The thesis deals with three document retrieval models based on logic: the Boolean model,the fuzzy model and the Van Rijsbergen model.In Chapter 1, the author presents the purpose of the thesis. This is to give the logical foundationof the models, to describe them and to examine them critically. In Chapter 2, some importantnotions in document retrieval are presented. Chapter 3 is devoted to the Boolean model, Chapter4 to the fuzzy model and Chapter 5 to the Van Rijsbergen model.These three chapters are organized in the same way. First, the logical foundation of the modelis given.

The media industry in general and the newspaper in particular is going through major changes ? technological, logistical, economical ? due to the dropping sales and width of the printed daily newspaper. Few organisations have been spared the necessary rationalizations and cut-downs in staff. All of them are expected to produce more and better content, in more and new channels and platforms, with less resources. Some have been preparing for this a long time, others have never entered the digital world of news.

2014 is a special year in Sweden: for the first time elections to the European parliament and the national elections coincides, creating a"Super election year". This year has also seen the rebirth of an old way of campaigning: door-to-door canvassing. For the first time in 50 years the two biggest political parties, the Social Democrats and the Moderate Party, have decided to create a campaign based on personal meetings with the voters in their own home. To investigate this old-new way of campaigning, this study presents an overview of the history of door-to-door canvassing in Sweden and the research in political marketing associated with the phenomena. Based on that, a new model is constructed to help analyze and map the Swedish canvassing-campaigns.

Digital marketing has been changing continuously and rapidly since the introduction of Web2.0 ten years ago (Lin, Li, Deng, & Lee, 2013). Companies are now engaging their users intheir digital marketing by providing with interactive contents in digital campaigns. The digitalcampaigns are getting more converge with SNS (social networking sites) in order to let the usershare the content with others and therefore the e-WOM (electronic word of mouth) helps thecompanies digital campaigns to be shared by more users (Moran, Muzellec, & Nolan, 2014).The interactive content in the digital campaigns have shown to provide for engaged users andtherefore leads to loyal users. The reason for this has its roots in the culture of consumptionthat has brought our everyday consumption to a whole new level where we no longer justconsumes a product, we are the brand (Davis, 2013).The study, Click here for solidarity, aims to explain the interactive phases and rhetorical elementsthat companies use to engage the user to interact with the content of the digital campaigns.The study is based on four digital campaigns in four different market areas in order to providewith an overall picture of how companies work with interactive and rhetorical elements. Thusthe study falls into the area of marketing and branding.

Syftet med uppsatsen är att identifiera effekter av införandet av digital fakturahantering genom att jämföra arbetsprocessen före och efter. Företag investerar i ny teknik med förhoppning om att uppnå ekonomiska vinster och effektivitetsökningar i organisationen. Digital fakturahantering berör ett företags leverantörsfakturor. Fakturorna scannas till digitala bilder då de anländer och skickas digitalt till användare för attest och kontering. Sökningar i efterhand av redan behandlade fakturor sker i systemet för digital fakturahantering.

The purpose of this thesis is to deepen the understanding of our contemporary description of digital literacy using the perspective on knowledge from the Nicomachean Ethics by Aristotle. I have chosen to deal with the problem using a hermeneutic approach. The method of inquiry is based on close reading of the selected literature. The selection itself has been made after a strategic selection regarding perspective on knowledge and digital literacy. It appears in the thesis that there are substantial differences but also similarities between our contemporary description of digital literacy from Recommendation of the European Parliament and of the Council of 18 December 2006 on key competences for lifelong learning and the perspective on knowledge from the Nicomachean Ethics by Aristotle.Still, the result has been possible to use for the purpose of the thesis since the problem has an answer and a deepened impression of the understandings of digital literacy..

The purpose of this study is to examine in what extent primary school teachers, teaching children in the age of 6 to 9, choose to use digital tools in their teaching of mathematics. I also want to examine what these teachers think, in terms of advantages and disadvantages, about using digital tools on their mathematics lessons. Finally I want to examine what skills they possess about digital tools.I am using a quantitative method to collect my data. The quantitative survey consisted of a questionnaire survey of ten questions that 38 primary school teachers have answered.The results of my study show that the teachers to some extent use digital tools when they teach mathematics and that the availability of various digital tools are generally good. But it turns out that the availability of tools is not a guarantee that they are used in teaching of mathematics.

Data retrieved from airborne laser scanning represents a new source of forest data. Today, the technology has matured so that it can function in an operational environment. The aim of this study was to compile areas of application of laserdata in forestry. Moreover to analyze costs and accessibility of laserdata. The goal was to provide private forest owners information to support assessments of possible benefits of laserdata.

