6 research outputs found

    Modelling and Determining Inventory Decisions for Improved Sustainability in Perishable Food Supply Chains

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    Since the introduction of sustainable development, industries have witnessed significant sustainability challenges. Literature shows that the food industry is concerned about its need for efficient and effective management practices in dealing with perishability and the requirements for conditioned storage and transport of food products that effect the environment. Hence, the environmental part of sustainability demonstrates its significance in this industrial sector. Despite this, there has been little research into environmentally sustainable inventory management of deteriorating items. This thesis presents mathematical modelling based research for production inventory systems in perishable food supply chains. In this study, multi-objective mixed-integer linear programming models are developed to determine economically and environmentally optimal production and inventory decisions for a two-echelon supply chain. The supply chain consists of single sourcing suppliers for raw materials and a producer who operates under a make-to-stock or make-to-order strategy. The demand facing the producer is non-stationary stochastic in nature and has requirements in terms of service level and the remaining shelf life of the marketed products. Using data from the literature, numerical examples are given in order to test and analyse these models. The computational experiments show that operational adjustments in cases where emission and cost parameters were not strongly correlated with supply chain collaboration (where suppliers and a producer operate under centralised control), emissions are effectively reduced without a significant increase in cost. The findings show that assigning a high disposal cost, limit or high weight of importance to perished goods leads to appropriate reduction of expected waste in the supply chain with no major cost increase. The research has made contributions to the literature on sustainable production and inventory management; providing formal models that can be used as an aid to understanding and as a tool for planning and improving sustainable production and inventory control in supply chains involving deteriorating items, in particular with perishable food supply chains.the Ministry of Science and Technology, the Royal Thai Government

    Alignment of the supply and demand within a supply chain: A qualitative study

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    The dissertation "Alignment of supply and demand within a supply chain: a qualitative study” determines the causes of the misalignment between the supply and demand within a supply chain, with specific focus on Kraft Foods South Africa. The costs of a mismatch between supply and demand are growing in many industries. Companies have tried various approaches, however these approaches, while useful, have failed to address a number of the drivers of supply-demand mismatch. The literature study starts with an overview of supply chain management. The study covers the various concepts of supply chain management, the importance of supply chain performance, the challenges of managing supply chains, demand management, supply management, as well as the relationship between supply and demand. The literature study continues to cover the various concepts related to the alignment of supply and demand within a supply chain. The study covers the effects of the misalignment between supply and demand within a supply chain, traditional approaches to align supply and demand and the transformation to a more responsive organisation. The various approaches to decrease the supply and demand lead time gap are also discussed. The literature study concludes with an overview of the supply chain of Kraft Foods South Africa, as well as the global Kraft Foods organisation. The review covers the challenges, the sustainable growth plan, the organisational set-up, sources and product range, geographical layout, people, functions and technology involved in Kraft’s supply chain. The review concludes with an overview of the current alignment between supply and demand within Kraft Foods South Africa’s supply chain. Chapter five discusses the details of the research design and methodology that was followed in conducting the research. Chapter six indicates the findings of the structured interviews with the key players in Kraft Foods South Africa’s supply chain. Chapter seven makes certain recommendations for the supply chain of Kraft Foods South Africa that will assist in improving the alignment between supply and demand.Dissertation (MCom)--University of Pretoria, 2006.Business Managementunrestricte

    Development of a robust and resilient Supply Chain System for selected companies in Gauteng

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    Abstract: These days, in the extremely competitive nature of business, nearly every big business has to reap the benefits of investing in improvements of its supply chain. The beginning of the upgrades is considered together with the examination concerning profits and most organisations have addressed measures that a supply chain execution and monitor changes in order to drive the benefits of their business. While execution estimation is basic, most organisations either measure excessively or pay little attention to supply chain. Different weaknesses may incorporate; an excessive number of measurements, disconnected measurements, clashing measurements, obsolete measurements, temperamental information, and absence of possession, among others. Some organisations measure incorrect variables in their pursuit of their objectives. This is detrimental to the realisation of these objectives and this affects the organisation. Framework estimations lead to improved framework. "Estimation is the initial step that prompts control and in the long run to progress. In the event that you can't gauge something, you can't get it. On the off chance that you can't get it, you can't control it. On the off chance that you can't control it, you can't improve it" (Harrington, 2012)...M.Ing. (Quality and Operations Management

