There are several methods and models within the areas of software engineering on how to proceed during a software development process. For each of these methods and models there are benefits and drawbacks, depending on how you choose to look at them. A difference of principle between the different models is that they either advocate iterative development or not. In parts of software engineering one makes use of different methods depending on which is most fitting in a specific situation. There are several methods on how to recieve more qualitative data from the end-users during the requirement collection, but the reappearing pattern is still user centric participation, which means that the user participates more actively in part of or the entire development process.

I programmeringsvärlden har en ren, enkel och testbar kod en stor betydelse. Detta examensarbete avslöjar ett nytt koncept vilket kanske är den viktigaste upptäckten inom metodområdet på senare tid, så kallade Testdriven utveckling (TDD). Testdriven utveckling är ett sätt att utveckla mjukvara och det som utmärker den är att man först skriver ett test som inte ska fungera (röd fas), sedan skriver man en kod, så enkelt som möjligt, som gör att testet ska fungera (grön fas) och till slut ska man våga göra förändringar även om koden fungerar, om man är inte riktigt nöjd eller om man helt enkelt vill optimera sin kod (omstrukturera fas). Syftet med studien var att utvärdera vilka fördelarna och eventuella nackdelarna är med den här typen av mjukvaruutveckling, att motivera varför det är lämpligt att välja den och att visa hur man gör med hjälp av Java, JUnit och Eclipse. Material som användes i studien insamlades genom litteratursökningen och intervjuer.

This report is the final step in the Bachelor of Science program in Building Construction Engineering, Department of Engineering Sciences, Uppsala University.The purpose of this study is to highlight the difficulties and possibilities that could involve the introduction of new energy efficient technologies and changing work around this technology. This study focuses on energy use at a construction site or other temporary workplace where so-called portacabins are in place to address the need for temporary facilities.The method for obtaining knowledge on the subject was mainly interviews with site managers working in Svevia AB's various activities. In conjunction with the interviews I visited construction sites and portacabins if it was possible.My most important suggestion to Svevia AB concerns a better organization in order to make poratacabins more efficient on energy and costs. The company should also evaluate and monitor the energy efficient portacabins that are in operation.Expected energy savings of new technology may not materialize if there are gaps in information, education, technical services and technical maintenance. It is very important to utilize the experiences of new technology.

In Sweden whenever trains or maintenance workers want access to the railway system, their requests of usage and movements are being supervised, granted and handled by train dispatchers. The profession holds a key role in making the complex railway system work in terms of efficiency, safety and delivering on-time arrivals. This master thesis, delegated by the Swedish Transport Administration, has been carried out at the Division of Human Computer Interaction at Uppsala University and at the train traffic control center in Gävle. The aim has been to map what information the train dispatchers use in order to make safety-related decisions concerning their working goals. And further to describe and analyze how the train dispatchers, visavi their tools and systems in the work domain, gather necessary information.The result indicates a complex, diverse and spread out setting of different programs, procedures and tools that make satisfactory fulfilment of efficiency, safety and punctuality in relation to the time table hard.

The aim of this dissertation is to examine and compare William Easterly?s and PGU?s (Shared Responsibility: Sweden's Policy for Global Development) different views on development and international development cooperation. The methodological approach chosen in this study is an analysis of ideas based on the following questions:1. Which principles should be applied to development and international development cooperation?2.

AbstractThe purpose of this study was to identify problems that may occur in the execution of a civil engineering project and suggest measures to reduce the risk of errors. The study was conducted in cooperation with a civil engineering company in the Gothenburg area. During two weeks in February 2012, a field study took place on two construction sites where disruption and problems that took more than 15 minutes to correct were noted. During the field study we identified 39 such occurrences in the projects and then these were classified into different categories according to their cause.The two largest categories were "Design" and "Planning", which accounted for half of the errors that were discovered.In the study results were evaluated to decide whether it was possible to detect discrepancies at an earlier stage. The cost to fix an error in the design stage may be significantly less than to correct the problem in production.According to the evaluation, 55% of the errors could have been detected earlier if there was a greater degree of observation for such issues by everyone involved in the project.

The theme in this report has been how to benefit experience from accident investigations. The demand on the municipality to perform accidet investigations is relatively new, and maybe they aren?t clear what the demands means. This causes that there might be a problem to benefit experience from accident investigations, for improving the overall safety in the municipality. The main purpose of this report has been to clarify how experience from accident investigations, can be of benefit to society on a local level.

