<p>Providing carrier grade characteristics for Internet Protocol (IP) communication applications is a significant problem for IP application providers in order to offer integrated services that span IP&nbsp / and telecommunication networks. This thesis addresses the provision of life-cycle management, which is only one carrier grade characteristic, for a SoftBridge application, which is an example of IP communication applications. A SoftBridge provides semi-synchronous multi-modal IP-based communication. The work related to IP-Telecommunication integrated services and the SoftBridge is analyzed with respect to life-cycle management in a literature review. It is suggested to use an Application Server in a Next Generation Network (NGN) to provide life-cyclemanagement functionality for IP-Telecommunication applications. In this thesis, the Application Server is represented by a JAIN Service Logic Execution Environment(JSLEE), in which&nbsp / a SoftBridge application can be deployed, activated, deactivated, uninstalled and upgraded online.Two methodologies are applied in this research: exploratory prototyping, which evolves the development of a SoftBridge application, and empirical comparison, which is concerned with the empirical evaluation of a SoftBridge application in terms of carriergrade capabilities. A SoftBridge application called SIMBA&nbsp / provides a Deaf Telephony service similar to aprevious Deaf Telephony SoftBridge, However, SIMBA&rsquo / s SoftBridge design and implementation are unique to this thesis. In order to test the life-cycle&nbsp / management ability of SIMBA, an empirical evaluation is carried out including the experiments oflife-cycle management and call-processing performance. The final experimental results of the evaluation show that a JSLEE is able to provide life-cycle management for SIMBA without causing a significant decrease in performance. In conclusion, the life-cycle management can be provided&nbsp / or a SoftBridge application by using an Application Server such as a JSLEE. Futhermore, the results indicate that&nbsp / approach of using Application Server (JSLEE) integration should be&nbsp / sufficiently general to provide life cycle management, and indeed other carrier grade capabilities, for other IP communication applications. This allows IP communication applications to be&nbsp / &nbsp / &nbsp / integrated into an NGN.</p>

In a world with limited resources and serious environmental, social and economical impacts, a more sustainable life style is everyday more important. Therefore, the general objective of this work is to develop a methodological procedure for eco-efficiency and sustainability assessment of industrial processes with multi-scale technology at design level. The methodology developed follows the ISO 14040 series for environmental LCA standard. To integrate the three pillars of sustainability the analytical hierarchical process was used. The results are represented in a triple bottom line framework. The methodology was applied to the case study "production of perfume-containing microcapsules" and different scenarios were assessed and compared. Several sustainability indicators were chosen to analyze the impacts. The results showed that this methodology can be used as a decision making tool for sustainability reporting. It can be applied to any process choosing in each case the corresponding set of inventory data and sustainability impact indicators. / En un mundo con recursos limitados y graves impactos ambientales, sociales y económicos, un estilo de vida más sostenible es cada día más importante. Debido a esto, el objetivo general de este trabajo es desarrollar un procedimiento metodológico para evaluar eco-eficiencia y sostenibilidad de procesos industriales con tecnología multi-escala a nivel de diseño. La metodología desarrollada sigue la serie ISO 14040 para el medio ambiente. Se utilizó el proceso analítico jerárquico para integrar los tres pilares de sostenibilidad. Los resultados se presentan en un balance triple. La metodología se aplicó al caso de estudio "producción de micro-cápsulas que contienen perfume" y se analizaron y compararon diferentes escenarios. Se seleccionaron diversos indicadores de sostenibilidad para analizar los impactos. Los resultados demostraron que esta metodología puede ser utilizada como herramienta de toma de decisiones y que puede aplicarse a cualquier proceso seleccionando, en cada caso, los datos del inventario y los indicadores.

