Search on video streaming services is significantly different from web search engines and traditional information retrieval systems. Although an internal site search function’s primary purpose is similar to a web search engine’s, the user’s needs differ, which calls for a different design approach regarding the search result. Many previous researchers have investigated the algorithms behind search functions. However, there is a lack of studies related to the user experience of a search's user interface within the video streaming industry. This study investigates how different presentations of search results affect the users to complete a search on web-based video streaming services. The study was done in collaboration with SVT, examining their video streaming service SVT Play. The research aimed to answer three research questions based on the official usability standard ISO 9241–11. A prototype was designed from a state-of-the-art analysis and the findings from three focus group interviews. An A/B test was conducted on the developed prototype, comparing it against the original search function live on SVT Play, including 46 860 test users. A complementary user test with 10 participants was done in addition to the A/B test. The findings from the A/B test did not show any significant difference between the prototypes. It highlighted that users’ search goals are strong enough not to let the layout and design affect their choice, hence the overall click-through rates. However, the user test showed that the new prototype was, in general, easier to use. It also showed that the different prototypes suited different search goals. The participants expressed a wish to have a solution that combines the design elements from the two prototypes. / Sökfunktionen på videostreamingtjänster skiljer sig från webbsökmotorer och traditionella informationssökningssystem. Även om det primära syftet av en sökfunktion på en intern webbplats liknar webbsökmotorns, så skiljer sig användarens behov vilket därav kräver en annan designmetod. Många tidigare forskare har undersökt algoritmerna bakom sökfunktioner. Dock saknas studier relaterade till användarupplevelsen av sökets gränssnitt inom videostreaming industrin. Denna studie undersöker hur olika presentationer av sökresultatet påverkar användarna för att slutföra en sökning på en webbaserad videostreamingtjänst. Studien gjordes i samarbete med SVT och därav utgick undersökningen från deras videostreamingtjänst SVT Play. Uppsatsen syftade till att svara på tre forskningsfrågor utformade efter den officiella användbarhetsstandarden ISO 9241–11. En prototyp togs fram baserad på en toppmodern analys och resultat från fokusgruppsintervjuer. Ett A/B test med 46 860 testanvändare utfördes med syfte att jämföra den framtagna prototypen med den ursprungliga sökfunktionen på SVT Play. Ett kompletterande användartest med tio deltagare gjordes utöver A/B testet. Resultaten från A/B testet visade ingen signifikant skillnad mellan prototyperna. Det framhöll att användarnas sökmål är tillräckligt starka för att layout och design ska påverka deras val och därav den totala klickfrekvensen. Användartestet visade att den nya prototypen generellt var lättare att använda. Studien visade också att de olika prototyperna passade olika sökmål. Deltagarna uttryckte en önskan om en lösning som kombinerar designelement från de två olika prototyperna.

Children’s use of digital technologies is rapidly increasing, with caregivers reporting that children spend more time on their devices than engaging in exercise, reading books, or socializing (Christofferson & Karlsson, 2023). The shift in children’s behavior has caregivers and organizations debating the risks and seeking ways to protect children. This study aims to promote a healthy lifestyle for children aged 7 to 11 through digital technologies by designing a proposal for a video streaming service interface, specifically Telia Play Kids. The study uses the digital diet approach by Orben (2022) and research on child-computer interaction to understand the technology’s impact on children. The research questions aim to identify which aspects of children’s digital lives need to be considered and to determine which design features need to be prioritized when designing a video streaming service interface. The study was conducted through a research through design process where the target group’s needs were investigated through interviews, findings were elaborated upon into concepts, and a prototype was designed. The findings indicated the importance of understanding which factors influence children’s digital lives, being aware of the consequences of the digital life, and which design improvements were needed to accommodate both children and caregivers. Design features prioritized in the final prototype included supporting visual perception, children’s cognition, language, and interests in addition to experiences focusing on the child’s well-being and caregiver’s needs. The study concludes that children’s digital lives are complex, highlighting the need to adapt video streaming services and other digital technologies through dialogue with children and caregivers but also through research on child-computer interaction.