Chapter

Application and Service Case Studies

March 2009

In book: Mobile Middleware: Architecture, Patterns and Practice (pp.271-297)

Authors:

University of Helsinki

Mobile ServicesMobile ServerMobile AdvertisementMobile Push EmailMobile VideoMobile Widgets and WidSetsAirline ServicesRevisiting Mobile PatternsSummaryBibliography

ResearchGate has not been able to resolve any citations for this publication.

ResearchGate has not been able to resolve any references for this publication.

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Introducing IT: lessons from case studies of e-mail

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K. Jakobs

Adoption and implementation of electronic messaging systems in large international organisations creates a number of non-technical problems. Based on results of case studies of organisational implementations of e-mail services these issues are identified and discussed, and the strategies employed to overcome them analysed. Subsequently, end-user issues related to messaging services are discussed. ... [Show full abstract] We examine the different degrees of user training and support offered, and the mechanisms in place allowing end-users to contribute to subsequent service developments and enhancements. We conclude with recommendations for tackling some of the problems observed.

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VoIP emergency communications is a promising approach to improving the safety of citizens worldwide. The transition required in this scope includes substituting the legacy PSTN/SS7 based emergency call system by Next Generation IP based components for call establishment and control. Thereby, SIP is used as a session control protocol and RTP as the means to transfer emergency data between the ... [Show full abstract] caller and the corresponding Public Safety Access Point (PSAP). The emergency data is not only restricted to voice communication but can cover a rich variety of data, which can be acquired by different means (including the end user devices) and transmitted over IP. This includes video, geo-positioning data, voice, Real Time Text, and sensor data in line with emerging IoT architectures and approaches. A vital aspect in this scope is given by the performance of the underlying network, including its capability to establish calls in emergency situations and to transfer the data required for serving the situation. Therefore, in this paper we evaluate the computational performance of the most recent VoIP emergency system implementation, which was developed by the H2020-EMYNOS project as a realization of the EENA NG112 Long Term Definition (LTD) vision. We perform a series of trials and evaluate the performance of the EMYNOS system in a multi-party lab environment established during the project. We evaluate the time needed to perform basic emergency call operations over IP, whilst in parallel generating Internet type of background traffic. Correspondingly, we worked out a methodology and implemented it in our testbed, which are both presented in the current paper. The obtained numerical results lead to the conclusion that SIP based emergency services stand a good chance to replace legacy systems when it comes to their performance.

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August 2011 · Korean Journal of Local Government & Administration Studies

문승연

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Adoption and implementation of electronic messaging systems in large international organisations creates a number of non-technical problems. Based on results of case studies of organisational implementations of e-mail services these issues are identified and discussed, and the strategies employed to overcome them analysed. Subsequently, end-user issues related to messaging services are discussed. ... [Show full abstract] We examine the different degrees of user training and support offered, and the mechanisms in place allowing end-users to contribute to subsequent service developments and enhancements. We conclude with recommendations for tackling some of the problems observed

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This paper introduces a real case study related to a harmful interference problem which affected the Aeronautical Mobile Service radio communications, between the Lisbon International Airport's Control Tower and the aircrafts approaching the runway. Passive Intermodulation (PIM) was in the origin of this problem. The paper will address this type of case study and explain its origins.

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As the selection of products and services becomes profuse in the technology market, it is often the delighting user experience (UX) that differentiates a successful product from the competitors. Product development is no longer about implementing features and testing their usability, but understanding users' daily lives and evaluating if a product resonates with the in-depth user needs. Although ... [Show full abstract] UX is a widely adopted term in industry, the tools for evaluating UX in product development are still inadequate. Based on industrial case studies and the latest research on UX evaluation, this workshop forms a model for aligning the used UX evaluation methods to product development processes. The results can be used to advance the state of "putting UX evaluation into practice".

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Assessment and management of obesity in Tier 3 services - a case study

April 2019 · Endocrine Abstracts

Rebecca Rogers

With over 650 million people obese in 2016 and 2.8 million people dying a year from being overweight or obese, the obesity epidemic is now linked to more deaths worldwide than being underweight. This high mortality rate and disease burden are potentially preventable if risk factors such as unhealthy diet and physical inactivity were eliminated. The classification of obesity is defined as a Body ... [Show full abstract] Mass Index (BMI) equal to or above 30 kg/m2. Weight management services in the UK are divided into tiers. Tier 1 and 2 cover advice and lifestyle interventions in primary care; Tier 3 covers specialist weight management services; Tier 4 covers bariatric surgery. Referral to Tier 3 services is criteria led, accepting patients with a BMI of >35 in the presence of diabetes and/or significant comorbidities or BMI >40 without the presence of these conditions. A 58 year old man was seen in the Tier 3 services at the Norfolk and Norwich University Hospital, with a BMI of 39.1 kg/m2. He wished to achieve a BMI of 35 g/m2 to help with preoperative fitness for a troublesome hernia. He suffered hypertension, obstructive sleep apnoea, recurrent venous thromboembolism and hypogonadotrophic hypogonadism (normal LH/FSH, testosterone level <0.4 ng/dl). On exploring the patient’s beliefs about weight gain, he felt this stemmed from physical inactivity since early adulthood, he did not suffer any psychological issues or binge eating behaviours. Examination indicated insulin resistance, there were no cushingoid features. An Intensive Weight Management Programme (IVMP) consisting of 3 phases each lasting 8 weeks was initiated. Throughout the programme, the patient was seen fortnightly. Phase 1 induced rapid and consistent weight loss using a low energy liquid diet of; 3–5 pints of semiskimmed milk, 2 pints of free fluid, fibre sachets and multivitamins daily. This provided 800–1200 kcals and 60–100 g of protein. Phase 2 stabilised weight with the reintroduction of a solid food in combination with pharmacotherapy. Phase 3 provides advice in the principles of behaviour change and an increase in activity to maintain the weight that has been lost. The IVMP was a success, on completion the patient’s BMI decreased to 31.8 kg/m2, his exercise tolerance increased and obstructive sleep apnoea improved dramatically. Additionally, his testosterone levels returned to normal. Obesity is a complex medical, psychosocial condition affecting all ages and income groups. There is a pressing need to prevent premature death and improve the quality of life of millions of people.

Application and Service Case Studies

Abstract

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