Ever since the development of the pc and their software, in the early 80´s,architects way of work have changed a lot. Nowadays most of the architectspresent all their works digitally and not with hand drawn material, as they didbefore the pc boom.Digital visualisation technique pushes the limits, when it is about presentingarchitecture projects virtual reality.This report studies how digital visualization technique is used among thearchitects today.Together with architects from ABAKO architect firm in Gothenburg, Sweden,interviews has been made to give answers about what they think about digitalvisualization technique. What are the opportunities, advantages- anddisadvantage with this digital technique?The answers from the architects, together with work that has been done withdigital visualization technique in a project called Project Sofiedal, shows thatthis technique has big opportunities when it comes to create nice looking VRpresentations. The result in this report also shows that this digital technique ismore time demanding compared to hand drawn presentations.The investigation shows that digital visualization technique is a goodcompliment when it is about showing the citizens how future projects willaffect the surrounding.

The postindustrial market increasingly demands service infused products to add more value to the customer in order to be competitive. Much research regarding digitalized services indicates that companies have to be innovative in order to compete on the market. However, companies within different industries face different challenges with digital service development. This study has been conducted because there are little known about the opportunities and the challenges different industries faces with a globalized market. Our research question is what the challenges are and what opportunities does strategic digital service development entails for companies.

In this thesis the pragmatic pedagogy as formulatad by John Dewey is applied to theswedish national campaign Digidel and its work to spread the digital participation among thegeneral public. The purpose of the thesis is to visualize and problematize that differentunderstandings of a problem, lead to different solutions, as lifted in John Dewey´s pedagogy, thatconstitutes the thesis' theoretical framework. The term digital participation is used by the Digidelcampaign, where public libraries take active part to spread digital participation througheducational efforts. By qualitative interviews with four librarians this thesis examines howunderstandings of the term may vary and in turn lead to differenent educational goals, designsand executions. The result shows that basic computer- and Internetskills are seen as either equelto or prerequisites for digital participation and that the digital participant is seen as either apassive recipient or an active participant.

ICT and digital artifacts is an important resource in the society, especially in schools. That is why we have chosen to study if and how teachers uses ICT and other digital technology in their education in the history subject. We think that both subjects are important because history is a subject that has to do with the past, the present and the future.We made qualitative interviews with seven teachers from three different schools. We have analyzed if the teachers sees ICT as a burden or a resource in their education and also in which extend they have digital literacy. We have chosen to discuss different authors view on ICT in the education and digital literacy.

The purpose of this thesis was to investigate if Swedish agencies preserve their websites according to the Swedish archival legislations and guidelines. As a theory the OAIS Reference Model (Open Archival Information System, developed by US Consultative Committee for Space Data Systems, CCSDS) has been used as a model to show how important it is to develop strategies for public digital information which has to be preserved for long term. The ingest function in the OAIS Reference Model demands that files are prepared for long term preservation and requires that the digital information fulfils established technical requirements.In the study the Swedish National Archive and their advices about preserving websites to archivists on the Swedish agencies are being studied. To control if the agencies meet the requirements for their management and preservation of their websites a survey was sent out to investigate if Swedish agencies preserve their websites. According to the survey result, 84 of 113 agencies preserve their websites in some way. If the technical requirements really was met could not be verified in this thesis, the results was relied on the responses from the authorities.

This is a study about how different digital instruments can be used in education for pupils with autism and intellectual disability. The questions formulated to research this chosen area was: ?What does teachers think about digital instruments and interactive teaching materials when it comes to benefits and disadvantages in the classroom?, ?In what ways is digital instruments used as teaching materials in the specific school context? and ?From a perspective of teaching and learning, what kind of problems and opportunities can be gained from using digital instruments and teaching materials?. To gather this information interviews was done with three specialist pedagogues working with the chosen group of pupils at three different schools. The material shows that the specialist pedagogues have positive attitudes towards working with digital instruments in this specific group of students..

This is a study about how different digital instruments can be used in education for pupils with autism and intellectual disability. The questions formulated to research this chosen area was: ?What does teachers think about digital instruments and interactive teaching materials when it comes to benefits and disadvantages in the classroom?, ?In what ways is digital instruments used as teaching materials in the specific school context? and ?From a perspective of teaching and learning, what kind of problems and opportunities can be gained from using digital instruments and teaching materials?. To gather this information interviews was done with three specialist pedagogues working with the chosen group of pupils at three different schools. The material shows that the specialist pedagogues have positive attitudes towards working with digital instruments in this specific group of students..