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We report on our experiences from two user studies (lab experiments) with nearly 300 participants for QoE evaluation using real mobile services and devices in our WiFi network emulation testbed. We briefly introduce our principles for integrating real services in these studies: how we selected relevant services, how we investigated their testability and how we tested them with high efficiency.

In der theoretischen Auseinandersetzung mit mobilen Internet-Diensten sind Quality of Service (QoS) und Quality of Experience (QoE) als hochkomplexe und verbundene Konzepte zu erkennen. QoS umfasst dabei die technische Sicht auf das Telekommunikationsnetz, charakterisiert durch leistungsrelevante Parameterwerte (z. B. Durchsatz und Latenz). QoE hingegen bezieht sich auf die Bewertung des Nutzererlebnisses (z. B. Zufriedenheit und Akzeptanz). Zur gemeinsamen Erklärung bedarf es einer multi- bzw. interdisziplinären Betrachtung zwischen Ingenieurs- und Humanwissenschaften, da neben der Technik auch der Mensch als Nutzer in den QoS-QoE-Zusammenhang involviert ist. Ein mehrschichtiges Modell erfasst die relevanten Einflussfaktoren und internen Zusammenhänge zwischen QoS und QoE sowohl aus Netz- als auch Nutzersicht. Zur Quantifizierung des Zusammenhangs konkreter Werte in einer empirischen QoE-Evaluation wurde ein umfangreiches psychophysikalisches Laborexperiment konzipiert. Das dafür entwickelte Netzemulations-Testbed erlaubt mobiltypische Netz- und Nutzungssituationen gezielt in einem Testparcours zusammenzubringen. Die formulierten Prinzipien zur Testrelevanz, -eignung und -effizienz berücksichtigen hierbei die Besonderheiten des Testaufbaus und -designs mit echten Endgeräten und Diensten. Die Ergebnisse von über 200 Probanden bestätigen die vorhergesagten QoS-QoE-Charakteristiken der sechs untersuchten Dienste als kontinuierlich-elastisch bzw. sprunghaft-fest. Dienstspezifisch lässt sich jeweils von einem angestrebten Grad der Nutzerzufriedenheit auf die notwendigen Werte der QoS-Netzparameter schließen, woraus sich ein QoS-QoE-Zufriedenheitskorridor zwischen einem unteren und oberen Schwellwert ergibt. Teilweise sind dabei QoS-unabhängige Faktoren, z. B. die Art der Präsentation der Stimuli in der App auf dem Endgerät, als ebenso relevant zu erkennen wie die QoS-Netzparameter selbst. / The thesis is centered on the relationship of Quality of Service (QoS) and Quality of Experience (QoE) for mobile Internet services. While QoS covers the technical view on the telecommunications network characterized by performance-related parameter values (e.g. throughput and latency), QoE refers to the assessment of the user experience (e.g. satisfaction and acceptability) in the use of the services. In the thesis QoS and QoE are revealed as highly complex and related concepts in theoretical contemplation. Integrating both concepts requires a multidisciplinary or interdisciplinary approach between engineering and human sciences to consider both - technological aspects of the network as well the human user. The designed multilayered model appropriately integrates the technical network view as well as the user's perspective by considering all relevant factors of influence and all internal relationships between QoS and QoE. The conducted extensive psychophysical laboratory experiment with real users, devices and services quantifies the relationship between specific QoS values and specific QoE values. A testbed developed for network emulation allows combining typical mobile network situations with typical usage situations in a controlled and focused manner. The three elaborated principles to test for relevance, suitability and efficiency take into account the special features of the test setup and test design. Test results gained from more than 200 volunteers confirm the predicted QoS-QoE-characteristics of the six tested mobile services to be either elastic or non-elastic. It is possible to conclude from the desired degree of user satisfaction on the necessary values of the QoS network parameters, which results in a QoS-QoE-corridor between lower and upper threshold values. Findings prove that QoS-independent factors, e.g. the type of presentation of the stimuli in the app on the user’s device, can be as relevant for QoE as the evaluated QoS network parameters themselves.

