Browsing by Author "Dondofema, Richmore Aron"

Now showing 1 - 5 of 5
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    Application of lean principles in the South African construction industry
    (Southern African Institute for Industrial Engineering, 2019-11) Maradzano, Isabellah; Dondofema, Richmore Aron; Matope, Stephen
    ENGLISH ABSTRACT: South Africa is a developing country that invests billions of rands annually in the construction industry. This industry consumes resources and, inevitably, waste is generated during the process. Although numerous approaches have been developed to improve quality, efficiency, and effectiveness in this industry, lean principles offer the ability to minimise and/or eliminate non-value adding work, thus increasing value for the client. This paper highlights the lean construction tools currently used worldwide, and the benefits of adopting lean construction. The study surveyed publications on the application of lean principles in the construction industry, and identified tools yet to be implemented in the South African construction industry with specific reference to electrical and mechanical engineering services. The study used a systematic review methodology to identify different lean construction concepts, and developed a lean implementation framework. The framework was then evaluated using a local case focusing on electrical and mechanical engineering services in the construction industry. The improved framework after evaluation consists of eight steps.
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    A congruence analysis of innovation platforms from the innovation ecosystems and value chains perspectives
    (Stellenbosch : Stellenbosch University, 2021-12) Dondofema, Richmore Aron; Grobbelaar, Sara Saartjie; Herselman, Marlien; Stellenbosch University. Faculty of Engineering. Dept. of Industrial Engineering.
    AFRIKAANSE OPSOMMING: Geleenthede moet in Suid-Afrika se landelike gemeenskappe geskep word vir die burgers om ten volle deel te neem aan die land se ekonomiese, sosiale en politieke lewe, ten einde armoede te oorkom. Die grootste uitdaging vir landelike ontwikkeling in Suid-Afrika is die marginalisering van die armes. Mense moet toegang hê tot basiese dienste van hoë gehalte wat hulle in staat stel om goed gevoed, gesond en toenemend vaardig te wees. Die Nasionale Ontwikkelingsplan (NOP) 2030 erken dat landelike ekonomieë deur die landbou ondersteun moet word. Die rol van innovasie en die belangrikheid daarvan om verbeterde dienste en volhoubare ontwikkeling te bewerkstellig, word algemeen erken en is ook deur die SDG9 as 'n prioriteit geïdentifiseer in die Doelwitte vir Volhoubare Ontwikkeling. Innovasie kan ekonomiese groei en indiensneming ondersteun, lewensonderhoud op voetsoolvlak skep en regeringsprestasies en dienslewering verbeter. Hoewel innovasie nie die enigste faktor is wat ekonomiese groei, industrialisering en inklusiewe ontwikkeling bevorder nie, bly dit 'n beduidende en belangrike katalisator tot ekonomiese groei. Innovasie kan die ontwikkeling van Suid-Afrika asook die burgers se lewensgehalte verbeter, veral in landelike en arm gemeenskappe. Daar is 'n toenemende belangstelling in die uitbreiding van innovasie as konsep en om innovasie vir inklusiewe ontwikkeling (innovasie tot maatskaplike voordeel en die openbare belang) in Suid-Afrika, in te sluit. Die openbare sektor moet 'n instaatstelling van innovasie vir inklusiewe ontwikkeling word. Innovering vir 'n inklusiewe ontwikkelingsbenadering behels die uitbreiding van die verskeidenheid belanghebbendes en die verdieping van hul beraadslagende beplanningsbetrokkenheid. Innovasieplatforms wat ruimte bied vir samewerking met verskeie belanghebbendes, is nodig om landelike gemeenskappe te dryf om die NDP 2030-doelwitte te bereik. Hierdie studie het bygedra tot die wetenskaplike gesprek deur 'n analitiese sintesekaart vir innovasieplatforms te ontwikkel vanuit die waardekettingperspektief en die innovasie- ekosisteemperspektief. Die studie het gefokus op die funksionering van innovasieplatforms. Die studie is gelei deur die metodologie van kongruensie-analise wat deur Blatter (2012) ontwikkel is. Kongruensie- analise laat konseptuele verfynings toe met 'n hoë geldigheidsvlak oor 'n klein aantal gevalle. Dit word bereik deur spesifieke stellings en waarneembare afleidings uit abstrakte teorieë te interpreteer. Die benadering is teoriegerig en gebruik gevallestudies om insiggewende bydraes te lewer. Blatter (2012) se kongruensie-analisemetodologie kom tekort vir die vereistes van hierdie studie en dit moes uitgebrei word om elemente uit Jabareen se metode van konseptuele raamwerkontwikkeling te betrek wat 'n sistematiese literatuuroorsig en aktiwiteitsanalise-metode insluit. Die keuse van gevallestudies is gedoen deur gebruik te maak van gemaksteekproefneming, en die kongruensie-analise is op Vrugte Suid Afrika-innovasieplatform en op die Digital Doorway-innovasieplatform gedoen. Die studie het analitiese pluralisme gebruik om nuttige insigte te verkry en innovasieplatforms beter te verstaan. Besprekings uit hierdie studie ondersteun dat die perspektief van die innovasie-ekosisteem asook die perspektief van die waardeketting, beide belangrike analitiese perspektiewe in innovasieplatforms is. Die twee perspektiewe bring verskillende insigte in die geval waar dit toegepas word op dieselfde gevallekontekste, soos deur hierdie studie aangedui. Ons sien ook dat die insigte wat deur elke lens bewerkstellig word, verskillende bevindinge vir twee gevallestudies uit verskillende kontekste (dit wil sê landbou- en landelike ontwikkelingsektore in Suid-Afrika) uitlig.
