This thesis deals with The Royal Mint and it's online strategy. Using web analytics tools and usability testing it analyzes a current state of website and e-shop of the company. From the obtained figures about visits of the website, keywords, conversion rate, traffic sources and others, the customers' behavior is analyzed and subsequent conversion rate and user friendliness-raising measures are evaluated. The thesis summarizes recommendations resulting from the carried analyses in order to increase the online sales, bring new customers online and increase the loyalty of the existing ones.

The following thesis aims to account for and describe the variations of perceptions that public librarians have regarding user-friendliness of the classification systems that are used in Swedish public libraries. How user-friendliness and the classification systems are perceived are examined to understand how the librarians might connect these two together.  The thesis is based on the qualitive research methodology of phenomenography which is a method used in order to create an understanding of the variations of perceptions of a phenomenon. The phenomenographic method is applied by using qualitative interviews. For this study eight public librarians in the Stockholm region have been interviewed. The interviews were conducted in a phenomenographic manner and were set out to be a dialogue between the interviewer and the interviewee. All the libraries in the study are currently working in the SAB classification system. The study shows that there are a variation of different perceptions of user-friendliness and the classification systems. One perception that is found is that SAB is not user-friendly because of the lack of logic within the system and it is a common impression that users find the system confusing. A perception also states that SAB is “a dead system”, referring to the fact that SAB no longer is updated. The perception means that in time, SAB will not be a useable system. Another perception contradicts the first one and says that SAB is a system that users usually understand to a certain degree. The users have the capability to operate within the system to find literature they seek but as they submerge deeper into the systems hierarchy most users usually get confused. Another perception is that the connection between user-friendliness and classification systems is not of importance. This perception proclaims that user-friendliness can be achieved by working with signage and shelf placement instead. The study also shows that there is a gap between how the librarians perceive the classification systems and how they imagine their users perceiving them. This is shown in the lack of dialogue between users and librarians. A common perception among the librarians is that they have what they call a “home blindness” concerning the classification systems. This statement is made referring to the fact that librarians work within these systems day by day and easily forgets to reflect on the difficulties that a first-time user might face as they try to understand the systems.

Development is currently being driven towards products that are linked to sustainability. Products with a positive imprint in sustainability are becoming increasingly valuable to consumers, which in turn creates increased value for producers and suppliers. The current pricing tools do not have room to consider the value of the sustainable properties of new products. This is something that the wood industry is following and is now facing the challenge of estimating the value of sustainable production. The study aims to estimate a value for environmentally/climate-friendly products in the wood industry from a customer perspective. This has been done by performing a conjoint analysis using PAPRIKA (Potentially All Pairwise Rankings of all possible Alternatives), to determine the relative importance of 6 product properties. The results of the study show that price is the most important property of wooden floor decking. The mean weight of the 6 attributes included in the study is; price (25,0%), aging (21,9%), maintenance intervals (16,9%), climate impact (16,9%), dimensional stability (10,2%) and biocides (9,1%). The conclusion of the results is if the purpose is to cover the majority of consumers, several different products with different properties should be produced. The results also indicate that the weight for sustainability attributes can increase if the consumer becomes more informed and gains a broader knowledge of the meaning of the properties. / Utvecklingen drivs just nu mot produkter som anknyts till hållbarhet. Produkter med ett positivt avtryck inom hållbarhet blir allt mer värdefull för konsumenten vilket i sin tur skapar ett ökat värde för producenter och leverantörer. De nuvarande verktygen för prissättning har inte utrymme att överväga värdet för hållbara egenskaper hos nya produkter. Denna utveckling är en central del inom träindustrin, som nu står inför utmaningen att estimera värdet av en hållbar produktion. Studien syftar att estimera ett värde för miljö-/klimatvänliga produkter inom träindustrin från ett kundperspektiv. Detta har gjorts genom att utföra en conjointanalys med användandet av PAPRIKA (Potentially All Pairwise RanKings of all possible Alternatives), för att bestämma den relativa betydelsen för 6 produktegenskaper. Resultatet av studien visar att priset är den viktigaste egenskapen hos trallvirke. Medelvikten för de 6 egenskaperna som inkluderats i studien är; pris (25,0%), åldring (21,9%), underhållsintervall (16,9%), fossilt kolspår (16,9%), dimensionsstabilitet (10,2%) och biocider (9,1%). Slutsatsen av studiens resultat är om sortimentet för trallprodukter ska täcka majoriteten av konsumenterna, bör man ha flera olika produkter med olika egenskaper. Resultatet tyder också på att vikten för hållbarhetsattributen kan öka ifall konsumenten blir mer informerad och får en bredare kunskap om egenskapernas innebörd.

