While there is a lot of research about other aspects of game design, there are fairly few studies about music and sound in video games. Since music and sound are components of next to all games, it is interesting to investigate how this aspect affects the perceived immersion of gamers. The aim of this study is to investigate how sound and music affect player sense of presence in a video game, Transistor [19], which was chosen due to its distinct and strongly emotional music and sound. Five video prototypes were made using gameplay and sound from the game. The videos presented different variations of the soundscape. These were tested by a web survey with questions from the PENS questionnaire [15], providing the users a seven point Likert scale by which they could rate their experience. The answers were analyzed with a mixed model regression and compared with an estimated image of which degree of immersion would be experience for each of the videos. The result of the study showed that the complete soundscape was significantly more immersive than all the other soundscapes, while silence was significantly less immersive than the other soundscapes. The conclusions were the more complete the soundscape is, the more immersive it is, and that even a small part of the total soundscape is more immersive than complete silence.

Content Management Systems (CMS) can support the creation and maintenance of an e-commerce website and its content. Together with the advance of mobile technology and Internet, it is now possible for business owners to manage their online store using their mobile touchscreen devices. This thesis aims to define the usability problems of the existing CMSs when they are used on mobile touchscreen devices. Heuristic evaluation was performed in three CMSs in order to gain a better understanding of how CMS on touchscreen works and what are the major issues that could downgrade usability. Based on the results of the evaluation, a prototype was implemented and evaluated in order to find out if the design characteristics of the prototype can enhance usability. The impact of the prototype is discussed in terms of efficiency and heuristics violations. Moreover, design guidelines are suggested and uncovered usability problems for further research are provided. / Innehållshanteringssystem (från engelskans Content Management System, CMS) kan stödja skapandet ochunderhållet av en e-handelswebbplats och dess innehåll. Utvecklingen av mobilteknik och internet har gjort detmöjligt för företagare att hantera sin webbutik med hjälp av sina mobila enheter. Denna studie syftar till attdefiniera användbarhetsproblemen hos befintliga CMS när de används på mobila enheter. En heuristiskutvärdering av tre CMS utfördes för att få en bättre förståelse av hur CMS fungerar på en pekskärm, samt för attidentifiera de största problem som kan minska användbarheten. Baserat på resultaten av utvärderingenutvecklades och utvärderades en prototyp för att ta reda på om prototypens designegenskaper kunde förbättraanvändbarheten. Prototypens inverkan diskuteras med avseende på effektivitet och heuristiska oegentligheter. Designriktlinjer föreslås och funna användbarhetsproblem presenteras för vidare forskning.