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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Defect in the South African construction industry

Le Roux, Martyn January 2012 (has links)
Lack of quality in the South African construction industry is causing various problems for different stakeholders. The causes of this lack in quality are due to various different attributes. Corruption has become one of the leading causes with regards to lack of quality. Quality assurance can mitigate or eliminate defects through the implementation of a quality management system. Defects manifest primarily through cracking, dampness, detachment, and water leaks. Defects are categorized as structural, subsidence, acoustic and thermal. In terms of time, defects are either patent or latent, and can be discovered through observation, inspection and various tests. The causes of defects are ultimately due to error or omission, either during design or during the construction phases. Defects may also result due to procurement related factors, such as appointment of incompetent contractors. The result of defects is customer dissatisfaction, rework and disputes. Non-conformance to requirements results in rework and this in turn contributes to time and cost overruns. The aim of this research was to investigate the greatest cause that leads to defects in houses; the most common type of defect; and why projects fail in term of project management terms (due to defects). Results of quantitative research amongst professionals within the construction industry in the Western and Eastern Cape of South Africa as well as literature that has been reviewed form the basis of this study. Architectural practices, consulting engineering practices, and general building contractors were selected on a random sample basis, and surveyed using an online questionnaire. The study revealed that inadequate artisan skills is the biggest cause leading to defects in houses, and that cracks are the most frequent type of defect occurring. Projects fail in project management terms because of defects as the construction time of the projects are increased. The study revealed that construction related causes of defects dominate over design related causes. This study should be of value to both construction industry professionals as well as their clients.
2

The impact of quality assurance systems on the operational performance of laboratories

Ratsoeu, Ellen 30 May 2013 (has links)
M.Tech. (Operations Management) / It has become a trend for organisations to implement and certify quality systems. The most common quality system that organisations currently implement is ISO 9001. Certification to ISO 9001 has in recent times been used as a marketing tool to enter new markets. Nowadays, customers expect their suppliers and potential suppliers to be certified to ISO 9001. It has become a primary requirement for doing business, and customers now demand it. There have been various studies conducted to establish the advantages of ISO 9001 and its impact on organisational performance. Laboratories are no exception to this developing trend. They are implementing laboratory quality standards like ISO 17025 and the Organisation for Economic Cooperation and Development Good Laboratory Practice (OECD GLP). Some laboratories are now applying for certification of compliance to laboratory standards. Implementing and certifying laboratory systems is an exercise that comes at a cost. The exercise is demanding in terms of human resources, time and capital. There has not been a study conducted to evaluate the impact of these systems on the operational performance of laboratories. This is the reason that resulted in identification of the need to conduct the study. A qualitative research approach was pursued in conducting the study, where the researcher investigated the impact of laboratory quality standards on the operational performance of commercial and non-commercial laboratories. Operational performance in this study is defined as health and safety; supplier selection and performance; human resources; customer satisfaction and profitability. Data was collected through interviews, and was then summarised, and analysed in order to address the research problem. Based on the data collected, it was concluded there is no notable difference in the performance of laboratories with or without quality assurance systems such as ISO 17025 and OECD GLP.
3

Impact of ISO 9000 certification on quality management practices among SMEs in the Western Cape, South Africa

Dase, Bonginkosi January 2016 (has links)
Thesis (MTech (Quality))--Cape Peninsula University of Technology, 2016. / The study has been carried out on impact of implementing ISO standards on SMEs to seek general evaluation of its benefits. The purpose of this paper is to outline the benefits of ISO implementation on South African small- and medium-sized enterprises (SMEs). The SME sector is the backbone of developed economies, which is regarded as the engine of growth for economies all over the world. For developing countries, SMEs often offer the only realistic prospects for increases in employment since they employ the largest percentage of the workforce population. With the trend towards global market orientation and trade liberalisation, SMEs are moving towards implementing quality systems. The empirical study aims to explore current implementation of quality management tools and advanced improvement techniques in the Western Cape SMEs, in order to understand what factors impact on how quality control is managed. Two main categories are analysed, namely tangible and intangible. This study will assist other SMEs in developing countries on ISO 9000 implementation. This study is restricted to small and medium-sized companies in South Africa implementing ISO system and other quality tools or techniques. Data collection of this study is done based on a combination of survey questionnaires and interviews with managers, supervisors and general staff.
4

Development and validation of stabilized whole blood samples expressing T-cell activation markers as quality control reference material