I ett projektarbete i en ingenjörsutbildning används olika metoder och verktyg, för att planera och strukturera arbetet. En möjlighet är att använda fysiska projekttavlor. Det finns även interaktiva smartskärmar med uppkoppling till internet, som möjliggör arbete på distans. Detta arbete fokuserar på smartskärmen Samsung Flip 2, och undersöker om det går att använda den för projektarbeten i ingenjörsutbildningar. Projektet inleds med en förstudie, vars fokus är på whiteboardtavlor, planeringstavlor och interaktiva skärmar. Vidare utförs opinionsundersökningar med två olika studentgrupper. Med hjälp av de svar som erhållits, identifieras de funktioner som anses viktiga när projekttavlor används i utbildningen. Dessutom för- och nackdelar vägs för olika typer projekttavlor. En önskebild av en projekttavla, som är en samling av önskade egenskaper, tas fram baserad på förstudien och opinionsundersökningarna. Sedan testas mjukvaruverktygen Lucidchart, Notion, Trello och Jira i samband med smartskärmen Samsung Flip 2, för att se om det går att uppnå önskebilden. Resultaten av testningen används sedan för att utvärdera Samsung Flip 2. Det visar sig att den inte är en lämplig ersättning för en fysisk whiteboardtavla i projektarbeten. Utvärdering av andra smarskärmar och andra mjukvaruverktyg kan ge andra resultat. / In a project in an engineering education, different methods and tools are used, to plan and structure the work. One possibility is to use physical project boards. Another alternative is using an interactive smart-screen with access to the internet, which gives the opportunity to work remotely. This work focuses on the smart-screen Samsung Flip 2, and examines if it is possible to use it for projects in an engineering education. The project is initiated with a pre-study, where the focus is on whiteboards, project boards and interactive screens. Further on opinion polls are executed with two different student-groups. The answers help identify which functions that are important when project boards are used within the education, as well as pros and cons for different types of project boards. An ideal-picture of a project board, which is a collection of desired functionalities, is made based on the pre-study and opinion polls. After that the softwares Lucidchart, Notion, Trello and Jira are tested in combination with the smart-screen Samsung Flip 2, to see if it can fulfil the ideal-picture. The result from the tests is used to evaluate Samsung Flip 2. The evaluation shows that Samsung Flip 2 is not a suitable replacement for a physical whiteboard. Evaluations on other smart-boards and other softwares may yield a different result.

