An integrated systems approach to risk management within a technology driven industry using the design structure matrix and fuzzy logic
- Authors: Barkhuizen, Willem Frederik
- Date: 2012-08-01
- Subjects: Value analysis (Cost control) , Risk management , Artificial intelligence , Fuzzy logic
- Type: Thesis
- Identifier: uj:8904 , http://hdl.handle.net/10210/5376
- Description: D.Ing. , “Innovation is the act of introducing something new” (Byrd & Brown, 2003). When companies are competing on the technology “playground” they need to be innovative. By analysis according to Byrd & Brown (Byrd & Brown, 2003) the “act of introducing”, relates to risk taking, and the “new” relates to creativity, and therefore these concepts, creativity and risk taking, in combination, are what innovation is all about. Risk management has become one of the greatest challenges of the 21st century, and one of the main components in innovation and the technology driven industry, intensifying the need for a systematic approach to managing uncertainties. During the development and design of complex engineering products, the input and teamwork of multiple participants from various backgrounds are required resulting in complex interactions. Risk interactions exist between the functional and physical elements within such a system and its sub-systems in various dimensions such as spatial interaction, information interaction etc. The relationships are of a multi-dimensional complexity that cannot be simplified using the standard task management tools (Yassine A. A., 2004). To find a meaningful starting point for the seemingly boundless subject of risk management the research takes a step back into the basic definition of risk management and follows an exploratory research methodology to explore each of the risk management processes (risk assessment, risk identification, risk analysis, risk evaluation, risk treatment and risk monitoring and review) and how these processes can be enhanced using the design structure matrix (DSM) and fuzzy logic thinking. The approach to risk management within an organisation should be seen as a holistic approach similar to the total quality management process, providing the ii opportunity to incorporated risk management during the design process as a concurrent task. The risk management model is then developed concurrently (during the design phase) using product development methodologies such as conceptual modeling and prototyping, and ultimately the prototype is tested using a case study. Finally resulting in a clustered DSM providing a visual representation of the system risk areas similar to the methodology used in Finite Element Analysis (FEA). The research combines alternative system representation and analysis techniques (Warfield, 2005), in particular the design structure matrix, and fuzzy logic to quantify the risk management effort neccessary to deal with uncertain and imprecise interactions between system elements.
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Assessment of value added to engineering projects
- Authors: Mosweu, Collen
- Date: 2012-08-15
- Subjects: Value analysis (Cost control) , Systems engineering , Reengineering (Management) , Project management
- Type: Thesis
- Identifier: uj:9357 , http://hdl.handle.net/10210/5796
- Description: M.Ing. , The topic of this research project is 'Assessment of value added to engineering projects'. In this dissertation the aim is to introduce the reader to the methodologies, which can be used to add value to engineering projects. Engineering has to do with the application of science in solving problems, while technology is the study or use of the mechanical arts or applied sciences. The author saw it fitting to combine value engineering principles, systems engineering, business process re-engineering, technology scanning and innovation technology management principles to base this dissertation on the research of the combined principles. The intention of this research is not to replace the current project management or processes on how to manage and create value in engineering projects. The research merely identifies an issue and proposes a process as an addition to the current processes rectifying this 'lack of value' issue.
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Quantifying the life cycle cost of a high pressure grinding roll in a mineral processing plant
- Authors: Buthelezi, Njabulo S.E.
- Date: 2018
- Subjects: Mineral industries - Costs , Value analysis (Cost control) , Product life cycle , Life cycle costing
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/269365 , uj:28616
- Description: M.Phil. (Engineering Management) , Abstract: The accelerated advancement of technology and the global economic crisis has prompted the need to improve equipment efficiency, reduce unpredicted equipment failures and operating costs in order to improve production and profitability. An emerging research trend around 2008 showed growing concerns on stringent availability performance constraints, specifically system reliability. Increasingly, further attention is directed to Life Cycle Cost (LCC) of equipment with an objective of identifying key factors affecting both system availability and LCC. Furthermore, the trend extended to focus more on understanding the equipment’s operational and maintenance costs which are driven by the system and component specific maintainability as well as required replacement time. This also include the understanding of the LCC concept, available LCC models, implementation of LCC analysis within an organization and the benefits thereof, as well as ways of quantifying LCC through the use of existing calculation formulae. It also echoed the importance of the data availability and quality which provides a solid foundation to the success of the LCC analysis. Hence, the aim of this research is to quantify the LCC as well as to determine the major cost drivers of the High Pressure Grinding Roll (HPGR) during its operating and maintenance life cycle for a period of four (4) years using existing LCC models. The research is presented in the form of a case study which is selected as an appropriate method of investigating empirical research for a real life problem or situation. The case study is based on the HPGR which has been in operation since 2007. The HPGR is currently installed and operating within a mineral processing circuit for one of the largest platinum group subsidiaries in the world. In order to address the above research objectives, an in-depth investigation on the operating and maintenance cost, intervals, break-down occurrences, spare parts supply, overhauls, archive documents and consumables was necessary. These values were then used an inputs into the derived model for processing and yielding outputs. From the results, the LCC was quantified for a period of four (4) years. The results indicate that the LCC during operation and maintenance phase was significantly higher than the acquisition cost. Furthermore, the result also indicate that the LCC which considered time value of money portrayed a linear increase and is lower than the LCC calculated based on the actual costs. This is possible due to a number of reasons: the unexpected number of equipment failures, maintenance strategies and the fact that LCC based time value of money does not consider imperfect maintenance conditions. It is evident that maintainability and reliability management must be regarded as a vital part of a corporate strategy. Successful implementation of this strategy is reliant on the “buy-in” of senior management which in turn will ensure organizational market share and competitive advantage is maintained.