Louw, Anne-Rika 03 1900 (has links)
Thesis (MScMed)--Stellenbosch University, 2008. / ENGLISH ABSTRACT: Introduction: Flow cytometry has progressively replaced many traditional laboratory tests due to its greater accuracy, sensitivity and rapidity in the routine clinical settings especially clinical trails. It is a powerful tool for the measuring of chemical (the fluorochrome we add) and physical (size and complexity) characteristics of individual cells. As these instruments became major diagnostic and prognostic tools, the need for more advanced quality control, standardized procedures and proficiency testing programs increased as these instrumentations and their methodology evolve. Minor instrument settings can affect the reliability, reproducibility and sensitivity of the cytometer and should be monitored and documented in order to ensure identical conditions of measurement on a daily basis. This can be accomplished by following an Internal Quality Assurance (IQA) and/ or External Quality Assurance (EQA) program. Currently there are no such programs available in South Africa and poorer Africa countries. HIV is a global concern and the laboratories and clinics in these places are in need of such IQA programs to ensure quality of their instrumentation and accurate patient results. Quality assurance programs such as CD Chex® and UK Nequas are available but due to bad sample transport, leave the receiving laboratories with nightmares. It would be best if there was a laboratory in South Africa that could provide the surrounding laboratories with stabilized whole blood samples that can be utilized as IQA. The transport of these samples can be more efficient due to shorter distance and thus the temperature variations limited. Aims and Objectives: The aim of Chapter one is to familiarize the reader with general terminology and concepts of immunology. Chapter two describes in detail the impact stabilized whole blood had on clinical immunology concerning Quality Control and Quality Assurance. The objective of this study is to stabilize whole blood with a shelf life of greater than 30 days to serve as reference control material for South African Immunophenotyping. It is further an objective to use these in-house stabilized control samples for poorer African countries as Internal Quality Assurance reference material. It is a still further objective to stimulate various lymphocyte subsets to express activation antigens and then stabilize these cells for more specialized immunological test and can serve as a QC for those required samples. Study design: In Chapter three, the method currently used to stabilize whole blood was modified. The stability of different concentrations of a first stabilizing agent (Chromium Chloride hexahydrate) was investigated. Incubation periods and concentrations of paraformaldehyde as second stabilizing agent were investigated. Blood samples from healthy individuals (n=10) were stabilized and monitored for the routine HIV phenotypic surface antigens over a period of 40 days. These samples (n=10) were compared on the Becton Dickinson Biosciences (BD) FACSCalibur™ versus BD FACSCount™ instrumentation. Blood samples (n=3) were stabilized and monitored to identify phenotypic cell surface molecules for as long as possible. They were quantified on both flow cytrometric instruments. In addition, these stabilized samples (n=3) were investigated as control blood for calibration purposes on the BD FACSCount™ instrument. In Chapter four, lymphocytes were isolated and activated with various stimuli to express sufficient activation antigens such as CD25, CD69, HLA-DR and CD40 Ligand on the T helper cell surfaces. These activated antigens were analyzed on the BD FACSCalibur™ and further stabilized to serve as possible IQA samples in future. Results: In Chapter three, the ten individual stabilized samples had non-significant P values (P > 0.05) for CD3, CD4 and CD8 percentages and absolute values comparing day 3 until day 40. Comparing the BD FACSCalibur™ versus BD FACSCount™, resulted in a R2 = 0.9848 for CD4 absolute values and a R2 = 0.9636 for CD8 absolute values. Stabilized blood samples (n=3) were monitored for routine HIV phenotypic markers until day 84. The cells populations were easily identifiable and could be quantified on both BD FACSCalibur™ and BD FACSCount™ instruments. In Chapter four; for the activation study purposes, activated T helper lymphocytes expressed approximately 25 to 35% CD40 Ligand cell surface molecules. The stimulant of choice was Ionomycin at a 4μM concentration. Cells were incubated for four hours at 37 degree Celsius in a 5% CO2 environment. For CD69 surface expression, 