Organizations have been changing their IT structure due to several reasons such as merger of two companies, acquisition of one company by another or IT consolidation within a company. IT policies are one of the areas which get redefined during such changes. However the lack of test facilities, time, funds, or human resources and expertise for change assessment of reengineering IT infrastructure such as integration of independently working systems or switching from on premises IT resources to cloud based IT resources, can be left unassessed. The absence of forthcoming changes' assessment can cause trouble at many levels of any organization, depending on which business operation is affected. Since every employee with a workstation is an end user, it is safe to say that end users or employees are the target of those unforeseen impacts. This situation can be handled by a working process which is able to adapt the changes made to IT systems security. This thesis presents a process that highlights post change issues and can help organizations to adapt to the changes in the environment and minimizes highlighted issues hence called Adaptable Information and Data Security Process. A system or entity is adaptable if it can adapt to changes. The results of this research are derived by putting the proposed process in use to calculate monetary and time loss in any project using different variables. Those results can encourage and support middle management to propose investment in user training and local support staff when presenting their case to upper management. Our results show the loss of 0.24% of a 200,000 kroner project to be completed in 44 weeks due to lack of adequate training of technical staff and users training to use IT systems. Another dimension of loss is calculated to show 4.2 hour of time loss on top of monetary loss given a total of 44 weeks of project period. The proposal suggests that the calculations of those loses can help management invest the time and money on users’ training and onsite technical support which will result in less investment and long lasting results as oppose to conventional approach that is lack of users training and off shore support that may reduce expenses in short term but causes significant long term losses. / Organisationer har förändra sin IT-struktur på grund av flera skäl, såsom sammanslagning av två företag, förvärv av ett företag med en annan eller ITkonsolidering inom ett företag. IT-politik är ett av de områden som får omdefinieras under sådana förändringar. Dock är det faktum att dessa omedelbara förändringar kommer att medföra en massa problem som ofta förbises eller det är oförutsedd eftersom den fulla effekten av förändring inte kunde bedömas. Dessa oförutsedda konsekvenser kan orsaka problem på många organisationsnivåer beroende på vilken affärsverksamhet påverkas. Eftersom varje anställd på en arbetsstation är en slutanvändare eller anställd, är det säkert att säga att slutanvändare eller anställda är föremål för dessa oförutsedda konsekvenser. Denna situation kan hanteras genom en arbetsprocess som är i stånd att anpassa de ändringar som gjorts till IT-system säkerhet. Avhandlingen presenterar en process som lyfter fram förändringsproblem och kan hjälpa organisationer att anpassa sig till förändringarna i miljön och minimerar markerade problem, så kallade anpassningsbar informationsoch datasäkerhetsprocess. Ett system eller en enhet är anpassningsbar om den kan anpassa sig till förändringar. Resultaten av denna forskning är härledda genom att den föreslagna processen används för att beräkna monetär och tidsförlust i något projekt med olika variabler. Dessa resultat kan uppmuntra och stödja mellanhantering för att föreslå investeringar i användarutbildning och lokal supportpersonal när de presenterar sitt ärende för den överordnade ledningen. Våra resultat visar förlusten på 0,24% av ett projekt på 200 000 kronor som ska slutföras på 44 veckor på grund av brist på adekvat utbildning av teknisk personal och användarutbildning för att använda IT-system. En annan dimension av förlust beräknas visa 4.2 timme tidsförlust ovanpå monetär förlust med totalt 44 veckor projektperiod. Vårt förslag tyder på att beräkningarna av de som förlorar kan hjälpa ledningen att investera i tid och pengar på användarutbildning och teknisk support på plats, vilket kommer att leda till mindre investeringar och långvariga resultat som motsätter sig konventionellt tillvägagångssätt som bristen på utbildning av användare Landsstöd som kan minska kostnaderna på kort sikt men orsakar betydande långsiktiga förluster.

Radio spectrum has become increasingly scarce due to the proliferation of new wireless communication services. This problem has been exacerbated by fixed bandwidth licensing policies that often lead to spectral underutilization. Cognitive radio networks (CRN) can address this issue using flexible spectrum management that permits unlicensed (secondary) users to access the licensed spectrum. Supporting real-time quality-of-service (QoS) in CRNs however, is very challenging, due to the random spectrum availability induced by the licensed (primary) user activity. This thesis considers the problem of real-time voice transmission in CRNs with an emphasis on secondary network ``friendliness''. Friendliness is measured by the secondary real-time voice capacity, defined as the number of connections that can be supported, subject to typical QoS constraints. The constant bit rate (CBR) air interface case is first assumed. An offline scheduler that maximizes friendliness is derived using an integer linear program (ILP) that can be solved using a minimum cost flow graph construction. Two online primary scheduling algorithms are then introduced. The first algorithm is based on shaping the primary spectral hole patterns subject to primary QoS constraints. The second applies real-time scheduling to both primary traffic and virtual secondary calls. The online scheduling algorithms are found to perform well compared to the friendliness upper bound. Extensive simulations of the primary friendly schedulers show the achievable secondary voice capacity for a variety of parameters compared to non-friendly primary scheduling. The thesis then considers the variable bit rate (VBR) air interface option for primary transmissions. Offline and online approaches are taken to generate a primary VBR traffic schedule that is friendly to secondary voice calls. The online VBR schedulers are found to perform well compared to the friendliness upper bound. Simulation results are presented that show the effect of the primary traffic load and primary network delay tolerance on the primary network friendliness level towards potential secondary voice traffic. Finally, secondary user friendliness is considered from an infrastructure deployment point of view. A cooperative framework is proposed, which allows the primary traffic to be relayed by helper nodes using decode-and-forward (DF) relaying. This approach decreases the primary traffic channel utilization, which, in turn, increases the capacity available to potential secondary users. A relay selection optimization problem is first formulated that minimizes the primary channel utilization. A greedy algorithm that assigns relay nodes to primary data flows is introduced and found to perform well compared to the optimum bound. Results are presented that show the primary network friendliness for different levels of primary channel utilization. / Dissertation / Doctor of Philosophy (PhD)

