Whole document restricted, see Access Instructions file below for details of how to access the print copy. / Achieving and sustaining business-IT alignment in organisations continues to be a management challenge into the new millennium. As organisations strive toward this end, researchers are attempting to better understand the alignment phenomenon. Empirical research into business-IT alignment is dominated by studies examining the relationship between business strategy, information technology and performance. Investigations into the factors enabling or inhibiting alignment are emerging. This research has traditionally taken a behavioural perspective. There is evidence of little research that examines the issue through a cognitive lens. This thesis builds on and extends the study of business-IT alignment by investigating the cognition of the key stakeholders of the alignment process - business and IS executives. Drawing on Personal Construct Theory (Kelly, 1955), this study uses a cognitive mapping methodology known as the repertory grid technique to investigate two questions: i) is there a positive relationship between business-IT alignment and shared understanding between business and IS executives?; and ii) are there differences in the cognitive maps of business and IS executives in companies that report high business-IT alignment and those that report low business-IT alignment? Shared understanding is defined as cognition that is held in common between and that which is distributed amongst business and IS executives. It is portrayed in the form of a cognitive map for each company. The study proposes that business-IT alignment is directly related to the shared understanding between business and IS executives and that the cognitive maps of these executive groups are less diverse in companies that report a high level of alignment. Eighty business and IS executives from six companies were interviewed. Cognitive maps were elicited from the research participants from which diversity between cognitive maps of business and IS executives are measured. A collective cognitive map was produced to illustrate the quality of the shared understanding in each company. The state of business-IT alignment in each company was also measured. The results of the study suggest that there is a strong positive link between business-IT alignment and shared understanding between business and IS executives. As expected, companies with a high-level of business-IT alignment demonstrate high quality shared understanding between its business and IS executives as measured and portrayed by their collective cognitive maps. The investigation further finds significant diversity in the structure and content of the cognitive maps of these executive groups in companies reporting a low-level of alignment. This study concludes that shared understanding, between business and IS executives, is important to business-IT alignment. Reconciling the diversity in the cognitive maps of business and IS executives is a step toward achieving and sustaining alignment. Practical approaches to developing shared understanding are proposed. A methodology to aid organisations in assessing shared understanding between their business and IS executives is also outlined. Finally research on business-IT alignment continues to be a fruitful and important field of IS research. This study suggests that the most interesting issues are at the interface between cognition and behaviour. The process of business-IT alignment in organisations is characterised by the individuality and commonality in the cognition of key stakeholders, its influence on the behaviour of these members and hence the organisational action taken.

Although there is a high risk of failure in the implementation of ICT projects (which appears to extend to health ICT projects), we continue to implement health information systems in order to deliver quality, cost-effective healthcare. The purpose of the research was to participate in and study the change management as a critical success factor in health ICT projects, and to examine people’s responses to change so as to develop understanding and theory that could be used in future change management programmes. The research was conducted within the context of a large infrastructure project that resulted from the emergence of a shared services organisation (from two participating District Health Boards in Auckland, New Zealand). Action research (AR) formed the basis of the methodology used, and provided the foundation for a change management programme: the AR intervention. Grounded theory (GT) was used for some of the data analysis, the generation of themes by means of constant comparison and the deeper examination of the change process using theoretical sampling. AR and GT together supported the development of theory regarding the change process associated with health ICT projects. Health ICT projects were revealed in the findings as exhibiting the properties of complex adaptive systems. This complexity highlighted the art of change management as a critical success factor for such projects. The fabric of change emerged as a composite of processes linked to project processes and organisational processes. The turning point in the change process from the before state to the after state is marked by a capability crisis which requires effective patterns of leadership, sensitive targeting of communication, effective learning, and management of increased workload and diminishing resources during the course of health ICT projects. A well managed capability crisis period as a component of change management can substantially contribute to health ICT project success.