6 hour incubation was optimum. The stimulus of choice in this case was 4μM Ionomycin which induced 84.21% CD69 expression in the test samples. For CD25 expression; 6 hour incubation with PHA resulted in approximately 43% of CD25 expression. For HLA-DR surface expression; 6 hour incubation with PHA resulted in approximately 43.32% of HLA-DR expression. Activated lymphocytes expressing CD40 Ligand showed stability until day 23. Activated Lymphocytes expressing CD69, CD25 and HLA-DR were stabilized in the same manner and stability could be achieved until day 16. Conclusion: This thesis was related to the preparation of control samples (IQA) designed to simulate whole blood having defined properties in clinical laboratory situations. In future kits can be developed with a low, medium and high control sample for the various immunological phenotypic determinants. Another kit can be compiled where various activation markers can be identified, quantified with a “zero”, low and high control. These whole blood IQA kits and “activation IQA kits” can be implemented for training of newly qualified staff, competency testing of staff, method development, software testing, panel settings and instrument setting testing. Control samples ideally must have a number of properties in order to be effective. For instance stability during storage times, preferably lasting more than a few weeks, reproducibility and ease of handling. These will provide the information on day-to-day variation of the technique or equipment which will enhance accuracy and improve patient care. / AFRIKAANSE OPSOMMING: Inleiding: Vloeisitometrie tegnologie het verskeie tradisionele laboratorium toetse vervang as gevolg van beter akuraadheid, sensitiwiteit en vinniger beskikbaarheid van resultate in ‘n kliniese omgewing, veral kliniese proewe. Vloeisitometrie is ‘n kragtige tegniek om chemiese (fluorokroom byvoeging) en fisiese (sel grote en kompleksiteit) karakter eienskappe van individuele selle te meet. Met die toename in gebruik en gewildheid van hiedie instrumente, neem die behoefde toe vir gevorderde kwaliteit kontroles, gestandardiseerde prosedures, met profesionele toets programme tesame met metode ontwikkeling. Klein verstellings aan instrument parameters beinvloed die betroubaarheid, herhaalbaarheid en sensitiwiteit van ‘n sitometer en moet gemonitor (en dokumenteer) word om identiese kondisies van leesings op ‘n daaglikse basis te verseker. Dit kan bereik word deur in te skakel met ‘n interne kwaliteits versekerings program [IQA: “Internal Quality Control”] en/of ‘n eksterne kwaliteits versekerings program [EQA: “External Quality Control”] te volg. Op die oomblik is daar geen sulke kwaliteits versekerings programme in Suid Afrika en/of in die verarmende Afrika lande beskikbaar nie. MIV is ‘n wêreldwye bekommernis en laboratoriums en klinieke in hierdie gedeeltes van die land verlang ‘n dringende behoefdte vir sulke “IQA” programme om kwaliteit van instrumentasie en akkurate pasiënt resultate te verseker wat tot beter behandeling van pasiënte lei. Kwaliteit versekerings programme soos “CD Chex®” en “UK Nequas” is beskikbaar, maar baie probleme met verwysing na monster integriteit as gevolg van tydsame vervoer en aflewering kondisies word hiermee geassosieër. Die behoefte het ontstaan vir ‘n laboratorium in Suid Afrika wat direk die omliggende laboratoriums, hospitale en klinieke kan voorsien met gestabiliseerde blood monsters wat gebruik kan word as “IQA”. Die vervoer en aflewerings kondisies van hierdie monsters sal aansienlik verbeter as gevolg van die korter aflewerings afstand wat direk die beperkte temperatuur wisseling beinvloed. Doel van studie: Die doelwit van hoofstuk een is om vir die leser ‘n inleiding te gee tot terminologie en konsepte van immunologie en die immune sisteem. Hoofstuk twee beskyf die impak wat gestabiliseerde heelbloed het op die kliniese immunologie met betrekking tot kwaliteit beheer en kwaliteit versekering. Die doelwit van hierdie studie is om heelbloed te stabiliseer sodat die rakleeftyd meer as 30 dae is en sodoende as verwysings-materiaal kontroles vir Suid Afrikaanse immunofenotipering kan dien. Dit is ‘n verdere doelwit om hierdie tuis-gestabiliseerde kontrole monsters te gebruik as “IQA” verwysings materiaal in verarmende Afrika lande. Die doelwit van hoofstuk vier is om limfosiete te stimuleer om verskeie aktiverings merkers uit te druk op hul selmembrane en dan te stabiliseer en dié te gebruik as Kwaliteits Kontroles vir die meer gespesialiseerde immunologiese toetse. Studie ontwerp: Hoofstuk drie beskryf ‘n aangepaste en verbeterde metode van heel bloed stabiliseering. Stabiliteit word ondersoek in ‘n