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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.
41

The critical success factors for managing the visitor experience at a major musical event / Bianca Manners

Manners, Bianca January 2011 (has links)
With numerous artists coming to South Africa, the event industry is becoming congested with competition. This makes the production of a memorable visitor experience to events particularly challenging for the management of the event. Various aspects are required to occur when managing an event, and these contribute to the success and memorable experience of visitors. These aspects can either be controlled or uncontrolled by management. To ensure a successful event and memorable experience for visitors, event managers have to consider all of the various aspects that can be controlled within the event organisation when hosting a major music event. It is therefore important for management to ensure that the controllable key management aspects, also referred to as Critical Success Factors (CSFs), are implemented effectively and efficiently to ensure a memorable visitor experience. However, even though these management aspects (CSFs) may be familiar to event managers, the significance of what visitors regard as important concerning those aspects that would ensure a memorable visitor experience is, as yet, undefined. In addition, according to available literature, CSFs differ between the different events and different tourism organisations. Thus, CSFs identified at one event to ensure the successful management of a memorable visitor experience cannot be used at other events. Hosting major music events at various locations can be even more challenging as visitors attending major music events at different locations are a non-homogeneous market and so regard different aspects in different lights. Therefore, it is evident that the CSFs identified with regard to what visitors at one venue will consider as important will differ from those regarded as important at another venue, even when it is the same performer at each venue. Thus, it became critical to seek answers to the questions of what visitors to a major music event regarded as important CSFs and how did the importance of these CSFs differ between location and location? Therefore, the purpose of this study became the determination of the CSFs for managing the visitor experience at major music events in South Africa. The year 2011 was the first time that world-famous Neil Diamond had performed in South Africa. Neil Diamond performed four concerts at different locations (Johannesburg’s FNB stadium, Durban’s Moses Mabhida Stadium, Cape Town’s Greenpoint Stadium and at Port Elizabeth’s Nelson Mandela Stadium). This was the first time major music events had been held at these venues where one performing artist performed at all four different locations (cities). Thus, this event was the ideal opportunity to investigate. In order to realise the goal of the research, surveys were conducted at the four Neil Diamond concerts held, respectively, in Johannesburg (1 April, 2011), Durban (5 April, 2011), Port Elizabeth (8 April, 2011) and Cape Town (11 April, 2011) where, altogether, 1820 questionnaires were administered. The purpose of the first article was to determine what visitors at a major musical event regarded as critical management aspects, or as critical success factors (CSFs), for a memorable and satisfactory visitor experience. This was to aid major music event managers with information they could use to improve and ensure memorable visitor experiences in the future. A factor analysis was performed to determine the CSFs. Six factors were revealed, being General Management; Souvenirs; Marketing; Venue and Technical aspects; Accessibility and Parking; and Amenities and Catering. General Management, Venue and Technical aspects and Marketing were regarded as the most important CSFs for visitors to a major music event. It was subsequently confirmed that CSFs differed from one event to another. Thus it became clear that one set of CSFs cannot be used across each venue for events. By determining the CSFs, and through successfully managing these factors, major music events will ensure the retention of long term visitor goodwill, and so will remain competitive and sustainable. Neil Diamond presented four concerts at four different locations, The purpose of the second article was to determine the impact that location makes to the visitor experience at a major music event. Two-way frequency tables and Chi-square tests as well as ANOVAS and Turkey’s multiple comparisons were used to determine the differences between the four locations. Statistically significant differences were found, based on demographic, behavioural variables and motivational factors. Determining the effects these differences have provided major music event managers with superior knowledge in order to develop and manage future concerts at the differing destinations and locations. This research also help management to create a memorable visitor experience and so foster the promotion of future events more effectively to the target audiences, as well as potential sponsors. This specificity can also enhance bid documents for organisations and locations aiming at hosting major music events. This research revealed six critical success factors at a major music event. These CSFs can be used to enhance the visitor experience. However, it was also found that one set of CSFs cannot be used for every event as different locations regard different CSFs as being more important than others. Since major music events are often held at more than one location, it becomes critical to differentiate each location as the visitors to the various locations cannot be seen as homogeneous and so will have different needs and expectations. Thorough and informed knowledge of what is required for visitor satisfaction will not only ensure an improved event, but will enhance the visitor experience at such an event. This was the first time research was performed at major music events in South Africa that revealed the profile, motives, CSFs and spending behaviour of visitors to these events. Research not only provided information concerning the CSFs needed to manage the visitor experience at a major music event, but also provided an overall perspective of what visitors regard as important for a memorable visitor experience at four different geographic destinations hosting the same artist. This research contributes to the literature concerning the management of major music events and concerning the creation of memorable visitor experiences at these events. / Thesis (MA (Tourism Management))--North-West University, Potchefstroom Campus, 2012
42

