[pt] Na atualidade, o telefone celular é um dispositivo que se encontra presente em praticamente todas as situações do indivíduo, em uma condição de quase onipresença ou Ubiquitous Technology. Assim, em 2003, o número de usuários de aparelhos celulares ultrapassou o de telefonia fixa no Brasil. As trocas freqüentes por celulares com sistemas diferentes e sem estudos centrados no usuário vêm a dificultar o uso desses dispositivos. Um ponto do aparelho onde isso é mais sentido é na agenda de contato, uma das funções mais usadas pelos usuários desde os iniciantes até os mais experientes. Para aumentar o nível de usabilidade dos sistemas de Interação Humano-Computador, diversos autores apontam para a necessidade de aplicação de guidelines. Nesse sentido, este trabalho verificou, através da aplicação de diversas técnicas qualitativas e quantitativas, como entrevistas, focus-group, avaliações cooperativas e questionários, a usabilidade de aparelhos celulares pela ótica da presença de critérios ergonômicos de usabilidade. Tais pesquisas foram conduzidas com foco no uso das agendas de contatos dos telefones celulares. / [en] At present time, cell phone is a device found almost everywhere and in every situations of the people s life as a condition known as Ubiquitous Technology. In 2003, the total cell phone users overcame the total fixed line users in Brazil. The frequently cell phone changes with different systems and without user centered studies increase the cell phone use difficulties. An aspect more evident is with one of most used function, the phonebook. Many authors describe the need of guidelines to help the quality of this Human Computer Interaction. This research applied qualitative and quantitative techniques to verify the relation between cell phone usability and application of usability ergonomic criteria. The techniques applied were Interviews, Focus Group, Cooperative Evaluations and Questionnaires. These techniques were developed with focus on cell phones phonebook use.

Studies of modern communication media such as Cell Phones and so called Instant Messengers are popular today. This study focused on these modern techniques, focused on parents as a target group and on what is important for them in everyday communication. By exploratory using three focus groups it became clear that the children, and the link to them was the absolute most important thing for the parents. It became clear that this link to a great extent today exists through the mobile phone. In a following study a Mobile Instant Messenger called My Friends was introduced. It was used by two families during two weeks to see how it would change the communication within the family. The focus was to see how problems with availability were handled, it turned out that: My friends had a more obvious way of indicating availability than the Cell Phone had. It was also consulted before making contact through other media. Emphasis was also put to find out what kind of communication the different media; phone call (Cell Phone), texting and Instant Messenger supports. It showed that three variables seemed to be important when choosing media: • the haste of the business • the goal of the business • the need for precision The bigger knowledge two people had of each other the more the latter was affected but the first two were unaffected. / Studier av moderna kommunikationsmedia som mobiltelefonen och så kallade Instant Messengers är populära idag. Denna studie fokuserade på dessa moderna tekniker, och koncentrerade sig på målgruppen föräldrar, och vad som är viktigt för dem i deras vardagskommunikation. Genom att först i explorativt syfte använda tre fokusgrupper framkom det att barnen, och länken till dem, var det absolut viktigaste för föräldrarna. Det framgår i studien att länken till barnen idag till stor del finns genom mobiltelefonen. I en andra studie introducerades en mobil Instant Messenger kallad My Friends. Denna användes av två familjer under två veckors tid för att se hur den rådande kommunikationen inom familjen förändrades. Här fokuserades det på hur problem med tillgänglighet löstes, och det visade sig att: My Friends hade ett tydligare sätt att visa tillgänglighet än mobiltelefonen, och den konsulterades ibland även när den faktiska kommunikationen skedde genom andra media. Stor emfas lades också på att utröna vilken typ av kommunikation de olika medierna mobiltelefoni, SMS och Instant Messenger stödjer. Det visade sig att tre variabler verkar vara viktiga när val av kommunikationsmedia görs: • ärendets brådska • ärendets mål • behov av exakthet Ju större kännedom två personer hade om varandra desto mer påverkades den senare medan de två föregående förblev oförändrade.