    A framework to measure supply chain management efficacy in humanitarian supply environments

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    Supply chain management in the for-profit commercial environment is a broad, far-reaching field of study, impacting on a society’s standard of living. Commercial supply chain management is the science of balancing customer service levels with least total costs. In other words, the for-profit supply chain management practitioner is concerned with customer service levels, consumer value, shareholder value, total cost optimisation and ultimately maximising long term sustainable return on investment. Commercial supply chain management differs from military supply chain management in that the latter also focuses on service delivery, but the cost is almost irrelevant. In military operations, successful results (winning the battle) far surpass the total cost parameter or the return on investment. One of the major differentiating factors between commercial supply chain management (CSCM) in the for-profit theatre and humanitarian supply chain management (HSCM) in the not-for-profit supply environments hinges on strategic intent and how to measure success. In CSCM, return on investment (ROI) is key and in HSCM, the ability to create impact becomes paramount. Regarding spend, both CSCM and HSCM are concerned with optimising operational spend, optimal utilisation of capital goods and infrastructure as well as minimising the cost of goods, works and services. Commercial supply chain managers want to spend as little as possible on operational expenses similarly to their humanitarian counterparts but humanitarian supply chain managers are also concerned about underspending of donor funded programming. Humanitarian programming often happens under difficult and dangerous circumstances. This requires a special cadre of professionals who are willing to serve the most vulnerable without exploitation and are able to deliver value often with limited or even broken infrastructure, unreliable supply and under insecure conditions. Humanitarian supply chain management leadership requires a DBA thesis balanced approach between long term strategic views whilst managing the short term outcomes. Also, humanitarian leadership needs to balance decision-making between long term strategic interventions and the ability, maturity and cost structures at functional and executional levels. This conundrum is the fundamental difference between commercial supply chain management and humanitarian supply chain management. Once one understands and respects these nuances, one can measure performance and reward appropriate corrective behaviour. Zig Ziglar once said: “If you aim at nothing, you will hit it every time”. The question that has been asked for so long has been “how to measure supply chain management efficacy in humanitarian supply environments?” This study addresses this question of developing a framework to measure supply chain efficacy in humanitarian supply environments with the view to create an enabling environment within which service levels could enhance the impact of donor funding whilst the needs of intended beneficiaries are better served. During field research, ten key focus areas and sixty-five supply chain management elements were identified. These sixty-five elements were tested via two surveys making use of the Delphi technique. Four of the sixty-five SCM elements were eliminated following the second survey due to high disagreement between the respondents, and a further two were eliminated based on expert opinion feedback from the respondents leaving fifty-nine elements being significantly important for inclusion in the framework. Three additional elements were identified by the respondents but not empirically verified and therefore not included in the proposed frameworks but could be included in future research. Fifty-seven of the sixty-five elements can be directly controlled by the SCM function. However, four of these fifty-seven elements were eliminated during the second survey and a further two were eliminated reviewing the feedback from respondents leaving fifty-one elements under the direct control of the SCM function

    Towards sustainable logistics and supply chain management

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    The 27th annual NOFOMA Conference in Molde, Norway, 3-5 June 2015, was hosted by Molde University College in Cooperation With NTNU - Norwegian University of Science and Technology. The Post Conference Proceedings consists of papers from the conference proceedings for which the author(s) have granted the copyright to NOFOMA 2015 as a part of the Nordic Logistics Research Network

    Towards sustainable logistics and supply chain management

    Get PDF
    The 27th annual NOFOMA Conference in Molde, Norway, 3-5 June 2015, was hosted by Molde University College in Cooperation With NTNU - Norwegian University of Science and Technology. The Post Conference Proceedings consists of papers from the conference proceedings for which the author(s) have granted the copyright to NOFOMA 2015 as a part of the Nordic Logistics Research Network
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