價值策略導向之調適式SOA有效事件模型建構 / A Value-Driven Architecture Strategy of Adaptive SOA and EDA

盧美蓉 Unknown Date (has links)
服務導向架構(Service-Oriented-Architecture, SOA)與事件導向架構(Event-driven Architecture, EDA)的結合應用將成為未來Real-Time Enterprise軟體應用系統架構的主流趨勢,雖然兩架構的結合可以整體提升應用系統之反應、整合與溝通的能力,但若無良好的事件管理機制及搭配提供服務的配套設計,則難以充分發揮兩架構結合的互補綜效。本研究所提出之調適式SOA有效事件模型,以事件價值觀點(Value-driven)分析事件所提供的價值對使用者的重要性與效益。由於使用者所重視的事件價值不同,因此也為各別使用者設計一調適性事件語意資訊模型(Customized Event Ontology Model),作為篩選事件的依據,另外,事件管理機制也可運用智慧型代理人(Agent)觀察使用者採用事件的行為,透過學習更新事件過濾的規則,並可建議使用者取消訂閱(subscribe)不重視的事件。本研究同時搭配設計一事件與服務對應的機制,並透過此機制連結外部環境所提供的服務。本研究所提出之調適式SOA有效事件模型,預期可提供更為健全的服務導向架構(SOA)與事件導向架構(EDA)的結合應用設計,讓使用者可以真正受惠於此種應用軟體架構結合的好處與效用。 / The combination of Service-Oriented-Architecture (SOA) and Event-driven Architecture (EDA) will become the main trend of application architecture of Real-Time Enterprise in the future. Although the combination of these two architectures can enhance an application system’s capabilities in response, integration and communication as a whole, it’s hardly to extend these two architectures’ complemented advantages unless there is a sound mechanism for advanced event and service management. This paper presents a novel methodology which can analyze the importance and impacts of events’ values to users. Based on different emphases on events’ values among users, this research can also develop a Customized Event Ontology Model used as the basis for filtering events for an individual user. The event management mechanism designs an intelligent agent in order to observe the records of a user’s history events and to learn new filtering rules of events. The mechanism can also suggest the user to cancelling events which are insignificant to him. Furthermore, this study devises a mechanism to bridge the connections between events and services. The contribution of my methodology aims to provide an advanced solution of combining the architectures of SOA and EDA in order for a user to exert up-to-date information for personalized competitive advantage.
43

台灣會展產業永續性之挑戰- 以ISO 20121為解決方案 / The Challenges of the Sustainability in the MICE Industry in Taiwan - Using ISO 20121 as the Solution