verskyndenheid konsentrasies van ‘n primêre stabiliseerings agent (chromium chloried heksahidraat) en inkubasie periodes met paraformaldehied as tweede stabiliseerings agent word deeglik gedokumenteer. Bloedmonsters van gesonde indiwidië (n=10) was gestabiliseer en gemonitor vir roetine MIV membraanoppervlak antigene oor ‘n periode van 40 dae. Hierdie monsters (n=10) was gelees en geanaliseer op ‘n BD FACSCalibur™ en vergelyk met ‘n BD FACSCount™ vloeisitometer instrument. Drie gestabiliseerde heelbloed monsters (n=3) was gemonitor vir ‘n periode vir so lank moontlik die fenotipiese selmembraan molekules identifiseerbaar was en die kwantiteit bepaalbaar was. Hierdie drie monsters was gemeet op beide instrumente. As ‘n addisionele doelwit, was hierdie drie gestabiliseerde monsters ondersoek om as moontlike kalibrasie materiaal (verteenwoordig ‘n normale bloedmonster) te dien vir die BD FACSCount™ instrument in die oggende voor pasiënt monsters gelees kan word. In hoofstuk vier was limfosiete geϊsoleer en geaktiveer met ‘n verskyndenheid stimulante om optimale aktiveerings-antigene uit te druk op T helper selmembrane (byvoorbeeld CD25, CD69, HLA-DR en CD40 Ligand). Hierdie geaktiveerde monsters was geanaliseer op die BD FACSCalibur™ en daarna gestabiliseer. Na stabilisasie van die geaktiveerde limfosiet monsters was dit gemonitor oor ‘n tydperk so lank moontlik data plotte leesbaar en selpopulasies identifiseerbaar was. Hierdie monsters kan dien as ‘n moontlike “IQA” toets stel vir ‘n meer gespesialiseerde immunologiese aktiveerings kontrole doeleindes. Resultate: In hoofstuk drie; tien individiële gestabiliseerde heelbloed monsters het gedui op geen-beduidende P waardes (P > 0.05) vir CD3, CD4 en CD8 persentasies en absolute waardes; gemeet vanaf DAG 3 vergelykbaar tot-en-met DAG 40. Met korrelasie statistiek en vergelyking van die BD FACSCalibur™ met die FACSCount™ instrumente, is die volgende opgemerk; R2 = 0.9848 vir die CD4 absolute waardes en ‘n R2 = 0.9636 vir die CD8 absolute waardes. Drie gestabiliseerde monsters (n=3) was gemonitor vir MIV roetine fenotipeering tot en met DAG 84. Die selpopulasies was duidelik identifiseerbaar en die kwantitatief meetbaar op albei instrumente (BD FACSCalibur™ en BD FACSCount™). Hoofstuk vier: geaktiveerde T helper lymphosiete het 25 – 35% membraan CD40 Ligand uitgedruk op hul selmembrane. Die stimulant van keuse was ionomysien teen ‘n optimale konsentrasie van 4μM. Die optimale inkubasie tydperk was vier ure by 37°C in 5% CO2 kondisie. Ses uur inkubasie in 4μM ionomysien by 37°C in ‘n 5% CO2 omgewing was optimal vir die CD69 selmembraan uitdrukking en het 84.21% opgelewer. Vir CD25 selmembraan uitdrukking was die selle vir ses ure met phietoheamagglutinin (PHA) gestimuleer by 37°C in 5% CO2 kondisie en het 43% CD25 selmembraan uitdrukking opgelewer. HLA-DR selmembraan uitdrukking: selle was vir ses ure saam met PHA by 37°C in 5% CO2 kondisie inkubeer en het 43.32% opgelewer. CD40 Ligand aktivering/gestabiliseerde limfosiete het tot en met dag 23 stabiliteit getoon. Die ligand was duidelik identifiseerbaar en kwantifiseerbaar. Geaktiveerde lymphosiete wat CD69, CD25 en HLA-DR selmembraan merkers uitdruk het na die stabiliseerings proses stabiliteit getoon tot-en-met dag 16. Gevolgtrekking: Die doel van hierdie studie was om verwysingskontroles voor te berei sodat dit vars heelbloed naboots met uitkenbare eienskappe vir kliniese situasies. ‘n Toets kontrolestel met verwysings materiaal vir drie vlakke (byvoorbeeld ‘n lae, medium en hoë kontrole) absolute selwaardes en persentasies kan voorberei word vir roetine immunologiese fenotiperings merkers (CD3/CD4/CD8/CD45). Meer gespesialiseerde kontrolestelle vir meer spesifieke doeleindes kan opgemaak word wat ‘n verskydenheid van limfosiet aktiveringsmerkers bevat met byvoorbeeld ‘n “nul”, lae en hoë verwysings kontrole daarin. Hierdie heelbloed kan dien as “aktiveerde interne kwaliteits verwysings materiaal” en kan gebruik word om nuut aangestelde laboratorium werkers en nuut gekwalifiseerde studente op te lei. Hierdie verwysings materiaal / kontroles kan aangewend word vir bevoegdheids doeleindes (byvoorbeeld vir SANAS akkreditasie doeleindes), vir metode ontwikkeling, vir sagteware toetsing, vir paneel opstelling en instrument verstellings doeleindes. Die kontroles moet ‘n verskydenheid eienskappe bevat om effektief te wees. Byvoorbeeld, stabiliteit tydens storing, gewenslik meer as ‘n paar weke, herhaalbaar en maklik handteerbaar. Hierdie kontroles sal inligting voorsien op ‘n daaglikse basis tydens wisseling van tegnieke of instrumentasie wat akuraatheid beinvloed en op die ou-end direk pasiënt versorging bevoordeel.
5

