Thesis submitted to the Division of Arts. / Thesis (D.I.T.)--Murdoch University, 2007. Includes bibliographical references (p. 230-237).

Thesis (Ph. D.)--University of Hawaii at Manoa, 2003. / Includes bibliographical references (leaves 147-166).

Thesis (PhD) -- AUT University, 2008. / Includes bibliographical references. Also held in print (2 v. (xxviii, 528, [286] p.) : ill. ; 30 cm.) in the Archive at the City Campus (T 658.4022 CLE)

Thesis (M.A.)-University of KwaZulu-Natal, Durban, 2009. / Full text also available online. Scroll down for electronic link.

Organizations face challenges constantly owing to limited resources. As such, to take advantage of new opportunities and to mitigate possible risks they look for new ways to collaborate, by sharing knowledge and competencies. Coordination among partners is critical in order to achieve success. The segmented South African public sector is no different. Driven by the desire to ensure proper service delivery in this sector, various government bodies and service providers play different roles towards the attainment of common goals. This is easier said than done, given the complexity of the distributed nature of the environment. Heterogeneity, autonomy, and the increasing need to collaborate provoke the need to develop an integrative and dynamic coordination support service system in the SA public sector. Thus, the research looks to theories/concepts and existing coordination practices to ground the process of development. To inform the design of the proposed artefact the research employs an interdisciplinary approach championed by coordination theory to review coordination-related theories and concepts. The effort accounts for coordination constructs that characterize and transform the problem and solution spaces. Thus, requirements are explicit towards identifying coordination breakdowns and their resolution. Furthermore, how coordination in a distributed environment is supported in practice is considered from a socio-technical perspective in an effort to account holistically for coordination support. Examining existing solutions identified shortcomings that, if addressed, can help to improve the solutions for coordination, which are often rigidly and narrowly defined. The research argues that introducing a mediating technological artefact conceived from a virtual community and service lenses can serve as a solution to the problem. By adopting a design-science research paradigm, the research develops a model as a primary artefact to support coordination from a collaboration standpoint. The suggestions from theory and practice and the unique case requirement identified through a novel case analysis framework form the basis of the model design. The proposed model support operation calls for an architecture which employs a design pattern that divides a complex whole into smaller, simpler parts, with the aim of reducing the system complexity. Four fundamental functions of the supporting architecture are introduced and discussed as they would support the operation and activities of the proposed collaboration lifecycle model geared towards streamlining coordination in a distributed environment. As part of the model development knowledge contributions are made in several ways. Firstly, an analytical instrument is presented that can be used by an enterprise architect or business analyst to study the coordination status quo of a collaborative activity in a distributed environment. Secondly, a lifecycle model is presented as meta-process model with activities that are geared towards streamlining the coordination of dynamic collaborative activities or projects. Thirdly, an architecture that will enable the technical virtual community-centric, context-aware environment that hosts the process-based operations is offered. Finally, the validation tool that represents the applied contribution to the research that promises possible adaptation for similar circumstances is presented. The artefacts contribute towards a design theory in IS research for the development and improvement of coordination support services in a distributed environment such as the South African public sector.

Background: The literature has traditionally seen shirking as a negative phenomenon that leads to the productivity loss of individuals and organizations and thus has to be confronted with the help of control in the form of monitoring. However, considering that in the nowadays popular virtual work setting the ability to apply some controls can be hindered and the ethicality of electronic performance monitoring is questioned, there is a need to rethink the established view on shirking and explore the role of trust in it. Aim: Examine how managerial controls and trust impact employees’ shirking in the virtual work setting through the lens of employees’ perceptions. Methodology: A qualitative study was conducted using semi-structured interviews. The interviewees are nine employees from various industries in Sweden who have less than 5 years of working experience in total and have been working within their last company for at least 6 months face-to-face and at least 6 months virtually under the supervision of one manager. Findings: The analysis revealed that employees who receive the control and trust that they want from their managers generally do not shirk, even with none or little monitoring when working virtually, but those who experience mismatches between control and trust wanted and received either tend to shirk or risk getting burnout and/or quitting the company. This highlights the importance of considering employees’ needs for both control and trust when addressing shirking in the virtual work setting. Moreover, a potential positive aspect of shirking was found in the way that occasional moderate shirking in combination with control and trust matches can have a positive impact on employees’ well-being and productivity in the long-term.

This thesis introduces and presents the modeling of a novel compliant spinal implant designed to reduce back pain and restore function to degenerate spinal disc tissues as well as provide a mechanical environment conducive to healing the tissues. The initial objectives for this device development and the focus of this work are modeling and validation of the force-deflection relationships and stress analysis. Modeling was done using the pseudo-rigid-body model to create a 3 degree of freedom mechanism for flexion-extension (forward-backward bending) and a 5 degree of freedom mechanism for lateral bending (side-to-side). These models were analyzed using the principle of virtual work to obtain the force-deflection response of the device. The model showed good correlation to finite element analysis and experimental results. Also, described in this thesis is a model that incorporates an estimate of the combined stiffness of the biologic structures. This combined model is confirmed by cadaveric testing. A stress analysis of the implant for combined loading conditions is also presented. This work introduces and provides a foundation for the FlexSuRe™ spinal implant.