賴柏宏 Unknown Date (has links)
會展產業(又稱MICE)具有整合多方資源的特性,能為當地帶來可觀的經濟效益,因此有火車頭產業之稱。但近年來研究發現MICE對經濟、環境社會帶來許多負面衝擊,應該進行永續發展以降低風險。2012年,倫敦奧運採用國際標準ISO 20121永續活動管理系統後,國際上廣泛地討論該標準的發展可能改變MICE既有的商業模式,更能落實永續發展。 本研究問題為「台灣MICE產業如何透過使用ISO20121發展其永續活動?」本研究認為,MICE使用ISO20121之過程應該要瞭解到相關利害關係人之觀點,才能夠深入瞭解企業使用ISO 20121的決策因素。本研究以「經營需求」、「競爭需求」、「發展需求」三個觀點進行分析,發現目前台灣MICE因為缺乏完整發展的綠色供應鏈而對標準使用造成了阻礙。本研究建議,為了使MICE能夠發展永續活動管理,政府與企業領導人應該與「多方共同合作培養成功案例」、「提倡MICE的合法性」、「發展綠色供應鏈」、「提供獎勵誘因」等方式增強市場對於永續需求的強烈信號。 / With the integrated features of multiple resources, event industry (also known as MICE) could bring considerable economic benefits for the local economy. However, recent studies have found that MICE can also cause negative impacts on economic, social and environmental aspects. To reduce the risk, MICE industry should address the sustainable development as a solution. After adopting by the London 2012 Olympic and Paralympics Games, ISO 20121, the standard of sustainable event management, have been extensively discussed in global society, which was considered to change the existing business model in MICE industry. This study aims to answer research question, “how can ISO 20121 benefit the MICE industry in Taiwan to develop sustainable event service?” This research finds out identifying differnet perspectives of stakeholders clearly is crucial so as to understand the decision factors that affect the use of ISO 20121. By examining “business needs”, “completion needs” and “development needs” perspectives, this study discovers that the lack of well-established green supply chain can hold back the sustainable development in the MICE industry in Taiwan. In order to develop the sustainable event service in MICE industry, this study suggests that the government and business leaders should cooperate with different sectors to create successful case study, advocate the legality, establish green supply chain and provide incentives as strong signal to stimulate the demand of sustainability in MICE market.
44

Optimization of cost-based threat response for Security Information and Event Management (SIEM) systems

Gonzalez Granadillo, Gustavo Daniel 12 December 2013 (has links) (PDF)
Current Security Information and Event Management systems (SIEMs) constitute the central platform of modern security operating centers. They gather events from various sensors (intrusion detection systems, anti-virus, firewalls, etc.), correlate these events, and deliver synthetic views for threat handling and security reporting. Research in SIEM technologies has traditionally focused on providing a comprehensive interpretation of threats, in particular to evaluate their importance and prioritize responses accordingly. However, in many cases, threat responses still require humans to carry out the analysis and decision tasks e.g., understanding the threats, defining the appropriate countermeasures and deploying them. This is a slow and costly process, requiring a high level of expertise, and remaining error-prone nonetheless. Thus, recent research in SIEM technology has focused on the ability to automate the process of selecting and deploying countermeasures. Several authors have proposed automatic response mechanisms, such as the adaptation of security policies, to overcome the limitations of static or manual response. Although these approaches improve the reaction process (making it faster and/or more efficient), they remain limited since these solutions do not analyze the impact of the countermeasures selected to mitigate the attacks. In this thesis, we propose a novel and systematic process to select the optimal countermeasure from a pool of candidates, by ranking them based on a trade-off between their efficiency in stopping the attack and their ability to preserve, at the same time, the best service to normal users. In addition, we propose a model to represent graphically attacks and countermeasures, so as to determine the volume of each element in a scenario of multiple attacks. The coordinates of each element are derived from a URI. This latter is mainly composed of three axes: user, channel, and resource. We use the CARVER methodology to give an appropriate weight to each element composing the axes in our coordinate system. This approach allows us to connect the volumes with the risks (i.e. big volumes are equivalent to high risk, whereas small volumes are equivalent to low risk). Two concepts are considered while comparing two or more risk volumes: Residual risk, which results when the risk volume is higher than the countermeasure volume; and Collateral damage, which results when the countermeasure volume is higher than the risk volume. As a result, we are able to evaluate countermeasures for single and multiple attack scenarios, making it possible to select the countermeasure or group of countermeasures that provides the highest benefit to the organization
45

The critical success factors for managing the visitor experience at a major musical event / Bianca Manners