Onderwysers se ervaring van die doel en die implementering van Geïntegreerde Gehaltebestuurstelsel (GGBS)

Sass, Jan Johannes 12 1900 (has links)
Thesis (MEd (Education Policy Studies))--University of Stellenbosch, 2010. / Bibliography / ENGLISH ABSTRACT: Evaluation is seen as one of the key elements to enhance the teaching skills and subject knowledge of teachers, thereby facilitating effective and quality teaching and learning. One way of ensuring that this becomes a reality at South African schools is the introduction of an evaluation policy, namely the Integrated Quality Management System, as contained in the document Integrated Quality Management System (IQMS), Collective Agreement Number 8 of 2003 of the Education Labour Relations Council. This research was conducted against the backdrop of IQMS implementation in South African schools since 2005, and explored answers to the following questions: How do teachers experience the implementation of the IQMS (a form of evaluation)? To what extent does the IQMS contribute to the support, development and growth of teachers? Has the implementation of the IQMS had any positive impact on the quality of teaching and learning in schools? The data for the research were collected in 39 schools in Paarl and surrounding areas. The findings of the research study are based on a quantitative (questionnaire) investigation in the framework of an interpretive and positivistic paradigm. The results of the research showed that a significant number of teachers experience the goal and implementation of the IQMS as problematic. This leads to the conclusion that the implementation of the policy has not necessarily contributed to a fundamental improvement in the quality of teaching and learning in the participating schools. This conclusion is also based on the lack of meaningful and ongoing support and assistance that respondents receive before and after the evaluation process. The findings of this study correspond with those of international studies on the same topic, and indicate that teachers face universal problems, particularly with regard to the implementation of evaluation policies. This study could contribute to further research on the topic. / AFRIKAANSE OPSOMMING: Evaluering word as een van die kernelemente beskou om onderwysers se onderrigvaardighede en vakkennis te verbeter, en sodoende doeltreffende en goeie onderrig en leer in die hand te werk. Een manier om toe te sien dat dít in Suid- Afrikaanse skole werklikheid word, is die instelling van evalueringsbeleid, oftewel die Geïntegreerde Gehaltebestuurstelsel (GGBS), soos dit in die dokument Integrated Quality Management System (IQMS), Collective Agreement Number 8 of 2003 van die Raad op Arbeidsverhoudinge in die Onderwys vervat word. Hierdie studie is teen die agtergrond van GGBS-inwerkingstelling in Suid-Afrikaanse skole sedert 2005 onderneem, en soek na antwoorde op die volgende vrae: Hoe ervaar onderwysers die inwerkingstelling van die GGBS ( vorm van evaluering)? In watter mate dra die GGBS by tot die ondersteuning, ontwikkeling en groei van onderwysers? Het die inwerkingstelling van die GGBS enige positiewe invloed op die gehalte van onderrig en leer in skole? Die data vir die navorsing is in 39 skole in die Paarl en omgewing ingesamel. Die bevindings van die navorsingstudie is gegrond op kwantitatiewe (vraelys-) ondersoek in vertolkende en positivistiese paradigma. Die navorsingsresultate toon dat beduidende aantal onderwysers die doel en inwerkingstelling van die GGBS as problematies ervaar. Dít lei tot die gevolgtrekking dat die inwerkingstelling van die beleid nie noodwendig tot grondliggende verbetering in die gehalte van onderrig en leer in die deelnemerskole gelei het nie. Dié gevolgtrekking berus ook op die gebrek aan sinvolle en deurlopende ondersteuning en hulp wat die respondente voor en ná die evalueringsproses ontvang. Die bevindings van hierdie studie stem ooreen met dié van internasionale studies oor dieselfde onderwerp, en toon dat onderwysers, bepaald wat die inwerkingstelling van evalueringsbeleid betref, met universele probleme te kampe het. Hierdie studie kan tot verdere navorsing oor die onderwerp bydra.
6

