In today's use of digital services, we seamlessly perform lots of microinteractions. Mostly without noticing them. When analysing what's good or bad in interaction with digital services, it is common to focus only on the big functions and it is easy for the small, effective moments in a microinteraction to be overlooked. This study takes a closer look at the microinteractions found in digital applications. Specifically, user-triggered microinteractions. The purpose of the study is to gain a broader understanding of how these microinteractions are designed to affect the user experience and what emotions may arise during the encounter with a service by studying the hedonic and pragmatic qualities that can be found in service's microinteractions. In the study, we performed a systematic heuristic analysis of 60 microinteractions, selected from the Google Play Store's top list, where the microinteractions were assessed individually by the study's two authors using an analysis tool developed for the study. The results show that the most common hedonic qualities in design of microinteractions today meet the needs of autonomy, security and luxury. To fulfill these needs, the study shows a link between metaphorical design and a sense of security, minimalist design and luxury, as well as clear communication and autonomy. The three most common pragmatic qualities are consistency, recognition and metaphor, where the connections between design and quality are shown to be metaphorical design and consistency, as well as the location of the trigger and recognition.

In recent years, the evolution of interactive technologies has taken a turn where the importance of user experience and satisfaction has become the center of attention. This research explores the relationship between the smallest interactive details in a digital design, and the user experience of it. The thesis focuses on understanding what factors, regarding the micro-interaction’s feedback, that affect the user experience and how these factors can later be used to effectively design micro- interactions. Micro-interactions are defined as small interactive details that respond to user interaction. The feedback of a micro-interaction is what visualizes that response to the user. Little research has been done on the feedback of micro- interactions and therefore this study aims to investigate the feedback’s capacity to influence the user experience of a digital interface.  The method of this study is of qualitative character and relies on triangulation where three different types of data were combined to increase the validity of the results. The 22 respondents participating in this study each answered 10 interview questions, 21 survey questions, and were observed while interacting with two different prototypes - one neutral and one with manipulated micro-interactions. The findings indicate that the feedback of micro-interactions strongly influences the user experience of a digital interface. These findings, combined with relevant research of this area, served as the academic foundation on which design factors were produced, and the research question was answered.