A new administrative scenario - the virtual office - emerged in organisations because of the influence of technological developments that drastically changed the traditional office scenario. The virtual office is a worksite that is situated outside of the traditional office, where people still do the work associated with a traditional office, whilst maintaining their status as full-time employees. Although telework has been practiced internationally for several decades, it is a new concept in South Africa with only a few large organisations embarking on telework. The purpose of this study was to determine the extent to which organisations in trade and industry are aware of and comply with the required policies, regulations and legislation in terms of ergonomics, technology and health in the e-environment. The preferred kind of telework and information and communication technologies for the South African context was determined. The study investigated the prevalence and extent of health and wellness aspects that teleworkers could be exposed to in the e-environment. The role that ergonomics could play in the prevention of work-related musculoskeletal disorders that could lead to compensation claims and other legal actions was investigated. The elements that could ensure the successful implementation of a telework programme were identified and were presented as a conceptual telework framework. Within the parameters of applied research, a descriptive quantitative research design has been followed. The mode of enquiry followed in this research was a quantitative, non-experimental, survey method. A baseline study has been conducted followed by an empirical study using two structured online questionnaires, one for managers of teleworkers and one for teleworking employees. The findings indicated that although the policies, regulations and legislation existed, organisations did not diligently comply with it. The lack of training for the managers and teleworkers on the applicable policies and legislation caused concern. The application of ergonomic specifications on the use of equipment, furniture and services at the preferred home office, is mainly done to avoid ergonomic risk factors that may lead to the development of work-related musculoskeletal disorders. Although teleworkers suffered from disorders, there was a lack of knowledge on ergonomic interventions and on the processes to claim compensation. The need for an instrument that will assist organisations to implement telework successfully has been identified. Therefore, a conceptual telework framework that provides a structure of the elements that need to be in place to implement a telework programme successfully has been proposed. / Business Management / D. Admin. (Business Management)

A new administrative scenario - the virtual office - emerged in organisations because of the influence of technological developments that drastically changed the traditional office scenario. The virtual office is a worksite that is situated outside of the traditional office, where people still do the work associated with a traditional office, whilst maintaining their status as full-time employees. Although telework has been practiced internationally for several decades, it is a new concept in South Africa with only a few large organisations embarking on telework. The purpose of this study was to determine the extent to which organisations in trade and industry are aware of and comply with the required policies, regulations and legislation in terms of ergonomics, technology and health in the e-environment. The preferred kind of telework and information and communication technologies for the South African context was determined. The study investigated the prevalence and extent of health and wellness aspects that teleworkers could be exposed to in the e-environment. The role that ergonomics could play in the prevention of work-related musculoskeletal disorders that could lead to compensation claims and other legal actions was investigated. The elements that could ensure the successful implementation of a telework programme were identified and were presented as a conceptual telework framework. Within the parameters of applied research, a descriptive quantitative research design has been followed. The mode of enquiry followed in this research was a quantitative, non-experimental, survey method. A baseline study has been conducted followed by an empirical study using two structured online questionnaires, one for managers of teleworkers and one for teleworking employees. The findings indicated that although the policies, regulations and legislation existed, organisations did not diligently comply with it. The lack of training for the managers and teleworkers on the applicable policies and legislation caused concern. The application of ergonomic specifications on the use of equipment, furniture and services at the preferred home office, is mainly done to avoid ergonomic risk factors that may lead to the development of work-related musculoskeletal disorders. Although teleworkers suffered from disorders, there was a lack of knowledge on ergonomic interventions and on the processes to claim compensation. The need for an instrument that will assist organisations to implement telework successfully has been identified. Therefore, a conceptual telework framework that provides a structure of the elements that need to be in place to implement a telework programme successfully has been proposed. / Business Management / D. Admin. (Business Management)

The impact of globalisation and advanced information technology on service and knowledgebased industries in South Africa contributes to these workplaces becoming increasingly virtual. Virtual teams can be seen as a mechanism that organisations could use to increase their orientation for change through enhancing and integrating key organisational resources such as people, space and information technology to deliver greater business value. The findings of several studies suggest that the implementation of virtual teams is associated with benefits such as cost and time saving, increased employee productivity and employee empowerment. There are however salient barriers to effective virtual teamwork that organisations need to address before engaging in the transformational process towards virtual teamwork. The literature review identified ineffective leadership practices, factors relating to virtual team development, inadequate use of information technology and a paucity of social and organisational cultural integration, as the most salient features that impede effective virtual teamwork. The objective of this research was to develop a basic theoretical framework for the implementation of virtual teams. Since virtual teams emanate from a relatively new area of research an inductive methodology, based on a literature review, was used to achieve the research objective. Several theoretical models on virtual teams and their effectiveness thereon were explored to conceptualise the dynamic nature of virtual teams and the requirements for implementing them in the workplace. The results of the study indicated that an emergent approach to change be followed and that the following factors be addressed to determine an organisation's readiness for the implementation of virtual teams, namely: the degree of interdependence between tasks, structural requirements, technological requirements, process redesign and the selection of appropriate people. A methodology for work transformation towards virtual teamwork was suggested based on an integration of these factors. / Thesis (M.Sc. (Industrial Psychology))--North-West University, Potchefstroom Campus, 2004.