Organisational culture and external quality assurance

Naidoo, Dhanasagran 12 1900 (has links)
Thesis (PhD (Curriculum Studies))--University of Stellenbosch, 2009. / ENGLISH ABSTRACT: Organisational culture and external quality assurance in higher education have both drawn significant attention to their promise of greater organisational effectiveness and efficiency and enhanced, improved higher education respectively. In recent years, these constructs have been linked by an assumption that an organisational culture that is amenable to change would be more receptive to the introduction of formal external quality‐assurance structures, systems and instruments, as these are aimed at effective and efficient higher education practices, processes and outcomes. However, this assumption has not been sufficiently tested given that there are significant philosophical, conceptual and methodological controversies and contestations surrounding both constructs. While the organisational culture literature has been littered with a proliferation of paradigms and, albeit, fragmented theories, there has been a paucity of theory building in the corresponding literature on quality in higher education in general and on the impact of external quality assurance on institutions specifically. A qualitative case study was conducted at a newly merged university of technology to investigate two taken‐for‐granted assumptions: first, that organisational cultures are homogenous, unitary and centred around shared values and could therefore easily be manipulated (usually from the top by management), and second, that the introduction of external quality assurance is an unproblematic technology that will be accepted without question by higher education institutions as it was premised upon the laudable aim of improving the quality of those institutions. A conceptual four‐perspective framework was developed to critically evaluate the literature and provide the basis for the threedimensional model used in analysing the findings. The research generated several key conclusions that appear to challenge commonly held and articulated positions with regard to organisational culture and external quality assurance. First, organisational culture should be considered as being more ephemeral than concrete, multidimensional than singular, characterised simultaneously by conflict, consensus and indifference and in a constant state of flux. Second, external quality assurance is not necessarily a value‐free and neutral exercise aimed at improving the quality of teaching and learning, as promised in its early conceptualisation and implementation. Third, multiple cultures may exist simultaneously, interact with and influence each other constantly and of course determine interactions within the organisation and the nature of engagement with externally originated initiatives. Fourth, external quality assurance has purposes that go beyond its often morally just and public‐good motives as it tacitly and overtly acts as an agent of control, empowerment and transformation and simultaneously as an agent of the state, though not necessarily to the same extent. / AFRIKAANSE OPSOMMING: Organisatoriese kultuur en eksterne gehalteversekering in hoër onderwys het albei die aandag in groot mate gevestig op hulle belofte van groter organisatoriese doeltreffendheid en doelmatigheid en gevorderde, verbeterde hoër onderwys onderskeidelik. In die afgelope paar jaar is hierdie konstrukte byeengebring deur ʼn veronderstelling dat ʼn organisatoriese kultuur wat vatbaar is vir verandering, meer ontvanklik sal wees vir die invoer van formele eksterne strukture, stelsels en instrumente vir gehalteversekering, aangesien dit op doeltreffende en doelmatige praktyke, prosesse en uitkomste vir en van hoër onderwys gerig is. Hierdie aanname is egter nie voldoende getoets nie gegee die feit dat daar aansienlike filosofiese, konseptuele en metodologiese strydvrae en twispunte ten opsigte van albei konstrukte bestaan. Terwyl literatuur oor organisatoriese kultuur deur ʼn magdom paradigmas en weliswaar gefragmenteerde teorieë oorweldig is, was teoriebou in die ooreenstemmende literatuur oor gehalte in hoër onderwys in die algemeen en oor die impak van eksterne gehalteversekering op instellings in die besonder redelik skaars. ʼn Kwalitatiewe gevallestudie is onderneem by ʼn universiteit van tegnologie wat onlangs saamgesmelt het om twee aannames wat as vanselfsprekend aanvaar is, te ondersoek: eerstens, dat organisatoriese kulture homogeen, unitêr en óm gedeelde waardes gesentreer is en dat dit dus maklik gemanipuleer kan word (gewoonlik van bo af deur die bestuur), en tweedens, dat die invoer van eksterne gehalteversekering ʼn onproblematiese tegnologie is wat sonder teenspraak deur hoëronderwysinstellings aanvaar sal word, aangesien dit op die prysenswaardige oogmerk van verbetering van die gehalte van daardie instellings gegrond is. ʼn Konseptuele raamwerk bestaande uit vier perspektiewe is ontwikkel vir die kritiese evaluering van die literatuur en dit verskaf die grondslag vir die driedimensionele model wat vir die analise van die bevindings gebruik is. Die navorsing het verskeie belangrike gevolgtrekkings na vore laat kom wat algemeen geldende en duidelik bepaalde posisies ten opsigte van organisatoriese kultuur en eksterne gehalteversekering blyk uit te daag. Eerstens moet organisatoriese kultuur beskou word as efemeries eerder as konkreet, multidimensioneel eerder as enkelvoudig, terwyl dit gelyktydig deur konflik, konsensus en onverskilligheid gekenmerk word en in ʼn gedurige toestand van wisseling verkeer. Tweedens is eksterne gehalteversekering nie noodwendig, soos in die vroeë konseptualisering en implementering belowe, ʼn waardevrye en neutrale oefening gemik op verbetering van die gehalte van onderrig en leer nie. Derdens kan veelvuldige kulture gelyktydig bestaan, met mekaar in interaksie tree en mekaar voortdurend beïnvloed en natuurlik interaksies binne die organisasie en die aard van betrokkenheid by inisiatiewe wat ekstern ontstaan, bepaal. Vierdens het eksterne gehalteversekering oogmerke wat veel verder strek as die motiewe daarvan wat dikwels moreel geregverdig en vir die openbare beswil is aangesien dit stilswyend en op overte wyse optree as ʼn agent vir beheer, bemagtiging en transformasie en tegelyk as ʼn agent van die regering, alhoewel nie noodwendig tot dieselfde mate nie.
7