Manners, Bianca January 2011 (has links)
With numerous artists coming to South Africa, the event industry is becoming congested with competition. This makes the production of a memorable visitor experience to events particularly challenging for the management of the event. Various aspects are required to occur when managing an event, and these contribute to the success and memorable experience of visitors. These aspects can either be controlled or uncontrolled by management. To ensure a successful event and memorable experience for visitors, event managers have to consider all of the various aspects that can be controlled within the event organisation when hosting a major music event. It is therefore important for management to ensure that the controllable key management aspects, also referred to as Critical Success Factors (CSFs), are implemented effectively and efficiently to ensure a memorable visitor experience. However, even though these management aspects (CSFs) may be familiar to event managers, the significance of what visitors regard as important concerning those aspects that would ensure a memorable visitor experience is, as yet, undefined. In addition, according to available literature, CSFs differ between the different events and different tourism organisations. Thus, CSFs identified at one event to ensure the successful management of a memorable visitor experience cannot be used at other events. Hosting major music events at various locations can be even more challenging as visitors attending major music events at different locations are a non-homogeneous market and so regard different aspects in different lights. Therefore, it is evident that the CSFs identified with regard to what visitors at one venue will consider as important will differ from those regarded as important at another venue, even when it is the same performer at each venue. Thus, it became critical to seek answers to the questions of what visitors to a major music event regarded as important CSFs and how did the importance of these CSFs differ between location and location? Therefore, the purpose of this study became the determination of the CSFs for managing the visitor experience at major music events in South Africa. The year 2011 was the first time that world-famous Neil Diamond had performed in South Africa. Neil Diamond performed four concerts at different locations (Johannesburg’s FNB stadium, Durban’s Moses Mabhida Stadium, Cape Town’s Greenpoint Stadium and at Port Elizabeth’s Nelson Mandela Stadium). This was the first time major music events had been held at these venues where one performing artist performed at all four different locations (cities). Thus, this event was the ideal opportunity to investigate. In order to realise the goal of the research, surveys were conducted at the four Neil Diamond concerts held, respectively, in Johannesburg (1 April, 2011), Durban (5 April, 2011), Port Elizabeth (8 April, 2011) and Cape Town (11 April, 2011) where, altogether, 1820 questionnaires were administered. The purpose of the first article was to determine what visitors at a major musical event regarded as critical management aspects, or as critical success factors (CSFs), for a memorable and satisfactory visitor experience. This was to aid major music event managers with information they could use to improve and ensure memorable visitor experiences in the future. A factor analysis was performed to determine the CSFs. Six factors were revealed, being General Management; Souvenirs; Marketing; Venue and Technical aspects; Accessibility and Parking; and Amenities and Catering. General Management, Venue and Technical aspects and Marketing were regarded as the most important CSFs for visitors to a major music event. It was subsequently confirmed that CSFs differed from one event to another. Thus it became clear that one set of CSFs cannot be used across each venue for events. By determining the CSFs, and through successfully managing these factors, major music events will ensure the retention of long term visitor goodwill, and so will remain competitive and sustainable. Neil Diamond presented four concerts at four different locations, The purpose of the second article was to determine the impact that location makes to the visitor experience at a major music event. Two-way frequency tables and Chi-square tests as well as ANOVAS and Turkey’s multiple comparisons were used to determine the differences between the four locations. Statistically significant differences were found, based on demographic, behavioural variables and motivational factors. Determining the effects these differences have provided major music event managers with superior knowledge in order to develop and manage future concerts at the differing destinations and locations. This research also help management to create a memorable visitor experience and so foster the promotion of future events more effectively to the target audiences, as well as potential sponsors. This specificity can also enhance bid documents for organisations and locations aiming at hosting major music events. This research revealed six critical success factors at a major music event. These CSFs can be used to enhance the visitor experience. However, it was also found that one set of CSFs cannot be used for every event as different locations regard different CSFs as being more important than others. Since major music events are often held at more than one location, it becomes critical to differentiate each location as the visitors to the various locations cannot be seen as homogeneous and so will have different needs and expectations. Thorough and informed knowledge of what is required for visitor satisfaction will not only ensure an improved event, but will enhance the visitor experience at such an event. This was the first time research was performed at major music events in South Africa that revealed the profile, motives, CSFs and spending behaviour of visitors to these events. Research not only provided information concerning the CSFs needed to manage the visitor experience at a major music event, but also provided an overall perspective of what visitors regard as important for a memorable visitor experience at four different geographic destinations hosting the same artist. This research contributes to the literature concerning the management of major music events and concerning the creation of memorable visitor experiences at these events. / Thesis (MA (Tourism Management))--North-West University, Potchefstroom Campus, 2012
46

De l'origine à la compréhension des crises, approche éco-systémique de la notion de crise, du déclenchement à la résolution / Of the origin in the understanding of the crises, systematic eco-approach of the notion of crisis, the release in the resolution