<p>Providing carrier grade characteristics for Internet Protocol (IP) communication applications is a significant problem for IP application providers in order to offer integrated services that span IP&nbsp / and telecommunication networks. This thesis addresses the provision of life-cycle management, which is only one carrier grade characteristic, for a SoftBridge application, which is an example of IP communication applications. A SoftBridge provides semi-synchronous multi-modal IP-based communication. The work related to IP-Telecommunication integrated services and the SoftBridge is analyzed with respect to life-cycle management in a literature review. It is suggested to use an Application Server in a Next Generation Network (NGN) to provide life-cyclemanagement functionality for IP-Telecommunication applications. In this thesis, the Application Server is represented by a JAIN Service Logic Execution Environment(JSLEE), in which&nbsp / a SoftBridge application can be deployed, activated, deactivated, uninstalled and upgraded online.Two methodologies are applied in this research: exploratory prototyping, which evolves the development of a SoftBridge application, and empirical comparison, which is concerned with the empirical evaluation of a SoftBridge application in terms of carriergrade capabilities. A SoftBridge application called SIMBA&nbsp / provides a Deaf Telephony service similar to aprevious Deaf Telephony SoftBridge, However, SIMBA&rsquo / s SoftBridge design and implementation are unique to this thesis. In order to test the life-cycle&nbsp / management ability of SIMBA, an empirical evaluation is carried out including the experiments oflife-cycle management and call-processing performance. The final experimental results of the evaluation show that a JSLEE is able to provide life-cycle management for SIMBA without causing a significant decrease in performance. In conclusion, the life-cycle management can be provided&nbsp / or a SoftBridge application by using an Application Server such as a JSLEE. Futhermore, the results indicate that&nbsp / approach of using Application Server (JSLEE) integration should be&nbsp / sufficiently general to provide life cycle management, and indeed other carrier grade capabilities, for other IP communication applications. This allows IP communication applications to be&nbsp / &nbsp / &nbsp / integrated into an NGN.</p>

Abstract - Mobile devices in the near future will need to collaborate to fulfill their function. Collaboration will be done by communication. We use a real world example of robotic soccer to come up with the necessary structures required for robotic communication. A review of related work is done and it is found no examples come close to providing a RANET. The robotic ad hoc network (RANET) we suggest uses existing structures pulled from the areas of wireless networks, peer to peer and software life-cycle management. Gaps are found in the existing structures so we describe how to extend some structures to satisfy the design. The RANET design supports robot cooperation by exchanging messages, discovering needed skills that other robots on the network may possess and the transfer of these skills. The network is built on top of a Bluetooth wireless network and uses JXTA to communicate and transfer skills. OSGi bundles form the skills that can be transferred. To test the nal design a reference implementation is done. Deficiencies in some third party software is found, specifically JXTA and JamVM and GNU Classpath. Lastly we look at how to fix the deciencies by porting the JXTA C implementation to the target robotic platform and potentially eliminating the TCP/IP layer, using UDP instead of TCP or using an adaptive TCP/IP stack. We also propose a future areas of investigation; how to seed the configuration for the Personal area network (PAN) Bluetooth protocol extension so a Bluetooth TCP/IP link is more quickly formed and using the STP to allow multi-hop messaging and transfer of skills.

