The relational database model was defined in the 1970?s and is the dominating database type today.  The main difference between data from a relational database and a hierarchical data structure is that the relational database stores records in tables. The records have no particular order, but can include links in terms of relationships with other records. A hierarchical structure organizes data in the form of a tree structure  and  can for an example be found in organizational structures in which different levels involves different responsibilities. If the data stored in a relational database is to be presented in a hierarchically, a conversion of the data structure is required. The intention of this paper is to describe how such a conversion can be performed.  To investigate the conversion methods, case studies has been conducted on the basis of a specific organization?s hierarchical structure.

In this study it was investigated if the adoption of a new routine for quality control could improve the precision of the dimension measurement obtained by harvesters. Data was collected from three different harvesters. First, a reference data set was collected before the new procedures had been incorporated, and then when the new methodology was implemented another data set was collected by the harvester operators, allowing the two data set to be compered. The results indicated that following the implementation of the new procedures, the reliability and the precision of the measurements has increased. All harvesters included in the study had improved regarding most of the controlled factors such as standard deviation, systematic difference and hit rate within ± 2 cm for length and ± 4 mm for diameter..

Theory of mind involves the ability to take another person?s perspective in thought, emotions and intentions.  There is today a lack of instruments to assess children?s development of Theory of Mind (ToM) in Swedish. ToM is considered by many scientists to be the basis for development of pragmatic competence. The relationship between these two abilities is complex and not fully resolved. Both abilities are important components for the development of social skills.    The purpose of this study was to compare 4 and 5-year olds ToM-ability measured with a Swedish version of Wellman and Liu?s ToM-scale, Sally Anne and Social Emotional Test with estimated pragmatic competence measured with the Children?s Communication Checklist (CCC).

In this study, we examine the presence and consequences of CEO overconfidence in the Swedish market. We identify overconfidence with two insider-trading based measures and find that overconfidence is apparent among one third of CEOs in companies listed on the Swedish stock market. We also find that these CEOs are more prone to carry out acquisitions, as the probability of conducting an acquisition increases by 27 % if the CEO is overconfident. However, we do not find evidence that acquisitions by overconfident CEOs are more value-destroying. This finding contradicts results from previous studies conducted on Anglo-Saxon markets that suggest that overconfidence has a negative impact on the value-creation in acquisitions.

This Master of Science thesis project handles issues around managing data from the digital tachographsystem. European legislation states that companies must download the data of the digital tachograph systemand store it for at least one year for control purposes. The system stores data on the vehicle unit located inthe driving compartment and on smart cards personal for each driver.Acquiring data from the previous analogue tachograph was done instantaneously since the data wasphysically printed to a circular paper chart when driving. To acquire data from the digital system one mustperform a download from the vehicle unit and later transfer it to some form of backup solution for longterm storage. Data must also be downloaded from the driver smart cards.Download of data from the vehicle unit is the most time consuming task and may take up to 30minutes pervehicle.

AbstractAuthors: Carolina Magnusson and Johanna MagnussonTitle:  The balance between research and practice. A study of family therapist?s knowledge retrieval and the application of evidence-based practice.Supervisor: Jan Petersson Assessor: Peter HultgrenDuring our research we discovered that a very small amount of research had been conducted about the effect of the social services. It inspired us to fulfill this study. The aim of the study is to describe and analyze what knowledge family therapists in two Swedish municipalities use in family therapy work.

Learning words have shown to be a very crucial part of learning a second language and the one most important factor to make pupils with Swedish as a second language succeed in school. To make sure that all pupils get the right conditions to learn from all subjects and their entire content a wide vocabulary is necessary. Even so it is found that there are shortcomings regarding this kind of teaching in Swedish schools.Through interviews and observations of two teachers that teach pupils with Swedish as a second language, and also with a short reading test for the pupils, the possible strategies that these teachers use for learning words have been studied. The result shows that the teachers are using several strategies and that they are actively working with transmitting these to the pupils, but there are some areas that need developing..

Customer Relationship Management (CRM) är ett ofta använt konceptför verksamheter att hantera sina kundkontakter. En viktig del av CRMär användningen av tekniska lösningar för att lagra och analysera informationom kunder, till exempel genom data mining för att upptäckamönster hos kunders beteende. Idag produceras allt större mängderdata genom människors användning av informations- och kommunikationsteknik.Traditionell teknik klarar ej av att hantera den variation ochmängd data som existerar, vilket lett till utvecklingen av nya tekniskalösningar för dessa uppgifter. Begreppet Big data brukar användas föratt beskriva stora datamängder. Syftet med denna studie har varit att geökad förståelse för hur Big data kan användas inom CRM.