Магистерская диссертация посвящена вопросу оценки социального инвестирования. Целью исследования является разработка проекта социальной направленности в области доставки газа для отдаленного региона России. Автором была предложена конкретная система показателей оценки социальной эффективности проекта в краткосрочной, так и в долгосрочной перспективе. / The master's thesis is devoted to the evaluation of social investment. The aim of the study is to develop a project of social orientation in the field of gas delivery for a remote region of Russia. The author proposed a specific indicator system for assessing the social effectiveness of the project in the short and long term.

The comparison of technical and economic parameters of prefabricated monolithic systems of civil buildings (on the example of Shanghai) by cost, duration and environmental friendliness of construction is carried out. / Выполнено сравнение технико-экономических параметров сборно-монолитных систем гражданских зданий (на примере г. Шанхай) по себестоимости, продолжительности и экологичности строительства.

No / People, systems, and things in the cities generate large amount of data which is considered to be the most scalable asset of any smart city. Linux users are rapidly increased in last few years, and many large multinational organizations are deploying long distance high bandwidth (LDHB) cloud networks for centralizing the data from various smart cities on a central location. TCP is responsible for reliable communication of data in these cloud networks. For reliability communication among various smart cities, a number of TCP congestion control mechanisms have been developed in the past. TCP Compound, TCP Fusion, and TCP CUBIC are the default TCP congestion control mechanisms for Microsoft Windows, Sun Solaris, and Linux operating systems respectively. The response function of TCP CUBIC is higher than the response function of Standard TCP, which is a trademark congestion control mechanism. As a result, TCP CUBIC does not behave friendly with Standard TCP in LDHB cloud networks. The Congestion Window (cwnd) reduction and growth of TCP CUBIC is very aggressive, which causes high packet loss rate and unfair share of available link bandwidth among competing flows from various smart cities. The aim of this research is to design a new TCP congestion control mechanism for Linux operating system to achieve maximum performance in LDHB cloud networks being used by smart cities. In this paper, congestion control module for slow start (CCM-SS) is designed by increasing the lower boundary limit of cwnd size in slow start phase of communication. Congestion control module for loss event (CCM-LE) is designed by increasing the cwnd reduction rate at each packet loss event and finally Advance Response Function for TCP CUBIC (ARFC) is proposed to design a new congestion control mechanism for Linux operating system. NS-2 is used to compare the performance of TCP CUBIC* with TCP CUBIC in short distance high bandwidth (SDHB) and long distance high bandwidth (LDHB) cloud networks. Results show that TCP CUBIC* has outperformed in LDHB networks, at least by a factor of 18% as compared to TCP CUBIC.

Syftet med denna kandidatuppsats i informatik är att undersöka vad som påverkar kundernas uppfattning av servicekvalitet vid införandet av ett affärssystem hos fallföretaget Askk AB. Genom intervjuer med fallföretagets kunder har studien identifierat flera faktorer som bidrar till kundernas upplevelse av servicekvaliteten. Kunderna uppskattade konsulternas proaktiva och engagerade tillvägagångssätt, snabba och effektiva kommunikation, samt deras lösningsorienterade inställning och tillgänglighet. Dessa faktorer bidrog till att skapa en positiv upplevelse av servicekvaliteten, tillsammans med systemets tillförlitlighet och användarvänlighet.