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The sustainability of life cycle costs in a systems engineering process of a 21st century reliability engineering environment
- Authors: Maoto, Reboneng Mothupi
- Date: 2013-05-28
- Subjects: Sustainable development , Life cycle costing , Systems engineering , Reliability (Engineering) , Value analysis (Cost control) , Engineering economy
- Type: Mini-Dissertation
- Identifier: uj:7562 , http://hdl.handle.net/10210/8424
- Description: M.Phil. (Engineering Management) , With the current global political and economic environments, there is a lot of economic fluctuation and uncertainty in the world markets. This results in the instability of prices for goods and other products. And since we operate in a globalised era, this has a direct impact on the life cycle costs of many systems and products. Experience has indicated that a large portion of the total cost of many systems is as a direct result of activities associated with the operation and support of these systems and products, while the commitment of these costs is based on decisions made in the early stages of the system life cycle (Blanchard, 1990:505 & Blanchard, 2004:24-26). Further, the various costs associated with the different phases of the life cycle of a system or a piece of equipment are interrelated. Thus, in addressing the economic aspects of a system, one must look at the total cost in the context of the overall life cycle, particularly during the early stages of conceptual design and advanced system planning. Life cycle cost, when included as a parameter in the systems engineering process, provides the opportunity to design for economic feasibility. To address these aspects the following questions are answered through the research: What are life cycle costs and what are the benefits of costing them? When and where are costs incurred in a systems life cycle? What are the key variables in establishing life cycle costs? How can these variables be better defined to ensure that the life cycle costs are sustained through the entire life of a system? Can the engineering inflation be defined and be used instead of the general inflation rate? Now the challenge is that with the fluctuating economic conditions mentioned earlier, one cannot predict the life cycle costs of a system as closely accurate as is required. The proposed research focused on identifying sustainable measures to ensure that life cycle costs remain relevant through the lifespan of a system or equipment.
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Value engineering for improvement of capital projects
- Authors: Van Zyl, Gerhardus Johannes
- Date: 2012-09-04
- Subjects: Value analysis (Cost control) , Project management
- Type: Thesis
- Identifier: uj:3524 , http://hdl.handle.net/10210/6911
- Description: M.Phil. , To achieve growth, most corporations invest a large portion of their turnover in new business ventures or in expanding current operations. These initiatives imply capital and thus a return is essential in order to ensure survival. Research indicates that capital projects seldom realize their full potential. The value that is released by a project is often unacceptably lower than the value that was initially forecast and for which the board granted approval. Furthermore, a number of projects achieved radical improvement within a relatively short period of time, when they embarked on an initiative focusing on improving the project. This indicates that, due to the relatively low cost and the rather large prize at stake, it is imperative to investigate and actively seek improvement potential. Value Engineering proves to be a methodology capable of unleashing these otherwise hidden opportunities. Three basic steps describe the value engineering process: analysis to understand the project; design to find the optimum or a better solution; and the implementation thereof. Before a team can embark on an improvement initiative an initiation study will determine the target, required focus of the exercise and set up an enabled team. This study also describes the integration of value engineering with the existing processes using a case study. In order for value engineering to work, skilled members are required, the initiative has to be timed and complement the existing processes.
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Value engineering within a changing telecommunication market
- Authors: Geyser, Deon
- Date: 2011-11-30
- Subjects: Consumer satisfaction , Strategic planning , Organizational learning , Value analysis (Cost control) , Reengineering (Management) , Telecommunication management , Organizational change
- Type: Thesis
- Identifier: uj:1763 , http://hdl.handle.net/10210/4117
- Description: M.Ing. , The telecommunications industry worldwide is experiencing massive downsizing activities as the mobile telecommunications market is flooded with mobile operators. In Europe and other leading countries world wide, fixed line operators are able to cover more than 90% of the population of the country and there is not such a necessity for a mobile service as in a country such as South Africa, where less than 50% of the population is connected to a fixed line operator. Together with many investors, planning to create substantial returns on investments saturated the communication market in these worldleading countries. When mobile data transfer, in the form of GPRS (General Packet Radios Services) and UMTS (Universal Mobile Telecommunication System), was developed it was estimated that the amount of mobile data transferred (via mobile operators) per annum would exceed the amount of data transferred by normal fixed line transport (fixed line operators). Many mobile cellular operators worldwide have invested in these technologies but their ROI (Return on Investment) is not nearly as good as was estimated in the initial feasibility study of the technologies. Together, these issues have had a negative impact on all the world leading mobile communication infrastructure suppliers, which had to downsize to accommodate the decrease in world business. Only 3rd world countries (such as in Africa) are still expanding their mobile networks and are creating some business opportunities for the world leading suppliers, but it is unfortunately not sufficient to sustain the current business. With the initial roll out of GSM (Global system for mobile communication) network infrastructure suppliers could ask what they want for the equipment and services supplied, as these were hard to imitate, but as the market grew, more competitors were able to meet their standards in equipment quality and better the price and service.
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