This thesis describes the AP1 system, which serves as a platform for model-based CASE technology. AP1 is a set of libraries and tools that support different activities in the software development process. It provides different layers of reusable CASE functionality, and thus facilitates CASE tool development and integration. Some key problems of software development are addressed, such as the storage and management of artifacts, their creation and modification, and the generation of program code. The main parts of the abstract platform are a typed repository for models and model data, and a generic editor that acts as an integrated software development environment (IDE). The former enables data integration; the latter serves as a basis for presentation integration. Both parts have an extensible and customizable architecture that makes it possible for developers to adapt the system to their own individual needs. The thesis discusses different data models, explaining why the parsimonious data model was chosen for the repository. A mapping onto the relational data model is given that makes it possible to leverage a RDBMS for data management. On top of the RDBMS, the AP1 system implements new mechanisms for caching, event notification and change control, resulting in a unique architecture. The thesis introduces novel concepts of robustness and reflection for user interfaces, and delineates their implementation in the generic editor. Furthermore, a concept for code generators is presented that offers a particularly high degree of type-safety, which we call generator type-safety.

The ongoing convergence of cell-based wireless systems, from proprietary standards for data transmission toward a unifying approach based on the Internet Protocol (IP), as well as the increasing ability of wireless computer networks to support Quality-of-Service, opens up a tremendous potential for new business models and is expected to significantly alter the way mobile and wireless services are provided. An important field of study is about understanding the implications on the competitive structure of the wireless market. With the technical barriers between di erent technologies more and more diminishing, it becomes possible for customers to select network access on-demand instead of entering long-term contracts with a single wireless network provider based on factors such as connection speed, level of mobility and prices. In such a setting, wireless network providers, but also the regulatory bodies designing the principle market rules, need to learn about new ways of allocating resources among customers to reach their objectives. With resources being available on-demand, pricing becomes an important factor for controlling demand and distributing resources among users. Instead of being fixed over longer periods, pricing can be used for signalling the congestion levels in di erent wireless networks and to let users communicate their willingness-to-pay to the market. Besides presenting a classification framework for pricing in wireless networks and providing a comprehensive review of the relevant literature, the main contributions of this thesis are on the development of behavioural strategies, which di erent entities can follow in the described scenarios. In the first scenario we regard wireless resources as a public good, which should be efficiently allocated among active customers. By letting each provider use a second price auction, with each customer being able to bundle resources from multiple providers, we develop a bidding strategy, which allows customers to distribute their demand among providers. The bidding strategy resembles truth-telling in such a market and is shown to be the best strategy a user can follow to fulfill his demand. We examine the properties of the system analytically and present the results of an extensive simulation study. In the second scenario we model a free market for wireless resources on which prices are determined at the time of request. With customers having more than one option to obtain resources, the task of a provider becomes setting prices so that it maximises revenue under partial or full competition. We discuss the constrained maximisation problem and analyse the situation of a two-provider setting as a game. Simulation is used to analyse the game under uncertainty and to understand if a steady-state situation arises. While the results make use of multiple simplifications to allow us to understand the main model variables, the findings can potentially be of interest for providers and market authorities to develop new ways for resource allocation using dynamic pricing as a tool for reaching their design objectives.

Centruflow is an application that can be used to visualise structured data. It does this by drawing graphs, allowing for users to explore information relationships that may not be visible or easily understood otherwise. This helps users to gain a better understanding of their organisation and to communicate more effectively. In earlier versions of Centruflow, it was difficult to develop new functionality as it was built using a relatively unsupported and proprietary visualisation toolkit. In addition, there were major issues surrounding information currency and trust. Something had to be done, and this was a sub-project of this thesis. The main purpose of this thesis however was to research and develop a set of mathematical algorithms to infer implicit relationships in Centruflow data sources. Once these implicit relationships were found, we could make them explicit by showing them within Centruflow. To enable this, relationships were to be calculated based on providing users with the ability to 'tag' resources with metadata. We believed that by using this tagging metadata, Centruflow could offer users far more insight into their own data. Implementing this was not a straight-forward task, as it required a considerable amount of research and development to be undertaken to understand and appreciate technologies that could help us in our goal. Our focus was primarily on technologies and approaches common in the semantic web and 'Web 2.0' areas. By pursuing semantic web technologies, we ensured that Centruflow would be considerably more standards-compliant than it was previously. At the conclusion of our development period, Centruflow had been rather substantially 'retrofitted', with all proprietary technologies replaced with equivalent semantic web technologies. The result of this is that Centruflow is now positioned on the forefront of the semantic web wave, allowing for far more comprehensive and rapid visualisation of a far larger set of readily-available data than what was possible previously. Having implemented all necessary functionality, we validated our approach and were pleased to find that our improvements led to a considerably more intelligent and useful Centruflow application than was previously available. This functionality is now available as part of 'Centruflow 3.0', which will be publicly released in March 2008. Finally, we conclude this thesis with a discussion on the future work that should be undertaken to improve on the current release.