Um estudo sobre as principais causas de quedas de chamadas em célula de rede móvel GSM é realizado por meio da análise estatística do tráfego. O objetivo é minimizar o efeito dessas causas, por meio da alteração de parâmetros de cobertura, como controle dinâmico de potência, borda de cobertura entre células e definição correta de células vizinhas. Para uma operadora celular reduzir a taxa de queda de chamadas (TQC), por intermédio da otimização de parâmetros de cobertura, alterados via comandos remotos, elimina os custos com alterações físicas, como altura das antenas e instalações de novas estações rádio base. Entretanto, alterações de parâmetros devem ser cuidadosamente realizadas, pois podem degradar outros indicadores e acarretar redução da área de cobertura e do tráfego. As duas principais causas da TQC são as quedas repentinas, ocasionadas por falha nos equipamentos envolvidos, ou comportamento dos assinantes e falha na execução do handover e as quedas devido ao nível baixo de sinal na interface aérea. Neste trabalho, com base em dados estatísticos do tráfego na rede GSM, foi escolhida uma célula operando em 900 MHz que apresentava alta TQC. Ajustando os parâmetros de cobertura, a TQC mensal passou de 8,6% para 1,6% e não houve degradação nos demais indicadores de desempenho. / A study about the main causes of dropped calls in mobile network cell GSM is made by means of statistical traffic analysis. The aim is to minimize the effect of these causes through coverage parameters changes, such as dynamical potency control, coverage border between cells, correct definition of neighboring cells. The reduction of dropped call rate by means of optimization of coverage parameters, changed via remote commands, eliminates costs with physical changes, such as the height of the antennas and installation of new radio base station. Parameter changes, however, must be carefully made because they can degrade other indicators and bring coverage area and traffic reduction. The two main causes of dropped call are sudden loss of connection, due to failure in the equipment used, behavior of subscribers and the failure in handover and drops due to the low signal strength in the air interface. In this study, based on statistical data of GSM traffic, a cell operating in 900 MHz that presented high dropped call rate was chosen. Adjusting the coverage parameters, the monthly dropped call rate went from 8.6% to 1.6% and there wasn\'t any degradation of any other performance indicators.