Finansiele bestuur word aile~ as die taak van finansiele bestuurskundiges beskou. By nie-winsgerigte organisasies raak dit egter dikwels die verantwoordelikheid van niefinansiE! Ie personeel of bestuurslede uit 'n ander opleidingsagtergrond. Maatskaplike werkers, een van die vemaamste diensprofessies betrokke by nie·w;nsgerigte welsynsorganisasies, beskik nie noodwendig oor hierdie bestuursvaardighede nie. Hierdie studie kan bydra tot maatskaplike werkers en ander nie-finansiele personeel se verbeterde kennis en insig van sleutelaspekte van finansiele bestuur. Dit kan terselfdertyd ook finansiele bestuurders sensitiseer vir die eiesoortig-gekompliseerde eise van finansiele bestuur op die terrein van nie-winsgerigtheid, waar die fokus op diensfewering eerder as finansiile gewin, val. Dit konseptualiseer algemene bestuursfunksies en finansiele risikofaktore binne die konteks en eiesoortigheid van nie-winsgerigte flnansiAie bestuur. Hierdie kennis kan moontlik die gaping tussen die. bestuursvaardighede van finansiele- en nie-finansiele bestuurders help oorbrug en die sukses en voortbestaan van nie-winsgerigte welsynsorganisasies bevorder deur die kwaliteit van bestuursinsette te verbeter. / Financial management is commonly regarded to be the field of financial managers. In the case of non-profit or voluntary organisations it often becomes the responsibility of non-financial personnel or members of management from other educational backgrounds. Social workers involved in non-profit organisations rendering welfare services do not necessarily have the required financial management skills. This study can provide social workers and other non-financial personnel with information to better their understanding on key issues concerning financial management. It can also sensitise financial managers towards the uniquely complicated demands on financial management in the non-profit environment, where the focus falls on service delivery rather than on financial gain. It conceptualises management principles as well as financial risk factors in the distinct context of non-profitable financial management. This knowledge could probably aid in bridging the gap between the management skills of financial and non-financial managers and thus promote the success and sustainabUity of non-profit organisations by improving the quality of input by management. / Social work / M.Diac. (Maatskaplike werk (Bestruur)

The South African Postbank Limited has been tasked by Government with a social mandate to provide basic financial services to people receiving low income and people living in rural areas. Personal financial literacy is an essential element which affects financial inclusion in the target market of a state–owned bank. To achieve the bank?s social mandate and its objective, it would be vital to determine whether people in low income and rural demographics are financially literate. Financial literacy is defined as the ability to manage your money on a day–to–day basis, do future financial planning, choose sound financial products and have appropriate financial knowledge and understanding. Various factors influence the level of financial literacy of a person and in order to improve the financial literacy of a person, cognisance should be taken of that person?s age, gender, living conditions, income–level and socio–economic elements. It will be beneficial for a state–owned bank, in order to reach its social mandate, to implement financial educational programmes to increase financial literacy. The latter will increase the amount of potential customers and thus promote financial inclusion in the long run. The sample in low income and rural areas has been found to be the most wanting in financial literacy and therefore it is crucial to address this shortcoming in the target market of the state–owned bank in order to reach the social mandate of financial inclusion. / Thesis (M.B.A.)--North-West University, Potchefstroom Campus, 2012.

