Construction of UEQ+ scales for voice quality: measuring user experience quality of voice interaction

The UEQ+ is a modular framework for the construction of UX questionnaires. The researcher can pick those scales that fit his or her research question from a list of 16 available UX scales. Currently, no UEQ+ scales are available to allow measuring the quality of voice interactions. Given that this type of interaction is increasingly essential for the usage of digital products, this is a severe limitation of the possible products and usage scenarios that can be evaluated using the UEQ+. We describe in this paper the construction of three specific scales to measure the UX of voice interactions. Besides, we discuss how these new scales can be combined with existing UEQ+ scales in evaluation projects

Design and Validation of a Framework for the Creation of User Experience Questionnaires

Existing user experience questionnaires have a fixed number of scales. Each of these scales measures a distinct aspect of user experience. These questionnaires can be used with little effort and provide a number of useful support materials that make the application of such a questionnaire quite easy. However, in practical evaluation scenarios it can happen that none of the existing questionnaires contains all scales necessary to answer the research question. It is of course possible to combine several UX questionnaires in such cases, but due to the variations of item formats this is also not an optimal solution. In this paper, we describe the development and first validation studies of a modular framework that allows the creation of user experience questionnaires that fit perfectly to a given research question. The framework contains several scales that measure different UX aspects. These scales can be combined to cover the relevant research questions

Usability and user experience evaluation model for investigating coordinated assistive technologies with blind and visually impaired

Abstract. The objective of this thesis is to examine how should usability and user experience of a cooperative assistive technology for blind and visually impaired be evaluated in a field setting. The target system in this study was developed by a doctoral student, who was also responsible for conducting an experiment in Pakistan. It is important to evaluate assistive technology for visually impaired because of poor adoption rates, while the number of visually impaired people needing them is going to increase. The research includes literature review on development of assistive technologies, and existing usability and user experience methods. Theory is supported with qualitative and quantitative methods. Discussions with three experts in Finland were held and analysed. An experiment for eleven blind and visually impaired people was conducted in Pakistan. This included interviews, analysed observations, and a validation of a user experience questionnaire, meCUE 2.0. Discussions with the research team and consultations from usability and user experience experts were used to assess the results of the research and to develop an evaluation model suitable for the prototype system in specified setting. The first main finding of this thesis is the developed model called UUXCAT for VIP. It can be used to evaluate cooperative assistive technology in a field setting. Development of the model was an iterative process and is based on synthesis of existing methods and available research. The second main finding is the extended contexts questionnaire. New contexts add dimensions that were missing from other methods. These contexts are trust and confidence, social, physical, and culture, and are relevant to visually impaired and the cooperative aspect of the system. The study is limited by Covid-19 as the planned experiment in Finland was not carried out that could further validate the model