This research examines on the importance of considering context as design criteria for technology integration and technology design, and in particular, what that means for teacher education. While others (Fishman, Marx, Blumenfeld, Krajcik, & Soloway, 2004) have broadly considered context as a factor in supporting technology integration, this current research uses a Human-Tech framework (Vicente, 2003) to identify and examine the implications of individual contextual constraints for the design of technology-enhanced learning; therefore, the researcher begins to answer the important - and arguably unexplored - question of how the complexities of varying contexts ought to be used to inform design. Broadly, this design research study explores the impact of using a Human-Tech framework for understanding technology integration in education and specifically, to inform the design of technology-enhanced learning practices in the context of teacher education. Further, the research reports on the impact of an open online research support forum - designed using a Human-Tech framework - on the experiences of teacher candidates while carrying out classroom-based research as part of their initial teacher education program. Overall, results of the research study suggest that using a Human-Tech framework for understanding technology integration was helpful in supporting a broader and more systematic approach to designing for more effective use of technology in the context of teacher education. In terms of the design of the open online research support forum, findings suggest that there were key Organizational constraints that likely continued to have a limiting impact on the innovations across the two-year design study. Therefore, this research also points to future technology-specific and non technology-specific design strategies which may have implications for technology integration, and fulfilling the functional purposes of the program more broadly.

New social networking and social web tools are becoming available and are easing the process of customizing online social environments. With these developments in technology, core design efforts are being extended beyond usability for individual users and beginning to include notions of sociability for the engagement of communities of users. This thesis is an investigation of these developments. It is guided by the principal research question: how do you design for social engagement in an online social environment intended to facilitate interaction in a community of users? To address this question, this thesis presents a domain-community model developed from the communities of practice concept and the Work Domain Analysis model used in Cognitive Work Analysis. The domain-community model provides a basis for the design a composition of web components for an online social environment that will addresses issues of social engagement and domain effectiveness. In a case study, the domain-community model was used as a basis for the redesign of a social networking portal used by an international development leadership community called UCP-SARnet. A social network analysis of core members of UCP-SARnet was conducted before and after the portal was redesigned. From the social network analysis, it was concluded that the structure of UCP-SARnet was positively affected by the redesign: core group members reported they knew one another significantly more after the redesign of the website than before the redesign. User experience measures of the UCP-SARnet portal, website usage data, and a tally of website communication activity also changed significantly with the redesign of the website. This provided more evidence that a design informed by Cognitive Work Analysis and communities of practice produced a measurable effect on the structure of the UCP-SARnet online community. As such, this model can provide a basis for designers of online communities to more systematically account for social phenomena in relation to collective efforts in a given work domain. Furthermore, it is expected the effectiveness of the model can be taken forward with future work by refining the domain-community model, developing techniques to translate the model into interface concepts, and building practices for community-based research and design.

This work presents the application of a cognitive engineering design method to the design of operational procedures and ground control station interfaces for uninhabited aerial vehicles (UAVs). Designing for UAV systems presents novel challenges, both in terms of selecting and presenting adequate information for effective teleoperation, and in creating operational procedures and ground control station interfaces that are robust to a range of UAV platforms and missions. Creating a coherent set of operating procedures, automatic functions and operator interfaces requires a systematic design approach that considers the system and the mission at different levels of abstraction and integrates the different element of the system. Several models are developed through the application of this cognitive engineering method. An analysis of the work of operating a UAV creates an abstraction decomposition space (ADS) model. The ADS helps identify the control tasks needed to operate the system. A strategies analysis then identifies methods for implementing these control tasks. The distribution of activities and roles between the human and automated components in the system is then considered in a social organization and cooperation analysis. These insights are applied to the design of coherent sets of operational procedures, ground control station interfaces and automatic functions for a specific UAV in support of a continuous target surveillance (CTS) mission. The importance of the coherence provided by the selected design method in the design of UAV operational procedures and ground control station interfaces is analyzed through a human in the loop simulation experiment for this mission. The results of the simulation experiment indicate that UAV controllers using coherently designed elements achieve significantly higher mission performance and experience lower workloads than those that when using incoherently matched elements.