The South African Postbank Limited has been tasked by Government with a social mandate to provide basic financial services to people receiving low income and people living in rural areas. Personal financial literacy is an essential element which affects financial inclusion in the target market of a state–owned bank. To achieve the bank?s social mandate and its objective, it would be vital to determine whether people in low income and rural demographics are financially literate. Financial literacy is defined as the ability to manage your money on a day–to–day basis, do future financial planning, choose sound financial products and have appropriate financial knowledge and understanding. Various factors influence the level of financial literacy of a person and in order to improve the financial literacy of a person, cognisance should be taken of that person?s age, gender, living conditions, income–level and socio–economic elements. It will be beneficial for a state–owned bank, in order to reach its social mandate, to implement financial educational programmes to increase financial literacy. The latter will increase the amount of potential customers and thus promote financial inclusion in the long run. The sample in low income and rural areas has been found to be the most wanting in financial literacy and therefore it is crucial to address this shortcoming in the target market of the state–owned bank in order to reach the social mandate of financial inclusion. / Thesis (M.B.A.)--North-West University, Potchefstroom Campus, 2012.

Abstracts and keywords in English, Afrikaans, Zulu and Northern Sotho / The main aim of this study is to obtain the MASTER OF ARTS degree. Secondly this study gives clarity on the study of long-term offenders in a maximum security prison. Offenders detained in maximum security prisons are given long-term imprisonment by the court of law. Long-term imprisonment goes along with high level of stress in correctional facilities. As a result, the development and treatment programs offered for inmates form part of the study. This study is important for the South African correctional system due to some of the categories of offenders in maximum security prisons. / Die hoofoogmerk van hierdie studie is om ʼn MAGISTER-graad te verwerf. Die studie gee tweedens duidelikheid oor die bestudering van langtermynoortreders in ʼn maksimumsekuriteittronk. Oortreders wat in maksimumsekuriteittronke aangehou word, word langtermyngevangenisstraf opgelê deur ʼn geregshof. Langtermyngevangenisstraf word geassosieer met hoë stresvlakke in korrektiewe fasiliteite. Die ontwikkeling- en behandelingprogramme wat aan gevangenes gebied word, vorm deel van hierdie studie. Hierdie studie is belangrik vir die Suid-Afrikaanse korrektiewe stelsel en sommige van die kategorieë van oortreders in maksimumsekuriteittronke. / Okuyiyona nhloso enkulu yalolu cwaningo ngukuthola iziqu zemiyezane ye-MASTER OF ARTS. Okwesibili, lolu cwaningo luyacacisa mayelana nokucwaninga ngezaphulamthetho ezingahle zibuye ziphinde (long-term offenders), ezisuke sisejele elinokuvikeleka okuseqophelweni eliphezulu. Izaphulamthetho eziboshelwe emajele anokuvikeleka okuseqophelweni eliphezulu zisuke zigwetshwe yinkantolo yomthetho ukuthi zihlale ejele isikhathi eside. Ezindaweni zokuhlumelelisa izimilo, ukuboshwa isikhathi eside kuhambelana namazinga aphezulu engcindezi (stress). Izinhlelo ezakhelwe ukuthuthukisa kanye nokwelapha iziboshwa ziyizinto eziyingxenye yalolu cwaningo. Lolu cwaningo lusemqoka maqondana nohlelo lwaseNingizimu Afrika lokuhlumelelisa izimilo kanye nakwezinye izigaba zezaphulamthetho emajele anokuvikeleka okuseqophelweni eliphezulu. / Maikemišetšo a magolo a nyakišišo ye ke go hwetša lengwalo la thuto la MASTASE (MA). Sa bobedi, nyakišišo ye e fa tlhaloso ka ga nyakišišo ya basenyi ba paka ye telele ka kgolegong ya bagolegwa bao ba lego kotsi kudu. Basenyi bao ba golegilwego ka dikgolegong tša bagolegwa bao ba lego kotsi kudu ba fiwa kahlolo ya paka ye telele ke kgorotsheko ya molao. Kahlolo ya paka ye telele e amantšhwa le maemo a godimo a kgatelelo ka gare ga mafelo a tshokollo. Mananeo a tshwaro le tshokollo ao a abelwago bagolegwammogo a bopa karolo ya nyakišišo. Nyakišišo ye e bohlokwa go mokgwa wa Afrika Borwa wa tshokollo le go magoro a mangwe a basenyi ka gare ga dikgolego tša bagolegwa bao ba lego kotsi kudu. / Corrections Management / M.A. (Corrections Management)