Magister Scientiae - MSc / Providing carrier grade characteristics for Internet Protocol (IP) communication applications is a significant problem for IP application providers in order to offer integrated services that span IP and telecommunication networks. This thesis addresses the provision of life-cycle management, which is only one carrier grade characteristic, for a SoftBridge application, which is an example of IP communication applications. A SoftBridge provides semi-synchronous multi-modal IP-based communication. The work related to IP-Telecommunication integrated services and the SoftBridge is analyzed with respect to life-cycle management in a literature review. It is suggested to use an Application Server in a Next Generation Network (NGN) to provide life-cyclemanagement functionality for IP-Telecommunication applications. In this thesis, the Application Server is represented by a JAIN Service Logic Execution Environment(JSLEE), in which a SoftBridge application can be deployed, activated, deactivated, uninstalled and upgraded online.Two methodologies are applied in this research: exploratory prototyping, which evolves the development of a SoftBridge application, and empirical comparison, which is concerned with the empirical evaluation of a SoftBridge application in terms of carriergrade capabilities. A SoftBridge application called SIMBA provides a Deaf Telephony service similar to aprevious Deaf Telephony SoftBridge, However, SIMBA’s SoftBridge design and implementation are unique to this thesis. In order to test the life-cycle management ability of SIMBA, an empirical evaluation is carried out including the experiments oflife-cycle management and call-processing performance. The final experimental results of the evaluation show that a JSLEE is able to provide life-cycle management for SIMBA without causing a significant decrease in performance. In conclusion, the life-cycle management can be provided or a SoftBridge application by using an Application Server such as a JSLEE. Futhermore, the results indicate that approach of using Application Server (JSLEE) integration should be sufficiently general to provide life cycle management, and indeed other carrier grade capabilities, for other IP communication applications. This allows IP communication applications to be integrated into an NGN.Providing carrier grade characteristics for Internet Protocol (IP) communication applications is a significant problem for IP application providers in order to offer integrated services that span IP and telecommunication networks. This thesis addresses the provision of life-cycle management, which is only one carrier grade characteristic, for a SoftBridge application, which is an example of IP communication applications. A SoftBridge provides semi-synchronous multi-modal IP-based communication. The work related to IP-Telecommunication integrated services and the SoftBridge is analyzed with respect to life-cycle management in a literature review. It is suggested to use an Application Server in a Next Generation Network (NGN) to provide life-cyclemanagement functionality for IP-Telecommunication applications. In this thesis, the Application Server is represented by a JAIN Service Logic Execution Environment(JSLEE), in which a SoftBridge application can be deployed, activated, deactivated, uninstalled and upgraded online.Two methodologies are applied in this research: exploratory prototyping, which evolves the development of a SoftBridge application, and empirical comparison, which is concerned with the empirical evaluation of a SoftBridge application in terms of carriergrade capabilities. A SoftBridge application called SIMBA provides a Deaf Telephony service similar to aprevious Deaf Telephony SoftBridge, However, SIMBA’s SoftBridge design and implementation are unique to this thesis. In order to test the life-cycle management ability of SIMBA, an empirical evaluation is carried out including the experiments oflife-cycle management and call-processing performance. The final experimental results of the evaluation show that a JSLEE is able to provide life-cycle management for SIMBA without causing a significant decrease in performance. In conclusion, the life-cycle management can be provided or a SoftBridge application by using an Application Server such as a JSLEE. Futhermore, the results indicate that approach of using Application Server (JSLEE) integration should be sufficiently general to provide life cycle management, and indeed other carrier grade capabilities, for other IP communication applications. This allows IP communication applications to be integrated into an NGN. / South Africa

A Gestão do Ciclo de Vida (LCM) pode ser entendida como uma abordagem para melhorar continuamente o desempenho em sustentabilidade da organização e de seus produtos e serviços por meio da incorporação do pensamento de ciclo de vida nas práticas de negócio. Entretanto, faltam instrumentos de gestão para auxiliar na sua operacionalização e implementação. Nesse sentido cabe destacar as possibilidades advindas da abordagem de Gestão por Processos de Negócio (BPM), que visa a reestruturação e otimização das atividades organizacionais. Este trabalho teve como objetivo identificar e analisar as relações entre essa duas abordagens, verificando as possibilidades de contribuições entre elas. Para isso foi conduzida uma revisão bibliográfica sistemática para identificar as definições e práticas de BPM e LCM, que foram utilizadas para a elaboração de definições de trabalho e para a análise das relações entre as práticas e os processos de