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    Development of a continuous improvement framework for a small scale steelmaking company
    (Stellenbosch : Stellenbosch University, 2018-03) Dondofema, Richmore Aron; Matope, Stephen; Akdogan, G.; Stellenbosch University. Faculty of Engineering. Dept. of Industrial Engineering.
    ENGLISH ABSTRACT: The South African steelmaking industry is currently sailing through a turbulent economic period characterised with commodity price instability and competition from European and Asian markets. This research study focuses on creating a production cost advantage for a local steelmaking organisation through the implementation of a continuous improvement (CI) framework. Implementing CI activities focuses on product value creation by systematic identification and elimination of process waste in the production process on a continuous basis. Through a systematic literature review on the applications of lean manufacturing in South Africa, the research identified that there was limited application of continuous improvement techniques in steelmaking sector. The study further investigated the development of the South African steel industry and applications of Industrial Engineering (IE) principles to the industry. Findings of this review buttressed the absence of IE systematic research for steelmaking in South Africa. To understand continuous improvement, the student used conceptual framework analysis (CFA), a non-deterministic research tool that provides a method to conceptualise a specific subject. The identified concepts of continuous improvement are: CI process management, organisational infrastructure and supportive framework, and CI techniques. These three concepts were used to construct a CI implementation framework for Unica Iron and Steel Company in Hammanskraal, Pretoria. The implementation framework consists of a cycle with six CI process management steps which include process audit, identification of areas of improvement, improve, optimise, sustain and review. The framework is based on the following CI techniques: Lean Manufacturing, Toyota Production System, Six Sigma and Theory of Constraints. To successfully implement CI activities the organisation should have proper channels of communication between line employees, supervisors and operational managers as organisational infrastructure and supportive framework aspects. To assist in the validation of the CI implementation framework, Technomatix simulation software was used. From the results obtained through simulation, the first improvement cycle revealed 78% improvement in throughput per shift.
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    Lean applications : a survey of publications with respect to South African industry
    (Southern African Institute for Industrial Engineering, 2017) Dondofema, Richmore Aron; Matope, Stephen; Akdogan, Guven
    ENGLISH ABSTRACT: South African industry faces immense global competition from developed countries such as Germany probably because of the adoption of lean manufacturing techniques by the latter. This study is a survey on publications concerning implementation and adoption of lean manufacturing in South Africa. To assess South Africa with regards to research publications on lean manufacturing, a benchmark exercise was conducted with Germany for the period 2014 to 2015. The study concludes by highlighting the gaps identified during this survey and recommendations.
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    South African iron and steel industrial evolution : an industrial engineering perspective
    (Southern African Institute for Industrial Engineering, 2017) Dondofema, Richmore Aron; Matope, Stephen; Akdogan, Guven
    ENGLISH ABSTRACT: The paper focuses on the evolution of the South African iron and steel industry from the industrial engineering perspective. The earliest ironmaking in South Africa dates to the fifth century CE; but the major evolution of the industry began in 1882 and, by the year 1934, steel production from native ore was in full swing. The study highlights the major developments in South Africa’s iron and steel industry, and ends by exploring the extent of the application of industrial engineering techniques to published research into the steel industry.