South African citrus farmers' perceptions of the benefits and costs of compliance with private sector certification schemes for citrus exports.

Ndlovu, P. G. January 2010 (has links)
The main objective of this study was to analyse South African (SA) citrus farmers’ perceptions of the benefits and costs of complying with quality assurance (QA) certification schemes for citrus exports to the European Union (EU). The study used an e-mail and postal survey questionnaire mailed to a stratified random sample of 260 SA commercial citrus growers during July 2007. The survey yielded 108 usable responses - a response rate of 10.8% from the target population of 1001 commercial SA citrus growers. The main factors motivating respondents to adopt QA certification were to keep and maintain access to existing markets; to improve customer confidence in their products; to access new markets; and to meet food safety and retailer requirements. Principal Component Analysis (PCA) identified six underlying dimensions of motivators, which suggest a drive by sampled respondents to gain certification to meet market requirements, achieve intra-farm benefits such as cost-reduction, and to remain competitive in existing and new foreign markets. The sampled respondents identified the main internal benefits from QA certification as the ability to retain existing markets; improved worker health and safety; better access to foreign markets; better farm organisation; and improved fruit safety and orchard management. The PCA identified six broad dimensions of these internal benefits. Comparing the motivator and perceived benefit dimensions, most of the motivators seem to have been in part realised by the respondents. Respondents rated shared goals and values about the product; more joint decision making on fruit safety; more working together on quality assurance; a better business working relationship; improved coordination; and improved trust as the six major supply chain benefits from QA certification. The two dimensions identified from these external benefits by PCA were: (1) Improved working relationship and product quality benefits, and (2) Improved cooperation and contractual benefits. The major costs of implementing EUREPGAP certification related to initial investment costs and the recurrent annual costs of compliance. The respondents, on average, spent an estimated R70655 on initial compliance costs, mainly for infrastructure, additional buildings and employees training. Some 60% of respondents spent less than 1% of annual farm turnover on initial compliance costs, while most of the respondents (84%) spent less than 1% of annual farm turnover on recurrent costs of compliance. Growers that owned a pack-house had statistically significantly higher initial and annual costs of compliance. Most (63%) of the respondents had a relatively high level of overall satisfaction with QA certification. The second objective of this study was to analyse the determinants of SA citrus farmers’ overall level of satisfaction with QA certification. Ordinary Least Squares (OLS) regression estimated that perceived dimensions of internal benefits, namely (1) Foreign market access benefits; (2) Intra-farm benefits; (3) Improved fruit safety and orchard management; (4) Quality and worker welfare benefits; and (5) Ability to retain existing markets, all had a statistically significant positive influence on the sampled growers’ overall level of satisfaction with QA certification. Supply chain benefits also had a positive effect on overall level of satisfaction, although the effects were not statistically significant. Similarly, no statistically significant relationship could be established between farm size or the respondents’ level of satisfaction with their certifying agents and their overall level of satisfaction with QA certification. Record keeping is required by nearly all EUREPGAP control chapters and for farm audits. Crop protection is also perceived as a complex requirement of the EUREPGAP protocol. Policymakers thus need to be aware of the extra costs that protocols create for management. The Citrus Growers’ Association of Southern Africa (CGA) could consider providing more extension advice to farmers on the technical requirements of certification (particularly best practices for implementing the control chapters). Comparing the motivator and perceived benefit dimensions, most of the motivators for QA certification seem to have been in part realised by the respondents. For instance, the drivers to improve business image/market competitiveness/market access requirements/farm profitability were realised via perceived reputation/input cost savings/foreign market and profit improvement benefits. The study results, therefore, provide some evidence that QA certification is a necessary strategy for maintaining competitiveness in EU citrus markets. / Thesis (M.Sc.)-University of KwaZulu-Natal, Pietermaritzburg, 2010.
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An exploration into the conditions enabling and constraining the implementation of quality assurance in higher education: the case of a small comprehensive university in South Africa