negócio. Adicionalmente, foi realizado um estudo bibliométrico para identificar relações entre as duas áreas de pesquisa, a partir do qual é possível afirmar que não há referencial teórico compartilhado entre as duas áreas. Em contrapartida, os resultados da análise de publicações indicam que as práticas de BPM estão relacionadas com os processos de negócio e com o desempenho da organização, e que muitas práticas de LCM estão sendo aplicadas nos processos de negócio, havendo assim uma relação indireta entre as abordagens. Além disso, foram identificadas oportunidades de contribuição relacionados a teoria e prática dessas abordagens: BPM possui um conjunto de práticas para a gestão e melhoria dos processos com base no planejamento estratégico, enquanto LCM possui elementos e práticas que visam a sustentabilidade do ciclo de vida de produtos. / Life cycle management (LCM) is an approach for continuously improve the sustainability performance in organizations and its products through the incorporation of life cycle thinking in business practices. However, there are few management instruments to support this approach. Aiming to meet this demand, the purpose of this study is to analyze the relationship of LCM with Business Process Management, which aims at continuous improvement of organizational activities. A systematic literature review was conduct to identify BPM and LCM definitions and practices, which were used to define BPM and LCM and to analyze the relationship between practices and business process. Additionally, a bibliometric study was conducted to identify relationships between the two areas and its results shows that there are no conceptual framework shared between two. In constrast, the results indicate that BPM practices are related to business processes and organizational performance, and that many LCM practices are being applied into business processes, thus having an indiredt relationship between approaches. In addition, opportunities related to theory and practice are indentified: BPM has a set of practices for the management and improvement of process based on strategic planning, while LCM has elements and practices aimed at sustainability of the life cycle of products.

Competitive industries in the manufacturing sector have a holistic Life Cycle Management (LCM) view of business practices. Life Cycle Assessment (LCA), which forms part of the LCM approach, is increasingly used as a decision support tool in the South African manufacturing industry. The Life Cycle Impact Assessment (LCIA) phase of the LCA tool has been standardised within the ISO 14000 family and aims to quantify the environmental impacts of economic activities. A number of LCIA methodologies have been developed in Europe, which can be applied directly when life cycle systems are assessed. The LCIA procedures that are most commonly used in the South African manufacturing industry include the CML, Ecopoints, EPS and Eco-indicators 95 and 99 procedures. The five European methods are evaluated based on the applicability of the respective classification, characterisation, normalisation and weighting elements for the South African situation. The evaluation and comparison is further based on a cradle-to-gate Screening Life Cycle Assessment (SLCA) case study of the production of dyed two-fold wool yarn in South Africa. Shortcomings are identified with the European methodologies in the South African context in terms of comprehensiveness and modelling approaches. A LCIA framework and calculation procedure, termed the Resource Impact Indicator (RII) model, is subsequently proposed for South Africa, which is based on the protection of four natural resource groups: water, air, land, and mined abiotic resources. A distance-to-target approach is used for the normalisation of midpoint categories, which focuses on the ambient quality and quantity objectives for the four resource groups. The quality and quantity objectives are determined for defined South African Life Cycle Assessment (SALCA) regions and take into account endpoint or damage targets. Following the precautionary approach, RIIs are calculated for the resource groups from conventional Life Cycle Inventories (LCIs). The calculation of the RIIs ensures that all natural resources that are important from a South African perspective are duly considered in a LCIA. The results of a LCIA are consequently not reliant on detailed LCIs and the number of midpoint categories that converge on a single resource group. The proposed model is evaluated with the SLCA wool case study. The case study establishes the importance of region-specificity, for LCIs and LCIAs. The proposed LCIA model further demonstrates reasonable ease of communication of LCIA results to decision-makers or managers. Subjective weighting values for the resource groups are also proposed, based on survey results from manufacturing industry sectors in the South African automotive value chain, and the expenditure of the South African national government on environmental issues. The subjective weighting values are used to calculate overall Environmental Performance Resource Impact Indicators (EPRIIs) when comparing life cycle systems with each other. The EPRII approach is applied to a specific LCM problem in the South African context, i.e. evaluating and comparing environmental performance for supply chain management purposes in the developing country context. Thereby, RIIs are provided for key Cleaner Production process parameters in the South Africa context: water usage, energy usage, and waste produced per manufactured product. / Thesis (PhD (Engineering and Technology Management))--University of Pretoria, 2005. / Graduate School of Technology Management (GSTM) / unrestricted