Donet-Mary, Lydéric 06 January 2017 (has links)
De la 1ère extinction massive il y a 443 millions d’années, à la catastrophe nucléaire de Fukushima en 2011, notre planète nous montre qu’elle est un organisme vivant en perpétuelle évolution. Alors que les catastrophes et les crises rythment l’humanité, il semble se révéler que les ruptures d’hier permettent les constructions de demain. Le concept polysémique de crise s’est imposé au travers des âges, pour nommer ce qui paraissait indéfinissable. En s’enrichissant de l’histoire ancienne et moderne, ce travail de recherche essaye d’appréhender la notion de crise dans son système. L’approche écosystémique contribue alors à bien discerner ce qui la caractérise. Ce travail effectué nous autorise alors à étudier ce qui constitue la nature de la crise. L’ambition étant de décrypter les ruptures pour éviter le chaos. Comme nous l’apprenait Antoine Lavoisier « rien ne se perd, rien ne se crée, tout se transforme ». Pour y arriver, les retours d’expériences et la théorisation des bonnes pratiques nous démontrent qu’il est nécessaire de bien discerner la nature de l’équilibre propre à notre système pour réussir à identifier les éléments du socle qui nous constitue. Il se révèle alors vital de déterminer ce qui constitue notre homéostasie, ce qui caractérise un écosystème qui résiste aux changements (perturbations) et arrive néanmoins à conserver un état d’équilibre. Cette analyse nous permet alors d’étudier et d’envisager les process nécessaires à mettre en place pour augmenter notre résilience. / From the 1st massive extinction 443 million years ago to Fukushima’s nuclear catastrophe in 2011, our planet never stopped demonstrating it is a living organism continually evolving. As disasters and crisis are pacing humanity, it seems that the past disruptions are leading to the future achievements. The polysemous nature of crisis has emerged through ages, to define the indefinable. Enriched with modern and ancient history, this study tries to circumscribe the notion of crisis. An ecosystem approach helps identifying its features. The work done allows us to study the origins of crisis. The ambition is to decipher disruptions in order to avoid chaos. As Antoine Lavoisier would put it « noting is lost, nothing is created, everything is transformed », but to succeed, best practices and operating experience show us that we must understand the real nature of our system, and clearly identify the basics. It is essential to identify what constitute our homeostasis, what are the features of an ecosystem that stands firm and maintain its balance, this analysis allows us to study and consider the necessary processes that must be implemented in order to increase our resilience.
47

Proposition d’une architecture de surveillance holonique pour l’aide à la maintenance proactive d’une flotte de systèmes mobiles : application au domaine ferroviaire / An intelligent agent-based monitoring architecture to help the proactive maintenance of a fleet of mobile systems : application to the railway field

Adoum, Ahmat Fadil 14 January 2019 (has links)
La maintenance de flottes de systèmes mobiles dans le monde du transport et de la logistique revêt de nos jours une importance croissante de par l’augmentation des attentes des exploitants et opérateurs en termes de sécurité, de fiabilité, de suivi, de diagnostic et de maintenance de ces systèmes. Dans ce contexte, Les mainteneurs des flottes doivent souvent faire face à d'énormes quantités de données brutes, informations et événements de surveillance liés aux contexte de leurs systèmes. De plus, ces événements, données et informations manquent souvent de précision et sont souvent contradictoires ou obsolètes. Enfin, le degré d'urgence des décisions de maintenance est rarement pris en compte. Ce travail est consacré à la proposition et à la mise au point d’une architecture de surveillance pour l’aide à la maintenance d’une flotte de systèmes mobiles. Cette architecture, appelée EMH², est destinée à faciliter le diagnostic et le suivi de ce type de flotte. Elle est construite sur les principes holoniques, des plus bas (capteurs) aux plus hauts niveaux (ensemble d’une flotte de systèmes mobiles). Elle se base également sur une standardisation des événements traités afin de traiter les données de manière générique. Cette architecture, indépendante des types de systèmes surveillés et de leur niveau hiérarchique, peut devenir l'épine dorsale d’une stratégie efficace de maintenance proactive d’une flotte. Une méthodologie de déploiement est ainsi proposée. Une étude en simulation et une application sur une flotte de 10 trains actuellement en service est présentée. / The maintenance of mobile systems fleets in the world of transport and logistics is of increasing importance today due to the increasing expectations of operators in terms of safety, reliability, monitoring, diagnosis and maintenance of these systems. In this context, fleet maintainers often have to deal with huge amounts of raw data, information and monitoring events related to the context of their systems. Moreover, these events, data and information are often lack precision and often contradictory or obsolete. Finally, the urgency of maintenance decisions is rarely taken into account. This work is devoted to the proposal and the development of a monitoring architecture to help maintain a fleet of mobile systems. This architecture, called EMH², is intended to facilitate the diagnosis and monitoring of this type of fleet. It is built on holonic principles, from the lowest (sensors) to the highest levels (a whole fleet of mobile systems). It is also based on a standardization of processed events in order to process the data generically. This architecture, independent of the types of systems monitored and their hierarchical level, can become the backbone of an effective strategy for proactive fleet maintenance. A deployment methodology is thus proposed. A simulation study and an application on a fleet of 10 trains currently in service is presented.
48

