This research represents an investigation into user acceptance of computer systems. It starts with the premise that existing systems do not fully meet user requirements, and are therefore rejected as 'difficult to use'. Various problems and influences affecting user acceptance are identified, and improvements are suggested. Although a broad range of factors affecting user acceptance are discussed, emphasis is given to the impact of actual computer software. Initially, both general and specific user interface software influences are examined, and it is shown how these needs can be met using new software technology. A new Intelligent Interface architecture model is presented, and comparisons are made to existing interface design approaches. Secondly, the role of empirical work within the field of Human Computer Interaction is highlighted. An investigation into the usability and user. acceptance of a large working library database system is described, and the results discussed. The role of Systems Analysis and Design and its effect upon user acceptance is also explored. It is argued that despite improvements in interface technology and related software engineering techniques, a software application is also a product of the Systems Analysis and Design process. Traditional Systems Design approaches are examined, and suitable improvements suggested based upon experience with emerging separable software architectures. Thirdly, the research proceeds to examine the potential of Quantitative User Modelling, and describes the implementation of an example object oriented Quantitative User Model. This is then evaluated in order to determine new knowledge, concerning the major issues surrounding the potential application of user modelling to interface design. Finally, attention is given to the concept of interface and application separation. An object oriented User Interface Management System is presented, and its implementation in the Smalltalk 80 programming language discussed. The proposed User Interface Management System utilises a new software architecture which provides explicit user interface separation, using the concept of a Pluggable View Controller. It also incorporates an integrated design Tool-set for Direct Manipulation interfaces. The proposed User Interface Management System and software architecture represents the major contribution of this project to the growing body of Human Computer Interaction research. In particular, the importance of explicit interface separation is established, and the proposed software architecture is critically evaluated to determine new knowledge concerning the requirements, constraints, and potential of proper user interface separation. The implementation of an object oriented Part Hierarchy mechanism is also presented. This mechanism is related to the proposed User Interface Management System, and is critically evaluated in order to add to the body of knowledge concerning object oriented systems.

Paper 1 - Consultation is a widely used model of practice amongst Educational Psychology Services (EPS) in the United Kingdom (UK) as evidenced in the amount of research carried out on this practice (Leadbetter, 2006, p. 246). This paper attempts to supplement the limited evidence on how and why consultation is used. This paper provides an account of Educational Psychologists (EPs) perceptions of using consultation in a Welsh Educational Psychology Service (EPS). The study uses a thematic analysis of interviews with EPs and 3 accounts of the practice of consultation are provided as examples of how consultation is used. Data analysis revealed that EPs’ practice is dominated by the influence of Wagner’s model of consultation, which is a result of both university, and service based training and not because they feel it is necessarily the best way of working and were vague about their reasons for using this approach. Evidence emerged to suggest EPs were only aware of one model of consultation, which is the Wagner model. Evidence also emerged to suggest that EPs confused service delivery models with models of consultation and that EPs are unclear about their unique skills and role when using consultation and feel that schools do not understand the work they are trying to achieve when working in this way. EPs also considered that schools want more time with them, but burdensome bureaucracy hinders this. These findings are discussed in more detail at the end of Paper 2 where the overall findings suggest there is a systemic problem in Pantysgawn EPS, where the dominance of the EP role to provide statutory assessments prevents EPs from working in a truly consultative way. The paper ends by discussing the key element of the EP’s role, whether a consistent and rigid adherence to one practice model is practicable or desirable, and the various ways that EP services can monitor outcomes to alleviate some of the bureaucratic processes. Paper 2 - Paper 1 of this study looked at EPs’ perceptions of using consultation. Very few studies have looked at service users experiences in consultation based EP services. Paper 2 therefore looks at schools’ perceptions of the EP service and considers the benefits and barriers to effective service delivery using a thematic analysis of interviews with staff from 5 primary and 3 secondary schools. Findings suggest that schools continue to regard the expertise of the EP as being a provider of individual assessments, but they also revealed an awareness of the wider systemic role that EPs can provide. This traditional view of the role of the EP is discussed in terms of a wider systemic pressure for schools to seek this kind of EP intervention due to the Local Authority’s (LA) focus on statutory assessments. Schools appreciated a greater continuity of EPS staff as this helped them to develop more productive working relationships and they wanted more time with the EP. The findings suggest that the level of bureaucracy and the statutory assessment requirements to gain access to targeted resources were a barrier to working more effectively with schools. The paper ends by integrating these findings with the paper 1 findings and discussing the key element of the EP’s role, whether a consistent and rigid adherence to one practice model is practicable or desirable, and the various ways that EP services can monitor outcomes to alleviate some of the bureaucratic processes.