Examensarbetets problemområde återfinns i den tidiga delen inom informationssystemutveckling. Denna utvecklingsfas, kallad Requirements Engineering (RE), innefattar aktiviteter för att förstå, dokumentera och validera de behov och krav som föreligger för ett framtida informationssystem. RE är en avgörande aktivitet i processen att utveckla ett informationssystem som tillfredsställer användare och kunders förväntningar och behov.De olika intressenterna som är involverade i RE-processen har olika roller, bakgrund och kunskaper. Av denna anledning föreligger olika problem och möjligheter med avseende på intressenterna. I examensarbetet utreds vilka dessa möjligheter och problem kan vara.

In this study I have investigated how role playing may change young students´ attitudes and behavior. According to the Swedish National Agency for Education´s governing document, Läroplanen för de frivilliga skolformerna, 1994, the principals at Swedish schools are required to inform students about the risks connected with alcohol and traffic. Scientists bring to our attention the need for emotional information to change attitudes and behaviors. The Historical Wine- and Sprits Museum in Stockholm has arranged a role play that gives emotional information to school students in order to affect their attitudes towards drunk driving. My study is a qualitative examination of this role play.

Inventories of epiphytic lichens on Scots pine (Pinus sylvestris) were conducted at three sites in east central Sweden: along the newly build motorway (Road E4), along the old road (Road 600) and in a reference site, to compare the effects of traffic pollution on lichen diversities. At each site, species richness, lichen mean sensitivity value (MK), air quality index of the forest stand/sample plot (LKI) and nitrogen impact value (N) were calculated and it was tested if there was any difference between the sites. Twenty-four species were observed in total, and Parmeliopsis ambigua and Hypogymnia physodes were the most common species at all sites. At Road E4, fewer lichen species were observed than at the other sites and this might be due to the impact of air pollution. The species richness at Road 600 was similar to that of the reference site, which might be explained by the improved air quality.

The purpose of this report is to study the relationship between the rescue service fire prevention activities and the number of arson fires in schools. An objective of the project is also to investi-gate the need of developing national methods for fire prevention. The results are based on a questionnaire study among 35 fire departments and further interviews with five of them. The results indicate that there is a relationship between the rescue service fire prevention activities and the number of arson fires in schools. The relationship is positive in the sense that arson fires in schools decrease with increasing prevention activities.

For many decades the increase in traffic volume, expansion of highways and infrastructure has lead to an increase of wildlife vehicle collisions which are unfortunately very common in many countries today. They cause great deal of material damage and even kill humans or wildlife. Measures in the form of warning signs, under- and overpasses and fencing have been implemented for a long time with the help of observation by hunters and collisions sites. However this study focuses on the moose?s perspective and the variables that, both spatially and temporally, could have an effect on why and when moose are close to certain types of roads.

Denna rapport handlar om ett examensarbete utfört åt multimediaföretaget Animero. Det är ett litet företag med åtta anställda som jobbar med olika multimediaproduktioner med fokus på webb- och videoproduktion. Problemet för Animero var att det saknades en ordentlig kravspecifikation i projekten och att kunderna brukade utgå ifrån vad de själva tycker om istället för att tänka på dem som ska besöka webbplatsen. Vårt uppdrag blev att utveckla en applikation som ska ta fram underlag till en kravspecifikation vid beställning av webbplatser. Applikationen ska samla in information om kundernas målgrupp, deras företagsidentitet och de funktioner de vill ha med på webbplatsen.

In most software engineering project, users are only involved in the beginning of the project as a help to design the requirements specification but users can be involved after this phase too, but is it effective to do so? With this report we would like to investigate how effective it is to involve users after the requirements specification has been written and approved. To find out how effective it is to involve the users we try some fast and simple involvement techniques on a quite far gone project. These techniques include ethnographic studies, prototypes and surveys. We also interviewed a couple of people who work with usability and finally delivered a report with our results to them to find out if they found our result relevant.

The aim of this study is to evaluate whether the value of occupant load is over or under estimated when the Swedish general value for department stores, 0,5 person/m2, is used for dimensioning shopping centers. The data that was analyzed derives from seven shopping centers and one department store. A conservative method was used to calculate the occupant load factor. The analysis shows that two groups can be discerned: one group that is characterized by a lower occupant load factor that does not exceed 0,3 person/m2, and one group with a higher occupant load factor. Shopping centers with a higher occupant load factor are located centrally in large urban areas.