Centruflow is an application that can be used to visualise structured data. It does this by drawing graphs, allowing for users to explore information relationships that may not be visible or easily understood otherwise. This helps users to gain a better understanding of their organisation and to communicate more effectively. In earlier versions of Centruflow, it was difficult to develop new functionality as it was built using a relatively unsupported and proprietary visualisation toolkit. In addition, there were major issues surrounding information currency and trust. Something had to be done, and this was a sub-project of this thesis. The main purpose of this thesis however was to research and develop a set of mathematical algorithms to infer implicit relationships in Centruflow data sources. Once these implicit relationships were found, we could make them explicit by showing them within Centruflow. To enable this, relationships were to be calculated based on providing users with the ability to 'tag' resources with metadata. We believed that by using this tagging metadata, Centruflow could offer users far more insight into their own data. Implementing this was not a straight-forward task, as it required a considerable amount of research and development to be undertaken to understand and appreciate technologies that could help us in our goal. Our focus was primarily on technologies and approaches common in the semantic web and 'Web 2.0' areas. By pursuing semantic web technologies, we ensured that Centruflow would be considerably more standards-compliant than it was previously. At the conclusion of our development period, Centruflow had been rather substantially 'retrofitted', with all proprietary technologies replaced with equivalent semantic web technologies. The result of this is that Centruflow is now positioned on the forefront of the semantic web wave, allowing for far more comprehensive and rapid visualisation of a far larger set of readily-available data than what was possible previously. Having implemented all necessary functionality, we validated our approach and were pleased to find that our improvements led to a considerably more intelligent and useful Centruflow application than was previously available. This functionality is now available as part of 'Centruflow 3.0', which will be publicly released in March 2008. Finally, we conclude this thesis with a discussion on the future work that should be undertaken to improve on the current release.

This thesis presents an e-learning solution to facilitate formative assessment of electronically submitted open-ended written assignments.It is widely accepted that formative assessment is highly beneficial to student leaning. A number of researchers are active in developing specialized approaches and software systems for assisting formative assessment of student work. However, no comprehensive e-learning solution exists for facilitating formative assessment of students' open-ended written work. The project presented in this thesis has developed a new approach for using computers to facilitate formative assessment of electronically submitted open-ended written assignments.Based on the literature review of the education theories around formative assessment and current computer software technologies, this project has developed three principles for e-learning support for formative assessment of open-ended written assignments:1. It needs to facilitate all the activities that are potentially required for formative assessment of student assignments (for example, the creation of assessment criteria, the submission of assignments, and the analysis of the assessment results), not only the marking activity to create feedback on assignments.2. It needs to provide an onscreen marking tool which enables human markers to mark open-ended written assignments in an intuitive and efficient way by replicating their paper-based assessment approaches.3. It needs to provide a generic solution for facilitating formative assessment of open-ended written assignments from all disciplines, not a limited solution restricted to some specific domains (for example, computers science or business courses).Based on these principles, a specification of an e-learning system for facilitating formative assessment of open-ended written assignment was developed and a system was implemented accordingly. This system, called the Written Assignment Assessment (WAA) system, has been already used in the assignment marking of several courses at Massey University.

This thesis presents an e-learning solution to facilitate formative assessment of electronically submitted open-ended written assignments.It is widely accepted that formative assessment is highly beneficial to student leaning. A number of researchers are active in developing specialized approaches and software systems for assisting formative assessment of student work. However, no comprehensive e-learning solution exists for facilitating formative assessment of students' open-ended written work. The project presented in this thesis has developed a new approach for using computers to facilitate formative assessment of electronically submitted open-ended written assignments.Based on the literature review of the education theories around formative assessment and current computer software technologies, this project has developed three principles for e-learning support for formative assessment of open-ended written assignments:1. It needs to facilitate all the activities that are potentially required for formative assessment of student assignments (for example, the creation of assessment criteria, the submission of assignments, and the analysis of the assessment results), not only the marking activity to create feedback on assignments.2. It needs to provide an onscreen marking tool which enables human markers to mark open-ended written assignments in an intuitive and efficient way by replicating their paper-based assessment approaches.3. It needs to provide a generic solution for facilitating formative assessment of open-ended written assignments from all disciplines, not a limited solution restricted to some specific domains (for example, computers science or business courses).Based on these principles, a specification of an e-learning system for facilitating formative assessment of open-ended written assignment was developed and a system was implemented accordingly. This system, called the Written Assignment Assessment (WAA) system, has been already used in the assignment marking of several courses at Massey University.