Field managers have a complex job that requires coordinating a large number of variables that affect construction work. This makes their job primarily abstract, which complicates the observation of their activities; in turn, their knowledge is usually organized in a way that does not adequately consider the relationships between these work variables. As such, practical approaches to aid field managers’ work have often neglected these relationships and have been insufficient to aid practitioners’ coordination tasks. For example, many information tools have been developed to support decisions in the field, but their tendency to separate work activities makes it complicated to integrate the tools into work. Similarly, education programs often focus on individual concepts and tasks, which do not match the practical organization of work activities in the field. This dissertation presents the development of comprehensive cognitive models of field managers to gain insight into the approaches of expert practitioners to address the relationships between the major variables of work. Using the Applied Cognitive Work Analysis (ACWA) technique, it is possible to model work in terms of goals, decisions and information requirements of the job. These components are utilized to explain how the variables of work relate to each other and how they contribute towards attaining the objectives and responsibilities of the job. In particular, the inclusion of activities and tools as part of this set of variables gives insight as to how goals are attained through such means. The cognitive model obtained is applied to, first, analyze the integration of information tools into field managers’ work and, second, analyze the utilization of cognitive models to develop instructional programs and tools. As such, this dissertation makes three main contributions. The first contribution is the development of thorough cognitive models of field managers’ work. The second contribution is the use of these models to consider cognitive and behavioral aspects of adoption of information tools in the field. And the third contribution is the use of these models to present field management learners with the opportunity to use the knowledge and approaches of field managers in a robust learning environment. / text

Computer users often suffer from poorly designed support systems that hinder them from performing their work efficiently and with satisfaction. The evidence is found in observations of users at work, interviews, evaluations of systems, and numerous reports of systems with poor usability that fail from start. Those who use the systems are proficient in their work, and those who develop systems are proficient in software engineering. These two groups have often little knowledge and understanding of each other’s worlds and their vocabularies are quite different. In systems development projects, users are often confronted with representations of their work that they hardly recognize. Systems designers compose these representations in an attempt to reduce the complexity of the work practices in a way that is appropriate for systems development. It is very difficult for users to appreciate the consequences fully on their future work situation from such representations, since they are removed from the social setting and often describe work in a fragmentized way. The unfamiliar view of their work may make the users less inclined to participate in the forthcoming design process. This thesis presents research performed to increase the usability of systems in working life and to explore conditions that facilitate the design of systems that really support the users work. The research comprises field studies in different work contexts, e.g. health care, dentistry, public service, and transportation. Information on the essentials of work has been gathered and analyzed to learn how such findings can be translated into systems design. Another goal has been to explore how to make the most of users’ experiences and skills to assure systems that better fit their work. Along with a growing awareness of the importance of user involvement in design, a participatory design process including the analysis and design of work has evolved.

Since the use of computers and IT systems has become an essential part of many people’s daily work, the quality of IT systems’ is becoming more important for efficient, healthy and sustainable work. It has often been argued that the full potential of a new, supportive IT system seldom is achieved, because – despite implementation of the new system - outdated work procedures are still being preserved. We can also see an increase in occupational health problems that are related to the use of poorly designed IT systems. This thesis addresses the questions of how to create a process for developing a sustainable, IT- supported work for the future and how to provide a solid foundation for the development of IT systems. What underlying perspectives should be applied and how can such a process be carried out in practice? Utilizing an action research approach inspired by participatory design methods, a user-centred seminar process called the Vision Seminar Process (VSP) has been developed to address these questions. Observations are presented from three cases in which the VSP has contributed to the organizations’ development and during which the Vision Seminar Process itself continued to evolve. The process provides a framework where practitioners and designers cooperate in the design of both sustainable work and usable IT systems. It is of central importance that a reflective in-depth analysis of users’ work practices is carried out, that their entire work situation and organization is questioned and discussed, and that the design process is carried out with a focus on healthy and sustainable work. Underlying perspectives that advocate a focus on a future work are essential for the successful implementation of the process, in that IT should be the engine that drives the development of work and creates the conditions for a healthy, sustainable work.