Optimization of cost-based threat response for Security Information and Event Management (SIEM) systems / Optimisation de la réponse aux menaces basée sur les coûts dans des systèmes pour la Sécurité de l'Information et la Gestion des Evénements (SIEMs)

Gonzalez Granadillo, Gustavo Daniel 12 December 2013 (has links)
Les SIEMs (systèmes pour la Sécurité de l'Information et la Gestion des Evénements) sont le cœur des centres opérationnels de sécurité actuels. Les SIEMs corrèlent les événements en provenance de différents capteurs (anti-virus, pare-feux, systèmes de détection d'intrusion, etc), et offrent des vues synthétiques pour la gestion des menaces ainsi que des rapports de sécurité. La recherche dans les technologies SIEM a toujours mis l'accent sur la fourniture d'une interprétation complète des menaces, en particulier pour évaluer leur importance et hiérarchiser les réponses. Toutefois, dans de nombreux cas, la réponse des menaces a encore besoin de l'homme pour mener l'analyse et aboutir à la prise de décisions, p.ex. compréhension des menaces, définition des contremesures appropriées ainsi que leur déploiement. Il s'agit d'un processus lent et coûteux, nécessitant un haut niveau d'expertise, qui reste néanmoins sujet à erreurs. Ainsi, des recherches récentes sur les SIEMs ont mis l'accent sur l'importance et la capacité d'automatiser le processus de sélection et le déploiement des contremesures. Certains auteurs ont proposé des mécanismes automatiques de réponse, comme l'adaptation des politiques de sécurité pour dépasser les limites de réponses statiques ou manuelles. Bien que ces approches améliorent le processus de réaction (en le rendant plus rapide et/ou plus efficace), ils restent limités car ces solutions n'analysent pas l'impact des contremesures choisies pour atténuer les attaques. Dans cette thèse, nous proposons une nouvelle approche systématique qui sélectionne la contremesure optimale au travers d'un ensemble de candidats, classés sur la base d'une comparaison entre leur efficacité à arrêter l'attaque et leur capacité à préserver, simultanément, le meilleur service aux utilisateurs légitimes. Nous proposons également un modèle pour représenter graphiquement les attaques et les contre-mesures, afin de déterminer le volume de chaque élément dans un scénario de multiples attaques. Les coordonnées de chaque élément sont dérivés d'un URI . Ce dernier est composé principalement de trois axes : l’utilisateur, le canal et le ressource. Nous utilisons la méthodologie CARVER pour donner un poids approprié à chaque élément composant les axes de notre système de coordonnées. Cette approche nous permet de connecter les volumes avec les risques (p.ex. des grands volumes sont équivalents à des risques élevés, tandis que des petits volumes sont équivalents à des risques faibles). Deux concepts sont considérés en comparant deux ou plusieurs volumes de risques: le risque résiduel, qui résulte lorsque le volume du risque est plus élevé que le volume de la contre-mesure, et le dommage collatéral, qui en résulte lorsque le volume de la contre-mesure est supérieur au volume du risque. En conséquence, nous sommes en mesure d'évaluer les contre-mesures pour des scénarios d'attaques individuelles et multiples, ce qui permet de sélectionner la contre-mesure ou groupe de contre-mesures qui fournit le plus grand bénéfice à l'organisation / Current Security Information and Event Management systems (SIEMs) constitute the central platform of modern security operating centers. They gather events from various sensors (intrusion detection systems, anti-virus, firewalls, etc.), correlate these events, and deliver synthetic views for threat handling and security reporting. Research in SIEM technologies has traditionally focused on providing a comprehensive interpretation of threats, in particular to evaluate their importance and prioritize responses accordingly. However, in many cases, threat responses still require humans to carry out the analysis and decision tasks e.g., understanding the threats, defining the appropriate countermeasures and deploying them. This is a slow and costly process, requiring a high level of expertise, and remaining error-prone nonetheless. Thus, recent research in SIEM technology has focused on the ability to automate the process of selecting and deploying countermeasures. Several authors have proposed automatic response mechanisms, such as the adaptation of security policies, to overcome the limitations of static or manual response. Although these approaches improve the reaction process (making it faster and/or more efficient), they remain limited since these solutions do not analyze the impact of the countermeasures selected to mitigate the attacks. In this thesis, we propose a novel and systematic process to select the optimal countermeasure from a pool of candidates, by ranking them based on a trade-off between their efficiency in stopping the attack and their ability to preserve, at the same time, the best service to normal users. In addition, we propose a model to represent graphically attacks and countermeasures, so as to determine the volume of each element in a scenario of multiple attacks. The coordinates of each element are derived from a URI. This latter is mainly composed of three axes: user, channel, and resource. We use the CARVER methodology to give an appropriate weight to each element composing the axes in our coordinate system. This approach allows us to connect the volumes with the risks (i.e. big volumes are equivalent to high risk, whereas small volumes are equivalent to low risk). Two concepts are considered while comparing two or more risk volumes: Residual risk, which results when the risk volume is higher than the countermeasure volume; and Collateral damage, which results when the countermeasure volume is higher than the risk volume. As a result, we are able to evaluate countermeasures for single and multiple attack scenarios, making it possible to select the countermeasure or group of countermeasures that provides the highest benefit to the organization
49