This thesis focuses on the use of interpreters in Swedish healthcare. The overall aim was to explore how individuals, healthcare professionals and family members experience and perceive the use of interpreters in healthcare. The study design was explorative and descriptive. The thesis included Serbo-Croatian(Bosnian/Croatian/Serbian)speaking individuals(n=17), healthcare professionals(n=24), official documents(n=60)and family members(n=10)of individuals using interpreters in healthcare. Individual interviews, written descriptions, review of official documents in the form of incident reports from a single case study and focus group interviews were used to collect data. Data were analyzed using phenomenography, qualitative content analysis and qualitative data analysis of focus group interviews. The overall finding from all perspectives was the wish to have a qualified interpreter whose role was as a communication aid but also as a practical and informative guide in healthcare. The perception of a qualified interpreter was someone highly skilled in medical terminology, Swedish and individuals’ native language with ability to adapt to different dialects, wearing non-provocative and neutral clothes, of the same gender, with a professional attitude and preferably in personal contact through face-to-face interaction. Besides being a communication aid, the interpreter was perceived as having an important role in helping individuals to find the right way to and within the healthcare system because foreign-born individuals were unable to understand information in healthcare. Another aspect was to have a well-developed organization with good cooperation between the parties involved in the interpretation situation, such as patients, interpreter, interpreter agency, family members and healthcare professionals to offer a good interpretation situation. In conclusion, the use of an interpreter was determined by individual and healthcare situational factors. Individualized holistic healthcare can be achieved by offering and using high-quality interpreters and cooperation within a well-developed interpreter organization.   Keywords: communication, healthcare service, patient-safe quality care, qualitative data collection, qualitative data analysis, users’ perceptions/experiences, utilization of interpreters.

It is essential to consider what new technologies mean to the people who use them and the ways in which they are experienced and used. In the context of public transit services in Saskatoon, understanding what the recent changes from a manual to an electronic/automated system means to users and the broader community is critically important to the overall assessment of the service. Investigating users’ lived experiences and interpretations of technical artifacts is valuable to understanding socio-technical relations or the embodied interactions of humans and machines as “technologies-in-practice.” Research into socio-technical relations has primarily focused on large scale technological systems and expert practices while less attention has been paid to “seemingly mundane” technologies or technical artifacts routinely used in everyday life. At the same time, this preoccupation has overshadowed or downplayed the importance of exploring users’ experiences and interpretations of technologies. The goal of this research is to contribute to the sociological understanding of mundane technologies-in-practice and socio-technical relations more broadly. In order to gain insight into this relationship, this thesis focuses on bus riders’ (users) and the community’s perceptions of the Go-Pass smartcard and electronic fare system used by the public transit service in Saskatoon. The perspectives of Go-Pass users and community stakeholders (n=15) were investigated using qualitative semi-structured interviews to gain deeper understanding into the complex relationship between users and technologies. Drawing from Science and Technology Studies (STS) and the sociology of technology literature, I propose that a sociomaterial theoretical perspective following a mutual shaping framework offers insight into socio-technical relations. Both critical and feminist technology studies literature has been helpful for developing an understanding of the wider social and political contexts of technical use which underscores this study. In particular, the conceptual insights of “socio-technical assemblages” (Suchman, 2007) and “intra-action” (Barad, 2003) have been helpful tools for exploring agency, subjectivity and power which is key to uncovering the intricacies of socio-technical relations and human-machine interaction. The four main themes emerging from this study were: 1) shifting human-machine roles and relationships; 2) the socio-technical construction of the bus rider; 3) configuring users’ and technologies; and 4) structural issues and social justice implications of technologies-in-practice. The findings demonstrate that the use of this new system is mutually co-constructed by both social and technical factors whereby both the users and the technology inform perceptions and use. There was also the unexpected connection between users’ everyday situated uses, experiences and interpretations of the Go-Pass technologies to wider social-political contexts. There were a number of issues raised in relation to the implementation of the Go-Pass system which had negative effects or unintended social and technical consequences particularly for those most marginalized economically. At the same time, there were important benefits and positive effects on riders’ quality of life and use of the service. Finally, participants’ perspectives have contributed to understanding what the Go-Pass technologies mean to them, the ways in which they are used in practice and the ways in which the mixing of people and seemingly mundane technologies shape relations in everyday settings.