Syftet med uppsatsen är att bidra till att öka kunskapen om hur tekniska hjälpmedel kan användas för att underlätta vardagen för vuxna människor med ADHD.  För att åstadkomma detta görs en genomgång av vilka problem som kan föreligga vid ADHD och vilka strukturer och aktörer som finns i samhället för att erbjuda hjälp och stöd som vuxna med ADHD kan ha behov av. Därefter betraktas vilka strategier och metoder som kan vara användbara för att kompensera för de problem ADHD kan innebära och hur teknik, såväl specialtillverkade hjälpmedel som vanliga produkter, kan användas för att kompensera. En översikt görs av hur teknik kan utformas för att bli användbar, såväl generellt som mer specifikt rörande utformning av hjälpmedel. Detta åskådliggörs genom exempel från några svenska hjälpmedelsprojekt följt av en probleminventering där ett antal studiebesök och intervjuer har tjänat som en bakgrund för förståelse av den stora mängd strukturer, aktörer och hjälpmedel som är möjliga men emellanåt svårtillgängliga vägar till hjälp för vuxna med ADHD.   De som i slutänden kan avgöra vilken nytta ett hjälpmedel innebär är brukarna själva. Deras upplevelser och erfarenheter är en ovärderlig källa till kunskap. Under arbetets gång har frågeställningen preciserats till att lyda: "Hur kan vanliga mobiltelefoner användas som hjälpmedel för att underlätta vardagen för vuxna med ADHD?". För att besvara denna fråga har semistrukturerade riktade intervjuer genomförts med fyra kvinnor med ADHD som använder mobiltelefonen som hjälpmedel i sin vardag. Intervjuerna har transkriberats och kategoriserats för att identifiera hur mobiltelefoner används, vad som fungerar bra och mindre bra och vad kan göra att mobiltelefonen upplevs som ett fungerande hjälpmedel.   Resultaten från bearbetning och analys av intervjuerna sammanställs i kapitlet sammanfattande analys i avsnitt med användbara funktioner, användbara egenskaper och perspektiv på stödbehov och hjälparroll. I diskussionskapitlet föreslås sedan vidare användning av resultaten i avsnitten teoretiska implikationer och praktiska implikationer. Min förhoppning är att dessa avsnitt tillsammans med de listor och tumregler som presenterats i den teoretiska referensramen skall kunna vara användbara för att identifiera behov och möjliga lösningar som kan vara värdefulla att pröva i det enskilda fallet.   En person kan behöva stöd för att ta till vara de möjligheter mobiltelefonen erbjuder som hjälpmedel. Hjälpen kan behövas i något eller alla steg från problemidentifiering och införskaffande till införande, fortlöpande uppföljning och utvärdering av hjälpmedelsanvändningen. Stödet kan behöva vara av så väl strukturell och habiliterande art som av teknisk natur för att hjälpmedelsanvändningen skall bli så framgångsrik som är möjligt. Siktet bör vara mot vad som kan innebära kvalitet, mervärde och avlastning för individen i dennes liv, inte vad som är ADHD-symptom och hur dessa skall kompenseras.   Vuxna med ADHD är en mycket heterogen grupp och de resultat som presenteras i uppsatsen är att betrakta som en utgångspunkt för vidare funderingar och prövning snarare än som färdiga lösningar som passar alla med ADHD.

This is a B.Sc. thesis within the Computer Science programme at the Mid Sweden University. The purpose of this project has been to investigate the possibility of using image based surveillance in smart applications on the Internet-of-Things. The goals involved investigating relevant technologies and designing, implementing and evaluating an application that can perform image recognition. A number of image recognition techniques have been investigated and the use of color histograms has been chosen for its simplicity and low resource requirement. The main source of study material has been the Internet. The solution has been developed in the Java programming language, for use on the Android operating system and using the MediaSense platform for communication. It consists of a camera application that produces image data and a monitor application that performs image recognition and handles user interaction. To evaluate the solution a number of tests have been performed and its pros and cons have been identified. The results show that the solution can differentiate between simple colored stick figures in a controlled environment. Variables such as lighting and the background are significant. The application can reliably send images from the camera to the monitor at a rate of one image every four seconds. The possibility of using streaming video instead of images has been investigated but found to be difficult under the given circumstances. It has been concluded that while the solution cannot differentiate between actual people it has shown that image based surveillance is possible on the IoT and the goals of this project have been satisfied. The results were expected and hold little newsworthiness. Suggested future work involves improvements to the MediaSense platform and infrastructure for processing and storing data. / MediaSense

This thesis examines the relationship between work/life balance and Smartphones (Blackberry, iPhone, Android etc.) Academic research has areas where not much research has been done previously including the qualitative research on work/life balance, positive crossover of work/life balance, newness of Smartphone technology, and consequences of constant connectivity. This study hopes to eliminate some of the gaps in these areas of research and proposes two research questions:  So what does owning a Smartphone mean for work life and home life?  Most importantly can this phone help people towards or assist with the balance they are so looking for or do the phones not impact this balance and just assist in the work life and home life realms separately? A qualitative approach using constructionist and interpretivist views were used to conduct the research. Empirical material was collected during phone interviews with participants in the USA, while supporting material was gathered from conference papers, academic articles, websites, and textbooks. There are two major themes within this paper, work/life balance and Smartphone technology. For work/life balance a common understanding was reached that work and personal life should be kept happy but that doesn’t mean equal.  Also discussed is research about people that put up boundaries in their lives to try and separate things, one group of people likes to have work and personal separate but one group likes them combined.  Research also presents that there are consequences for setting up boundaries but that having the ability to choose where these boundaries are makes for a much happier situation.  On the technology side of research there is support for these devices being used to manage people’s different selves through communication from being more connected to people to feeling left out when the technology is not there. Also mentioned is how people adapt the devices to fit new and unique situations that the devices may not have been intended to be used for.