An initial analysis of sustainable project life cycle management methodologies’ current status highlighted that social and environmental aspects of sustainable development are not addressed effectively. An acceptable model aimed at addressing the various sustainable development aspects from a project management perspective is thus needed. This study’s main research objective was consequently to develop the different elements of such a model for social business sustainability. The research focused on the three main research questions discussed below. Which lifecycles should be considered when evaluating the project’s possible impacts? Projects implement or deliver certain products, which in turn, can produce other commodities sold by the company. The three lifecycles, i.e. project, asset and product, were studied to determine which lifecycles to consider when evaluating projects’ possible impacts. It was concluded that it is specifically the project’s deliverables and its associated products that have economic, social and environmental consequences. These life cycles must therefore be considered as part of the project life cycle when evaluating social impacts. What social business sustainability impacts or aspects should be considered in the project life cycle? A sustainable development framework that can be applied to projects directly to ensure their alignment with sustainable development does not exist at present. A social sustainability assessment framework as part of a sustainability assessment framework for operational initiatives was consequently developed and introduced. The social framework was verified and validated by means of case studies, a survey and a Delphi Technique case study to test the framework’s completeness and relevance. How should project management methodologies be adopted to ensure incorporation of social business sustainability? The research indicated that the various social aspects are addressed in different ways in the individual asset life cycle phase. The social criteria in the framework should therefore also be addressed in different ways in the project management methodologies. A Social Impact Indicator (SII) calculation procedure, based on a previously introduced Life Cycle Impact Assessment (LCIA) calculation procedure for environmental Resource Impact Indicators (RIIs), was developed as a method to evaluate social impacts in the project life cycle phases. Case studies in the process industry and statistical information for South Africa have been used to establish information availability for the SII calculation procedure. / Thesis (PhD (Engineering Management))--University of Pretoria, 2006. / Graduate School of Technology Management (GSTM) / unrestricted

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Increasing awareness of anthropogenic impacts on the planet has lead to efforts to reduce negative environmental impacts in product development for several decades. Benefits to companies who focus on sustainability initiatives have been put forth more recently, leading to many efforts to incorporate sustainability considerations in their product innovation processes. The majority of current sustainability considerations in industry constrain design space by emphasizing reduced material and energy flows across the product’s life cycle. However, there is also an opportunity to use awareness of sustainability to bring attention to new facets of design space and to drive innovation. Specifically there is an opportunity for product-service systems (PSS) to be a vehicle through which sustainability-driven innovation occurs. A framework for strategic sustainable development (FSSD) provides the basis for understanding sustainability in this work, and provides clarity with regard to how to think about sustainable products and service innovations. The “backcasting” approach included in this framework also provides insight into how incremental and radical approaches could be aligned within the product innovation working environment. This thesis explores how sustainability considerations can be better integrated into existing product innovation working environments in order to drive innovation processes within firms, with a specific emphasis on opportunities that occur as sustainability knowledge leads to innovation through a product-service system approach. It endeavors to contribute to both theory development within the emerging sustainable PSS design research area, and also to advance the state of practice within industry by connecting dots between the state of theory and the state of practice. Society’s opportunity to become more sustainable and industry’s desire for innovation in order to lead to or increase profitability are often in conflict. However, this thesis argues that knowledge of global social and ecological sustainability can be used to drive innovation processes, and that there are win-win opportunities that can often be achieved through a PSS approach. There is some, but not sufficient, support for the inclusion of sustainability considerations in the product innovation process, and even fewer tools to support the use of sustainability to drive innovation. In response, an approach to providing support that brings together the FSSD and various approaches to systems modeling and simulation is presented. Opportunities to use sustainability-friendly attributes of existing products through a PSS-approach are also presented.