Browsing by Author "Von Leipzig, Konrad"
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- ItemThe application of design criteria for locating a hub configured supply chain for a restaurant cluster in the Stellenbosch area(AOSIS Publishing, 2013-06-25) Struwig, Claudia B.; Ruthven, George A.; Von Leipzig, KonradENGLISH ABSTRACT: Restaurants, in general, utilise numerous suppliers. Normally they deliver on different days in the week and at different times during the day, logistically not an optimum approach. Not only does the current practice cause frequent interruptions, but by segregating the food supply chain unnecessary traffic is generated. This article investigated the need for developing a third party supplier hub, the best positioning of that hub and the most economical routes to the customers. With the aim of providing non-franchised restaurants with the necessary leverage to become market leaders, the hub is planned to only service the restaurants within the vicinity of the Stellenbosch area. In such a hub-configured supply chain, the suppliers would be delivering to the proposed hub, from where once-off deliveries to all the restaurants may be made on days and/or times determined by them. In order to investigate the benefits of providing such a hub structure, a systematic implementation approach was used. The first step was to do market research in order to establish the need for such a hub. That is, the viability of the hub from a restaurant’s perspective was established. The next step entailed the investigation of the design criteria needed in determining a favourable hub location. Four possible hub locations were identified. The Clark and Wright’s savings algorithm was then used to determine the optimal hub location and the feasibility of the results was verified with the aid of a global positioning system (GPS) device. The last steps followed involved the determination of an effective hub floor plan that may be utilised, possible products that can be supplied to the restaurants and the necessary assets needed to provide the hub’s service. Finally, by incorporating all these facets, a cost analysis was done to determine the hub’s profitability.
- ItemCluster development in the SA tooling industry(SAIIE, 2015) Von Leipzig, Konrad; Dimitrov, DimiterThis paper explores the concept of clustering in general, analysing research and experiences in different countries and regions, and summarising factors leading to success or contributing to failure of specific cluster initiatives. Based on this, requirements for the establishment of clusters are summarised. Next, initiatives especially in the South African tool and die making (TDM) industry are considered. Through a benchmarking approach, the strengths and weaknesses of individual local tool rooms are analysed, and conclusions are drawn particularly about South African characteristics of the industry. From these results, and from structured interviews with individual tool room owners, difficulties in the establishment of a South African tooling cluster are explored, and specific areas of concern are pointed out.
- ItemThe development of a performance measurement system for the South African container shipping industry(AOSIS Publishing, 2012-11-30) Hector, Taryn; Ruthven, George A.; Von Leipzig, KonradENGLISH ABSTRACT: Globalisation is dependent on efficient supply chains and a variety of transport systems. South Africa participates in the world’s economy with an extensive container shipping industry, as well as a road/rail/air distribution system. One of the aims of this research study was to develop a measurement system, or model, that may assist in measuring the performance of a container shipping service, from the time a ship arrives in the harbour, through the process in the container depot until the container arrives at the final customer for imports, and the other way round for exports. The objective was to develop a performance index that would assist management in assessing and/or improving the current system. It is a global phenomenon that inefficiencies cannot be eliminated by a single organisation; it requires the cooperation of all the parties in a supply chain.
- ItemAn empirical supply chain measurement model for a national egg producer based on the supply chain operations reference model(AOSIS Publishing, 2013-10-14) Pretorius, Christian; Ruthven, George A.; Von Leipzig, KonradENGLISH ABSTRACT: The management of a supply chain is both an offensive and defensive weapon that organisations can use to increase their competitive edge and capture a larger share of the market. In management science and supply chain management, multi-criteria decision making techniques have been used to solve a range of real-world problems. The problem is that many, if not most, companies in South Africa either do not have the required skills to use these decision-making techniques to improve or re-configure their supply chain, or they do not have a complete data set with which to model it effectively. In order to manage supply chains effectively, organisations at the very least need feedback on the performance of their entire supply chain. In this article, generic supply chain performance measures were used and a theoretical or empirical model was developed for the performance measurement of a national egg producer’s supply chain. It focused on a managerial program for the identification and management of their supply chain with recommendations for applying a measurement model. The overall performance of the supply chain as well as the five different performance attributes was presented to management in a dashboard format. This article could be used as a basis for future studies of supply chain performance measurement and the model could be used as a foundation for developing an improved version, not only for the egg industry, but for other industries as well.
