The following thesis analyses the form and importance of extreme case formulations based on more than 10 research interviews. Extreme case formulations, i.e. formulations comprising expressions such as "nothing", "everything" or "noone", which present a phenomenon or a circumstance according to its minimal or maximal properties, can constitute a complication in the analysis of research interviews. This thesis expand the existing hypothesis of extreme case formulations by adding new findings, for example the bipolarity of extreme case formulations. In the analysed data, these do often occur together with different clasifiers, which either weaken (softeners) or strengthen (intensifiers) their extreme force. At the same time the following thesis broadens the research of extreme case formulations of interdisciplinary approach, which uses the findings from psychology and rhetoric. The conducted research is furthermore completed with the acoustic analysis of semantically extreme formulations, whose results show that extreme case formulations often tend to be acoustically emphasized. Keywords: extreme case formulation, conversation analysis, discourse analysis, interview, Czech

The purpose of this thesis is to contribute to New Product Development-literature by expanding the analysis of the R&D-manufacturing interface in complex product development in three areas, i.e. the outsourcing of manufacturing, uncertainty and time-criticality, and field service. The thesis focuses on interface challenges and solutions which concern three questions: How does the level of outsourcing of manufacturing affect the management of the R&Dmanufacturing interface in complex product development? How does the presence of uncertainty and time-criticality affect the management of the R&Dmanufacturing interface in complex product development? How does the need to consider field service requirements affect the management of the R&Dmanufacturing interface in complex product development? The background and point of departure is the realization that there are three areas which influence the management of the important, dynamic interface between R&D and manufacturing. First, the level of outsourcing of manufacturing is increasing in many industries, which makes it even more demanding to manage the R&D-manufacturing interface in complex product development. Second, complex product development may also be characterized by uncertainty and time-criticality, and previous research indicates that these factors need to be handled differently. Third, it is increasingly important to consider not only R&D and manufacturing, but also field service requirements. The research methodology rests on a multiple case study approach where the main case used in this thesis is an extreme case in terms of uncertainty, R&D intensity and volume levels, i.e. Micronic Laser Systems. The main findings of the thesis revolve around the identification of the challenges and solutions involved in complex product development. Based on five research papers, the thesis identifies challenges associated with each of the three research questions, and all challenges identified revolve around how to identify and understand conflicting requirements, to establish an understanding of changing prerequisites and their implications, and to ensure active involvement and a certain degree of competence overlap between organizational functions (internal as well as external). The solutions identified for handling these challenges have one thing in common, namely a focus on achieving controlled responsiveness and flexibility based on an understanding of tradeoffs, interaction, and informed decision-making. These solutions differ from those prescribed in conventional product development literature which tends to focus on upfront planning techniques and how to follow plans. The findings may be of value to a variety of managers in different environments, in particular for project managers who are involved in complex product development. The main reason is that this kind of product development exhibits challenges and solutions different from those described in conventional literature on new product development, at least in cases where there is some degree of uncertainty.

This exploratory case study was undertaken to obtain a greater understanding of the difficulties that physics students face when solving image-object projections in optics problems. This was carried out by studying the students’ reasoning when facing new kinds of problem settings using the refraction of light and the position of the virtual image and the real object as the frame for the research. The results show that there is more than one reasoning possibility that is feasible for students to use when dealing with the same problem. The results also illustrate how several different ways of reasoning may be simultaneously needed to solve a refraction problem. The different kinds of reasoning have been referred to as reasoning categories in this study. The analysis illustrates how the categories complement each other, and the use of many reasoning categories is shown to be fruitful. However, the vast majority of the participants made contradicting answer selections when solving similar problems by using contradicting reasoning approaches. This lack of consistency in the participants’ reasoning could indicate that they have a fragmentary understanding of optics in general. Both the capability to link reasoning approaches together, as well as the affordances that different modes of representations offer, are needed for the construction of a better conceptual understanding. Only mastering a few ways of reasoning and a few modes of representation could lead to fragmented knowledge, which, in turn leads to making problem solving really challenging. One purpose of this study was to find out if reasoning categories and modes of representations are essentially linked. If so, then the reasoning categories would be determined by the representation of the problem. The analysis shows that there is a connection, but that there are also other factors at play.