Centruflow is an application that can be used to visualise structured data. It does this by drawing graphs, allowing for users to explore information relationships that may not be visible or easily understood otherwise. This helps users to gain a better understanding of their organisation and to communicate more effectively. In earlier versions of Centruflow, it was difficult to develop new functionality as it was built using a relatively unsupported and proprietary visualisation toolkit. In addition, there were major issues surrounding information currency and trust. Something had to be done, and this was a sub-project of this thesis. The main purpose of this thesis however was to research and develop a set of mathematical algorithms to infer implicit relationships in Centruflow data sources. Once these implicit relationships were found, we could make them explicit by showing them within Centruflow. To enable this, relationships were to be calculated based on providing users with the ability to 'tag' resources with metadata. We believed that by using this tagging metadata, Centruflow could offer users far more insight into their own data. Implementing this was not a straight-forward task, as it required a considerable amount of research and development to be undertaken to understand and appreciate technologies that could help us in our goal. Our focus was primarily on technologies and approaches common in the semantic web and 'Web 2.0' areas. By pursuing semantic web technologies, we ensured that Centruflow would be considerably more standards-compliant than it was previously. At the conclusion of our development period, Centruflow had been rather substantially 'retrofitted', with all proprietary technologies replaced with equivalent semantic web technologies. The result of this is that Centruflow is now positioned on the forefront of the semantic web wave, allowing for far more comprehensive and rapid visualisation of a far larger set of readily-available data than what was possible previously. Having implemented all necessary functionality, we validated our approach and were pleased to find that our improvements led to a considerably more intelligent and useful Centruflow application than was previously available. This functionality is now available as part of 'Centruflow 3.0', which will be publicly released in March 2008. Finally, we conclude this thesis with a discussion on the future work that should be undertaken to improve on the current release.

Centruflow is an application that can be used to visualise structured data. It does this by drawing graphs, allowing for users to explore information relationships that may not be visible or easily understood otherwise. This helps users to gain a better understanding of their organisation and to communicate more effectively. In earlier versions of Centruflow, it was difficult to develop new functionality as it was built using a relatively unsupported and proprietary visualisation toolkit. In addition, there were major issues surrounding information currency and trust. Something had to be done, and this was a sub-project of this thesis. The main purpose of this thesis however was to research and develop a set of mathematical algorithms to infer implicit relationships in Centruflow data sources. Once these implicit relationships were found, we could make them explicit by showing them within Centruflow. To enable this, relationships were to be calculated based on providing users with the ability to 'tag' resources with metadata. We believed that by using this tagging metadata, Centruflow could offer users far more insight into their own data. Implementing this was not a straight-forward task, as it required a considerable amount of research and development to be undertaken to understand and appreciate technologies that could help us in our goal. Our focus was primarily on technologies and approaches common in the semantic web and 'Web 2.0' areas. By pursuing semantic web technologies, we ensured that Centruflow would be considerably more standards-compliant than it was previously. At the conclusion of our development period, Centruflow had been rather substantially 'retrofitted', with all proprietary technologies replaced with equivalent semantic web technologies. The result of this is that Centruflow is now positioned on the forefront of the semantic web wave, allowing for far more comprehensive and rapid visualisation of a far larger set of readily-available data than what was possible previously. Having implemented all necessary functionality, we validated our approach and were pleased to find that our improvements led to a considerably more intelligent and useful Centruflow application than was previously available. This functionality is now available as part of 'Centruflow 3.0', which will be publicly released in March 2008. Finally, we conclude this thesis with a discussion on the future work that should be undertaken to improve on the current release.