- ItemInvestigating momentum on the Johannesburg Stock Exchange(Industrial Engineering, Stellenbosch University, 2011-09) Snyman, Hendrik A.; Von Leipzig, KonradThe paper examines if stock price momentum is a common trait amongst top performing shares on the Johannesburg Stock Exchange and whether individual investors can harness the relationship of momentum and return to create a profit. The viability of the phenomenon as an investment strategy was gauged by comparing annualised average returns of momentum shares, identified through both technical analysis as well as price performance momentum measures, against the market capitalisation weighted JSE All Share Index as well as against an un-weighted representation of the market. The results revealed a seemingly unmistakable co-dependence between momentum and return, with statistically significant trends being ever present. Applying the maximum taxes and trading costs revealed that the highest ranked momentum shares did indeed outperform both market benchmarks from the period of January 1990 to August 2009, suggesting the validity of the philosophy as an investment strategy.
- ItemMetacognitive learning : skills development through gamification at the Stellenbosch Learning Factory as a case study(Southern African Institute for Industrial Engineering, 2017) Henning, Mieke; Hagedorn-Hansen, Devon; Von Leipzig, KonradENGLISH ABSTRACT: South Africa has a high-cost, low-performance education system, which ultimately leads to unemployment and a skill shortage in the country. In order to bridge the skill shortage gap at a tertiary level, the Stellenbosch Learning Factory (SLF) was established. Learning factories involve experiential learning in a production environment through ‘learning by doing’. Gamification, one of the teaching methods used in the SLF, is investigated as a possible answer to South Africa’s educational problems. Learning factories can be used to train employees: the knowledge transfer resulting from real production conditions is favoured because process improvements can be implemented or practised without any real production downtime. The aim of this study was to determine the learning contribution of the games implemented at the SLF. This was accomplished by developing a three-dimensional matrix that employs a revised version of Bloom’s taxonomy to measure the learning success of the educational games at the SLF.
- ItemA strategic framework to utilise venture capital funding to develop manufacturing SMEs in South Africa(Southern African Institute for Industrial Engineering, 2014-08) Snyman, Hendrik Andries; Kennon, Denzil; Schutte, Cornelius S. L.; Von Leipzig, KonradSMEs contribute considerably to the national GDP and to private sector employment, but they struggle to gain access to the funding needed to support business sustainability and growth. Venture capital provides the necessary funding, but SMEs lack understanding of the business value curve utilised by financiers to gauge the risk-reward characteristics of an investment. Strategies need to convey how the business model will evolve in order to deliver on the strategic intent. A framework is proposed through which SMEs can develop a strategy aligned with investor requirements. As a case study, the framework is applied to the local tooling sector.
- ItemThe study and design of a national supply chain for the aerospace titanium components manufacturing industry(AOSIS Publishing, 2012-11-30) Van der Merwe, Lene; Ruthven, George A.; Von Leipzig, KonradTitanium’s strength-to-density ratio, corrosion resistance and high thermal compatibility makes it the perfect metal for aerospace. Titanium is for instance used for the structural airframe, seat tracks, engine components and landing gear of aircraft. The Boeing 787 that had its test flight in 2009 is one of the latest aircraft designs that incorporates a substantially higher percentage of parts manufactured from titanium due to the weight benefit. Titanium’s extensive use in aerospace applications ensures that the aerospace market is the main driver of titanium metal demand. South Africa is the second largest titanium producer in the world after Australia. The abundance of titanium in South Africa together with the growing demand has led it to be identified as a beneficiation priority in a collaborative government initiative, called Titanium Beneficiation Initiative (TBI). The purpose of this paper is to develop a supply chain model for the anticipated South African titanium component manufacturing industry.