Finansiele bestuur word aile~ as die taak van finansiele bestuurskundiges beskou. By nie-winsgerigte organisasies raak dit egter dikwels die verantwoordelikheid van niefinansiE! Ie personeel of bestuurslede uit 'n ander opleidingsagtergrond. Maatskaplike werkers, een van die vemaamste diensprofessies betrokke by nie·w;nsgerigte welsynsorganisasies, beskik nie noodwendig oor hierdie bestuursvaardighede nie. Hierdie studie kan bydra tot maatskaplike werkers en ander nie-finansiele personeel se verbeterde kennis en insig van sleutelaspekte van finansiele bestuur. Dit kan terselfdertyd ook finansiele bestuurders sensitiseer vir die eiesoortig-gekompliseerde eise van finansiele bestuur op die terrein van nie-winsgerigtheid, waar die fokus op diensfewering eerder as finansiile gewin, val. Dit konseptualiseer algemene bestuursfunksies en finansiele risikofaktore binne die konteks en eiesoortigheid van nie-winsgerigte flnansiAie bestuur. Hierdie kennis kan moontlik die gaping tussen die. bestuursvaardighede van finansiele- en nie-finansiele bestuurders help oorbrug en die sukses en voortbestaan van nie-winsgerigte welsynsorganisasies bevorder deur die kwaliteit van bestuursinsette te verbeter. / Financial management is commonly regarded to be the field of financial managers. In the case of non-profit or voluntary organisations it often becomes the responsibility of non-financial personnel or members of management from other educational backgrounds. Social workers involved in non-profit organisations rendering welfare services do not necessarily have the required financial management skills. This study can provide social workers and other non-financial personnel with information to better their understanding on key issues concerning financial management. It can also sensitise financial managers towards the uniquely complicated demands on financial management in the non-profit environment, where the focus falls on service delivery rather than on financial gain. It conceptualises management principles as well as financial risk factors in the distinct context of non-profitable financial management. This knowledge could probably aid in bridging the gap between the management skills of financial and non-financial managers and thus promote the success and sustainabUity of non-profit organisations by improving the quality of input by management. / Social work / M.Diac. (Maatskaplike werk (Bestruur)

Text in Afrikaans, abstract in Afrikaans and English / Different methods of calculation of the loss of support of minor children, are investigated. According to one method (A), one first has to establish that the deceased's income was not all absorbed for his/her own maintenance. Only if there is surplus income available, it can be inferred that the deceased contributed towards the maintenance of the minor children and that the children have suffered a loss. According to another method (B) both parents' income are added and then divided between the family members. The minor child's loss of support is an amount which represent his/her share in the deceased's own income - a child automatically suffers a loss according to this method, in the event of death of a parent. Method B ought to be applied, because it is consistent with the reciprocal duty of support between spouses and the duty of spouses to maintain children. / Verskillende metodes om die verlies aan onderhoud van afhanklike kinders te bereken word ondersoek. Volgens een benadering (A) moet eers vasgestel word of die oorledene se inkomste nie alles geabsorbeer is vir sy /haar eie onderhoud nie. Slegs indien daar surplusinkomste was, kan aanvaar word dat die oorledene bygedra het tot die onderhoud van die minderjarige kinders en dat die kinders 'n verlies ly. Volgens die ander benadering (B) word beide ouers se inkomste bymekaar getel en dan tussen die gesinslede verdeel. Elke minderjarige kind se verlies aan onderhoud is 'n bedrag wat sy/haar aandeel in die oorlede ouer se afsonderlike inkomste verteenwoordig - 'n kind ly outomaties volgens hierdie metode 'n verlies. Metode B behoort meestal aanwending te vind, aangesien dit in ooreenstemming is met die wederkerige onderhoudsplig tussen gades en die plig van ouers om hul kinders te onderhou. / Private Law / LL. M. (Law)