This thesis examines the established theories on the phenomena of merger of equals. In contrast to an acquisition, a merger of equals is complex since the very nature of it entails that none of the involved parties are in control. Merger of equals are therefore viewed as one of the most difficult types of partnership and data show that over fourty percent of all mergers fail to achieve their targets. Still, research on the phenomena is limited. The main purpose of this thesis is to analyse the implicit factors to why a merger of equals fail.

The phenomenon of social gaming is essentially an IT-service that people worldwideuses on a daily basis. This particular market is also young and generates tremendousamounts of data, which, from a data managing perspective, makes it naturallyinteresting. Throughout this thesis the social gaming market is described from the datamanaging and different actors perspectives. This is done by using literature reviewing,interviews with companies and analysis based on that information. The thesis initiallypresents important and central terms as well as different techniques.

The purpose of this study was to investigate produced laser data from the new national height model's airborne laser scanning in Sweden, what quality it has and whether it can be used for forest management planning. From airborne laser scanning one can obtain information on forest variables such as tree species, height, diameter and basal area. Norra skogsägarna is the principal employer of this project and they wanted know to the quality of the laser data which needs to cope with their standards. If the laser data the quality required it can replace some of the operations performed by field planners. To examine the quality of the produced laser data a control tax assessment has been performed in 30 forest departments. This was done in an objective manner.

Eftersom så många organisationer och företag använder sig av data warehouses idag kan inte innehavet av data warehouses räknas som ett strategiskt övertag, utan en strategisk nödvändighet för företagen eller organisationerna. Att införa ett data warehouse kräver dock stort engagemang från alla inblandade i projektet och ett misslyckande kostar företaget mycket resurser och kapital.Detta arbete undersöker vilka faktorer som främst bidrar till att ett data warehousingprojekt misslyckas. En litteraturstudie genomförs där misslyckade fall samt litteratur som beskriver författares generella uppfattningar angående faktorer med potentiell risk att orsaka ett misslyckat data warehousingprojekt undersöks. Undersökningen leder fram till en lista med faktorer som anses ha stor potential att orsaka ett misslyckande. Att identifera dessa faktorer bidrar till att organisationer och företag får möjligheten att i ett tidigt skede av projektet förhindra att dessa uppstår, vilket kan spara stora ekonomiska resurser..

The disconnect between assumptions regarding computer users interactions made by software engineers and the actual interactions do, for various reasons, not always match. Gathering actual usage data from user interfaces can enable software designers to make better educated decisions. By buildning a prototype for collecting such data from a diagnosis tool for the automotive industry this project has shown not only how to benefit from the data but also how to perform the work. The data is 1 600 sessions consisting of 26 000 individual events. From this it has shown that available tools can assist in rudimentary questions regarding usage.

Abstract: In this Master's thesis our aim is to study the situation and process regarding the decision to use outsourcing of the media acquisition function in a Swedish public library. By using New institutional theory, focusing on ways of organising and values in the organisation we are able to analyse this phenomenon. Skot-Hansens theory about three different culture political argumentation schemes, humanistic, sociological and instrumental (or market oriented), gives us the opportunity to place statements and facts into a functional theoretical context. The market oriented scheme is further clarified with the concept of New Public Management. The role of values in the institution, regarding aims and goals is stressed.

Det finns många olika Data Mining-processer som kan tillämpas i ett Data Mining-projekt. Fördelen med att använda en Data Mining-process är att projektet blir strukturerat, processen kan hjälpa till att minska risker som annars kan uppstå och kan medföra att projektmålet förändras. Data Mining-processen som studien har undersökt är generell och studien försöker därmed precisera olika faser av processen, för att anpassas till ett prognostiseringsprojekt.Studien utvärderar den preciserade prognostiseringsprocessen genom att följa och dokumentera ett prognostiseringsprojekt på en tillverkningsindustri. Studien analyserar teoretiskt vilka implikationer tillverkningsindustrin kan möta och även om studiens framtagna process är tillämpningsbar i detta fall. Studien visar att det på en teoretisk nivå går att genomföra studiens preciserade Data Mining-process och visar även vilka risker som kan uppkomma om ett prognostiseringsprojekt inte följer en Data Mining-process..