M-ERP) for today’s business environment. We specifically studied the research question: How can RamBase develop a productive M-ERP for its customers while considering the crucial implementation success factors? We applied the qualitative approach by conducting a literature review in addition to a case study. An online survey related to experiences with mobile ERP use, strengths and challenges and opinions on the implementation of mobile ERP was conducted. A questionnaire was formulated to collect data points for the desired variables and was sent out to major firms which were using RamBase’s ERP system. It consisted of both open-ended and closed-ended questions. The questionnaire data were analyzed using descriptive statistics, thematic analysis, and content analytical techniques. Survey results were discussed during a consultation with fellow students to identify key considerations in the implementation of mobile ERP. Our findings suggest that the critical ERP modules for small-medium enterprises (SMEs), which have employees ranging from 10 to 249 and are operating in the manufacturing industry are administration, production, and finance. Previous studies have shown that the access to required modules through the mobile phone enhances the productivity and performance of an organization. The core features of the M-ERP applications include the real-time query of information regardless of location, traceability of information and approval of workflow. The challenges identified by the users and validated by the literature include security, screen size, platform compatibility, training, and user interface. Due to significant complexities in each ERP module, it is not feasible to start developing a mobile application for the whole module. A simple application with the key features of the module will have more usability than a complex whole module application. RamBase should identify the functionality of production, administration, and finance M-ERP modules according to the insights available from their customers. The initial applications should be small with specific functionality for a single group of people. This bottom to top approach will save time and money.submittedVersio

    Implementing Operations Support Systems in E-Health Based Systems

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    Information and communication technologies have been introduced in different dimensions of the health care. e-Health is the use of advanced communications technologies such as the Internet, portable, wireless and other sophisticated devices to support health care delivery and education. It has the potentials of improving the efficiency of health care delivery globally. With the increasing demand for information at the point of care, health care providers could explore the advances provided by mobile technologies and the increasing capabilities, compactness and pervasiveness of computing devices to adopt operations supports systems (OSS) in e-Health based systems in order to provide efficient services and enhance their performances. In this paper, we present, the development and implementation of operations supports in e- Health based systems. The system promises to deliver greater productivity for health care practitioner

    Mobile Commerce and Applications: An Exploratory Study and Review

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    Mobile commerce is enabling the development of additional revenue streams for organizations through the delivery of chargeable mobile services. According to the European Information Technology Observatory, the total amount of revenue generated by mobile commerce was reported to be less than {\pounds}9 million in the United Kingdom in 2001. By 2005 this had, at least, doubled and more recent industry forecasts project significant global growth in this area. Mobile commerce creates a range of business opportunities and new revenue streams for businesses across industry sectors via the deployment of innovative services, applications and associated information content. This paper presents a review of mobile commerce business models and their importance for the creation of mobile commerce solutions.Comment: Journal of Computing online at https://sites.google.com/site/journalofcomputing

    When Cost-Efficient Technologies Meet Politics: A Case Study of Radical Wireless Network Implementation

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    Cost efficiency has been a dominant perspective in the traditional IT literature. However, in complex technology and business environment, the widely recognized cost efficient assumption of information technology has been increasingly challenged. Drawing from a case study of wireless network implementation situated in a politically sensitive workplace, this paper provided practice insights for IT managers in today’s networked economy. More specifically, stories experienced in the case study illustrated that despite well-calculated cost efficiency of wireless network infrastructure, the radical implementation process in the case organization encountered enormous challenges and opposition due to the fact that administrators failed to consider various stakeholders’ positions and interests. Eventually, the implementation objectives and outcome were considerably undermined. Implications from this empirical case research reemphasized the significance of understanding political forces situated in any business environment where different stakeholders hold conflicting interests. Lessons learned from the case story further encouraged IT managers and policy makers to better strategize emerging information technology in general and wireless networks in particular as the whole global society and business environment are increasingly facing an emerging wireless world

    System architecture and deployment scenarios for SESAME: small cEllS coordinAtion for Multi-tenancy and Edge services

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    The surge of the Internet traffic with exabytes of data flowing over operators’ mobile networks has created the need to rethink the paradigms behind the design of the mobile network architecture. The inadequacy of the 4G UMTS Long term Evolution (LTE) and even of its advanced version LTE-A is evident, considering that the traffic will be extremely heterogeneous in the near future and ranging from 4K resolution TV to machine-type communications. To keep up with these changes, academia, industries and EU institutions have now engaged in the quest for new 5G technology. In this paper we present the innovative system design, concepts and visions developed by the 5G PPP H2020 project SESAME (Small cEllS coordinAtion for Multi-tenancy and Edge services). The innovation of SESAME is manifold: i) combine the key 5G small cells with cloud technology, ii) promote and develop the concept of Small Cells-as-a-Service (SCaaS), iii) bring computing and storage power at the mobile network edge through the development of non-x86 ARM technology enabled micro-servers, and iv) address a large number of scenarios and use cases applying mobile edge computing
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