Masehela, Langutani Meriam January 2015 (has links)
At an international level, demands for accountability in respect of the quality of teaching and learning in higher education are increasing. This is also the case in South Africa. The response to these demands has taken the form of the introduction of quality assurance systems to higher education. In South Africa, a formal national external quality assurance was introduced to the higher education system in 2001 as a result of the establishment of the Higher Education Quality Committee. The Higher Education Quality Committee is a standing committee of the South African Council on Higher Education. Like other quality assurance agencies across the world, the Higher Education Quality Committee has the responsibility for i) auditing institutions of higher education and ii) accrediting learning programmes. The first cycle of institutional audits ran from 2004 until 2011. As quality assurance was introduced to the higher education system and the first cycle of institutional audits began, universities in South Africa developed policies and procedures intended to assure quality in three areas of their core functioning: research, teaching and learning and community engagement. The University of Venda, which is the focus of the study on which this thesis is based, was no exception. As a practitioner in the Centre for Higher Education Teaching and Learning at The University of Venda, it was my observation that the policies and procedures intended to assure quality in teaching and learning were not always implemented by academic staff members. This was in spite of poor student performance data which raised questions about the quality of the teaching and learning processes in place. The study underpinning this thesis was designed to explore this phenomenon. More specifically, it aimed to identify the conditions enabling and constraining the implementation of policies and procedures in two Schools in the University: the School of Health Sciences and the School of Human and Social Sciences. In order to explore these conditions, I adopted Roy Bhaskar’s Critical Realism as an under-labouring philosophy for the study. Critical realism posits a view of reality comprising three strata, none of which can be reducible to the other. The first of these strata is termed the level of the Empirical and consists of the experiences and observations which become apparent to us through the senses. The second layer, the Actual, consists of events from which these experiences and observations emerge. Underpinning both of these layers is a further layer, the Real, which is not accessible by empirical means and which consists of structures and mechanisms which generate both events at the level of the Actual and experiences and observation at the level of the Empirical. The design of my study sought to reach this deepest layer of reality to identify these mechanisms. Bhaskar’s critical realism is philosophy which needs to be operationalized using substantive, or explanatory, theory. For this purpose, I drew on Margaret Archer’s social realism. The design on my study drew on case study methodology and involved in-depth interviews with members of the two Schools which each formed cases within the more overarching case of the University itself. In addition to these interviews, I analysed a range of institutional documents related to the assurance of quality in teaching and learning. The exploration of enabling and constraining conditions at the level of the Real allow me to make a series of recommendations in the final Chapter of my thesis intended to enhance the quality assurance system introduced to the University.

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