In response to growing concerns over the susceptibility of water distribution systems to contamination, this thesis presents the design and evaluation of an ecological display for an intelligent water monitoring system. Work Domain Analysis and Control Task Analysis were used to uncover the information requirements of the display. The work domain model in this thesis is one of a limited number of such models to include a representation of the automation. The resulting ecological display was evaluated in a comparative usability study against an alternative display based on a competitor’s product. Nine certified water operators participated. The displays were compared across three categories of usability measures: effectiveness, efficiency, and satisfaction. No significant differences were observed. The results, however, helped identify design changes for the display. The implications for the design of intelligent automation displays, and the challenge of designing displays in parallel with early development of automation systems, are discussed.

In response to growing concerns over the susceptibility of water distribution systems to contamination, this thesis presents the design and evaluation of an ecological display for an intelligent water monitoring system. Work Domain Analysis and Control Task Analysis were used to uncover the information requirements of the display. The work domain model in this thesis is one of a limited number of such models to include a representation of the automation. The resulting ecological display was evaluated in a comparative usability study against an alternative display based on a competitor’s product. Nine certified water operators participated. The displays were compared across three categories of usability measures: effectiveness, efficiency, and satisfaction. No significant differences were observed. The results, however, helped identify design changes for the display. The implications for the design of intelligent automation displays, and the challenge of designing displays in parallel with early development of automation systems, are discussed.

New social networking and social web tools are becoming available and are easing the process of customizing online social environments. With these developments in technology, core design efforts are being extended beyond usability for individual users and beginning to include notions of sociability for the engagement of communities of users. This thesis is an investigation of these developments. It is guided by the principal research question: how do you design for social engagement in an online social environment intended to facilitate interaction in a community of users? To address this question, this thesis presents a domain-community model developed from the communities of practice concept and the Work Domain Analysis model used in Cognitive Work Analysis. The domain-community model provides a basis for the design a composition of web components for an online social environment that will addresses issues of social engagement and domain effectiveness. In a case study, the domain-community model was used as a basis for the redesign of a social networking portal used by an international development leadership community called UCP-SARnet. A social network analysis of core members of UCP-SARnet was conducted before and after the portal was redesigned. From the social network analysis, it was concluded that the structure of UCP-SARnet was positively affected by the redesign: core group members reported they knew one another significantly more after the redesign of the website than before the redesign. User experience measures of the UCP-SARnet portal, website usage data, and a tally of website communication activity also changed significantly with the redesign of the website. This provided more evidence that a design informed by Cognitive Work Analysis and communities of practice produced a measurable effect on the structure of the UCP-SARnet online community. As such, this model can provide a basis for designers of online communities to more systematically account for social phenomena in relation to collective efforts in a given work domain. Furthermore, it is expected the effectiveness of the model can be taken forward with future work by refining the domain-community model, developing techniques to translate the model into interface concepts, and building practices for community-based research and design.

Cognitive Work analysis (CWA) as an analytical approach for examining complex socio-technical systems has shown success in modeling the work of single operators. The CWA approach allows room for social and team interactions, but a more explicit analysis of team aspects can reveal more information for systems design. CWA techniques and models do not yet provide sufficient guidance on identifying shared constraints, team strategies, or social competencies of team players. In this thesis, I explore whether a team approach to CWA can yield more information than a typical CWA. Team CWA techniques and models emerge and extend from theories and models of teamwork, past attempts to model teams with CWA, and the results of two sets of observational studies. The potential benefits of using Team CWA models in domains with strong team collaboration are demonstrated through the results of a two-week observation at the Labour and Delivery Department of The Ottawa Hospital and a fifteen-week observation at the IBM Ottawa Software Group.