A spending behaviour model for selected South African arts festivals / Veronique Labuschagne

Labuschagne, Veronique January 2014 (has links)
Arts festivals form a large part of the South African culture originally as many local communities began to share their culture with visitors by means of arts festivals. This has grown into a large industry that has tremendous financial gain for the hosting communities. With over 500 arts festivals each year in South Africa alone, visitors are certain to find a festival to satisfy their specific needs and wants. Therefore, with so many genres available, each festival has created its own niche market and loyal customer base. An extensive literature study was conducted for the purpose of this thesis and it was found that research of small to medium arts festivals has been neglected. This finding motivated the main theme of this research. As mentioned earlier, there are so many genres available that the festival organisers may experience difficulty when deciding what to offer and how many genres to offer in order to still be sustainable and attract a sufficient number of visitors. Furthermore, the large number of arts festivals organised each year makes it increasingly difficult for festivals to build a loyal client base. First-time visitors can be converted into repeat visitors if the marketing strategy is precise. Repeat visitors, as stated in the literature, results in a sustainable income for each festival. Another question that motivated the research was the location of the three arts festivals (Innibos, Vryfees, and Kierieklapper). Three arts festivals in three provinces makes an interesting study to determine whether there is a difference in the three types of visitors that they attract and the spending patterns at each festival. While addressing the problems stated above, this study produced the following three articles: * Article 1: ―Determinants of spending at Vryfees with a focus on genres‖. * Article 2: ―First-time versus repeat visitors at Innibos Arts Festival‖. * Article 3: ―Role of location in the attendance and spending of festinos‖. Article 1 investigates spending determinants that influence visitor expenditure on the different genres offered at the Vryfees Festival in Bloemfontein, based on a survey conducted in 2011. The research is based on the notion that different genres have different spending patterns. Article 2 focuses on the differences and/or similarities between first-time and repeat visitors at the Innibos Arts Festival as an alternative approach to market segmentation. Lastly, the third article focuses on three different arts festivals in three different locations in South Africa. The research was conducted by means of a visitor survey at the three arts festivals during the same year with questionnaires administered at Innibos (428), Vryfees (336), and Kierieklapper (202) respectively. The most significant contributions of this study can be summarised as follows: * the tourist spending behaviour in regards to the difference between first-time and repeat visitors is significant and can be considered an important spending determinant; * the tourist spending behaviour in terms of length of stay between first-time visitors and repeat visitors is significantly different, suggesting that familiarity with the destination (as the repeat visitors are) has an important impact; * different locations attract their own type of tourists and certain locations receive a higher economic injection than other provinces do because of the type of festival held. All three arts festivals attract mainly Afrikaans speaking attendees; and for the first time, a comparative study has been conducted on three arts festivals targeting the Afrikaans speaking community. Additionally, this is the first time a comparative study was conducted on three small to medium arts festivals located in three different provinces; and * the developed spending model described in the last chapter of this thesis can assist the festival organisers with future festival marketing to improve their income and marketing strategy. / PhD (Tourism Management), North-West University, Potchefstroom Campus, 2014
50