Nowadays, GPS Mobile has already become important part of our life. GPS is widely used for citizen and military. For military, they could use GPS to navigate the missile or space flight. For citizen, people use GPS, especially GPS Mobile, to navigate car. GPS also helps people to find their way to home. GPS are widely use on, police, company manage system, agriculture and so on. GPS Mobile is the most familiar device for all of us to use. To combine use GPS Mobile and Google Map, people can get their currently location and shortcut to their destination. Also, we can get information from the Google map, like shopping place, bus station and so on. The main purpose of our project is to help people reach this aim. By using our software, you can find your location on the Google map. When you travel abroad, you can have your own language map on the GPS mobile, easily and quickly. That’s really convenience. The most wonderful part, you can play game with your friend by using our software. What you need to do, it is just send a message to anyone you care about and then you can get their location and show it on the map. So, even it is a far distance between you and your friend. You can have fun together. That is our software Findyourfriendlocation.

Submitted in fulfillment of the requirements for the Degree of Master of Management Sciences: Marketing, Durban University of Technology, Durban, South Africa, 2017. / It is widely evident that the mobile phone industry is facing rapid growth, with the increased introduction of cheaper mobile phones in South Africa intensifying competition between such companies. A number of studies have been conducted in other countries on brand preferences, but there remains a gap in knowledge with regard to the South African market. It was therefore warranted to academically research factors influencing consumer brand preferences when purchasing mobile phones, in order to understand these preferences, and what consumers consider when making such purchases. The rationale of the study was to provide new insights for local marketers into the factors consumers consider most when looking at mobile phone brands. The aim of this study was therefore to determine brand preferences for mobile phones amongst students at a selected higher educational institution in South Africa. The study adopted a quantitative research approach, where the data obtained was descriptive and cross-sectional in nature. The research population was made up of students studying at the Durban University of Technology (DUT), where convenience sampling was performed on a target population of 378 students. The sample size was selected by giving questionnaires to those students most available to the researcher. The results were then analysed using the Statistical Package for Social Sciences (SPSS) Version 24.0 software. Validity was ensured by conducting a pre-test of the questionnaire, and the study’s reliability was measured using Cronbach’s Co-efficient Alpha test. The study findings showed that brand popularity, prices, product attributes, social influences and marketing communications all affect mobile phone brand preferences amongst students. The study results also showed, however, that there were some product attributes and social influences that did not influence these preferences. Recommendations are given to industry players to increase their knowledge of these important factors, to aid with the improvement of their brands and increasing their market preference in this highly competitive industry. / M

No description available.

The purpose of this study was to investigate the use of mobile phones in organizing ad-hoc vehicle ridesharing based on hitch-hiking trips involving private car drivers and commuters in South Africa. A study was conducted to learn how hitch-hiking trips are arranged in the urban and rural areas of the Eastern Cape. This involved carrying out interviews with hitch-hikers and participating in several trips. The study results provided the design specifications for a Dynamic Ridesharing System (DRS) tailor-made to the hitch-hiking culture of this context. The design of the DRS considered the delivery of the ad-hoc ridesharing service to the anticipated mobile phones owned by people who use hitch-hiking. The implementation of the system used the available open source solutions and guidelines under the Siyakhula Living Lab project, which promotes the use of Information and Communication Technology (ICT) in marginalized communities of South Africa. The developed prototype was tested in both the simulated and live environments, then followed by usability tests to establish the viability of the system. The results from the tests indicate an initial breakthrough in the process of modernizing the ad-hoc ridesharing of hitch-hiking which is used by a section of people in the urban and rural areas of South Africa.