Master of Science / Department of Computing and Information Sciences / David A. Gustafson / The calculation of reliability based on running test cases refers to the probability of the software not generating faulty output consequent to the testing process. The metric used to measure this reliability is referred in terms of E(Θ) value. The concept of E(Θ) gives precise formulae to calculate the probability of failure of software after testing, debug or operational. This report aims at extending the functionalities of E(Θ) into the realm of multiple faults spread across multiple sub-domains. This generalization involves introduction of a new set of formulae for E(Θ) calculation which can account for faults spread over both single as well as multiple sub-domains in a code. The validity of the formulae is verified by matching the obtained theoretical results against the empirical data generated from running a test case simulator. The report further examines the possibility of an upper bound calculation on the derived formulae and its possible ramifications.

In this paper, we discuss the deficiencies of normal form definitions based on Functional Dependency and introduce a new normal form concept based on Functional Independency. Functional Independency has not been systematically investigated while there is a very strong theoretical foundation for the study of Functional Dependency in relational database normalization. This paper will demonstrate that considering Functional Dependency alone cannot eliminate some common data anomalies and the normalization process can yield better database designs with the addition of Functional Independency.

Att göra webbsidor tillgängliga för olika sorters enheter är ett område som har uppstått i och med smartphonens utveckling. Mängden enheter har under de senaste åren ökat stort och det är inte längre endast laptops och datorer som används. Då enheternas skärmupplösning skiljer sig krävs en anpassning beroende på enhet för att ge en bra användarupplevelse. För att identifiera tillgängliga tekniker har en kvalitativ undersökning genomförts. Undersökningen består av en genomgång av utvald litteratur samt intervjuer med utvecklare på företagen Nethouse och Laget.se utförts. Detta för att inhämta information om användandet av tekniker, undersöka om det finns något framträdande tankesätt samt undersöka för- och nackdelar med teknikerna. Slutsatsen är att alla tekniker har sina användningsområden eftersom de har olika styrkor och svagheter. Resultatet från denna studie presenteras som en genomgång av de befintliga teknikerna och deras potentiella användningsområden för att vägleda valet av teknik. / Making web pages available for different types of devices is an area that has arisen with the development of smartphones. In recent years it has become a major increase in units and there are no longer only laptops and computers that are being used. Since there is a size difference between the different devices there is need for adjustment depending on the device to provide a good user experience. The study was carried out as a qualitative study to identify available technologies. A review of available literature and interviews with developers at the companies Nethouse and Laget.se was conducted to obtain information on the performance of the techniques, if there is any way of thinking and if there is advantages and disadvantages of the techniques. The conclusion is that all technologies have their uses as they have different strengths and weaknesses. The results from this study are presented as a review of the existing technologies and their potential uses to guide the choice of technology.