A spending behaviour model for selected South African arts festivals / Veronique Labuschagne

Labuschagne, Veronique January 2014 (has links)
Arts festivals form a large part of the South African culture originally as many local communities began to share their culture with visitors by means of arts festivals. This has grown into a large industry that has tremendous financial gain for the hosting communities. With over 500 arts festivals each year in South Africa alone, visitors are certain to find a festival to satisfy their specific needs and wants. Therefore, with so many genres available, each festival has created its own niche market and loyal customer base. An extensive literature study was conducted for the purpose of this thesis and it was found that research of small to medium arts festivals has been neglected. This finding motivated the main theme of this research. As mentioned earlier, there are so many genres available that the festival organisers may experience difficulty when deciding what to offer and how many genres to offer in order to still be sustainable and attract a sufficient number of visitors. Furthermore, the large number of arts festivals organised each year makes it increasingly difficult for festivals to build a loyal client base. First-time visitors can be converted into repeat visitors if the marketing strategy is precise. Repeat visitors, as stated in the literature, results in a sustainable income for each festival. Another question that motivated the research was the location of the three arts festivals (Innibos, Vryfees, and Kierieklapper). Three arts festivals in three provinces makes an interesting study to determine whether there is a difference in the three types of visitors that they attract and the spending patterns at each festival. While addressing the problems stated above, this study produced the following three articles: * Article 1: ―Determinants of spending at Vryfees with a focus on genres‖. * Article 2: ―First-time versus repeat visitors at Innibos Arts Festival‖. * Article 3: ―Role of location in the attendance and spending of festinos‖. Article 1 investigates spending determinants that influence visitor expenditure on the different genres offered at the Vryfees Festival in Bloemfontein, based on a survey conducted in 2011. The research is based on the notion that different genres have different spending patterns. Article 2 focuses on the differences and/or similarities between first-time and repeat visitors at the Innibos Arts Festival as an alternative approach to market segmentation. Lastly, the third article focuses on three different arts festivals in three different locations in South Africa. The research was conducted by means of a visitor survey at the three arts festivals during the same year with questionnaires administered at Innibos (428), Vryfees (336), and Kierieklapper (202) respectively. The most significant contributions of this study can be summarised as follows: * the tourist spending behaviour in regards to the difference between first-time and repeat visitors is significant and can be considered an important spending determinant; * the tourist spending behaviour in terms of length of stay between first-time visitors and repeat visitors is significantly different, suggesting that familiarity with the destination (as the repeat visitors are) has an important impact; * different locations attract their own type of tourists and certain locations receive a higher economic injection than other provinces do because of the type of festival held. All three arts festivals attract mainly Afrikaans speaking attendees; and for the first time, a comparative study has been conducted on three arts festivals targeting the Afrikaans speaking community. Additionally, this is the first time a comparative study was conducted on three small to medium arts festivals located in three different provinces; and * the developed spending model described in the last chapter of this thesis can assist the festival organisers with future festival marketing to improve their income and marketing strategy. / PhD (Tourism Management), North-West University, Potchefstroom Campus, 2014

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