Cette thèse vise à mieux comprendre les décisions individuelles des acteurs des marchés de l'assurance et de la réassurance face à différents types d'information, la couverture des risques extrêmes, et les arrangements contractuels entre assureurs et réassureurs. Le contexte général de l'assurance des risques extrêmes est marqué par une intensification et un accroissement des catastrophes naturelles et industrielles depuis une vingtaine d'années dans le monde, ce qui rend délicat une évaluation correcte des caractéristiques des événements et questionne l'assurabilité de ces risques du fait de la présence d'incertitudes. La thèse est constituée de deux parties utilisant une large palette d'outils quantitatifs. La première partie se concentre sur l'analyse des effets de l'information sur les décisions d'assurance, en particulier sur les primes que les agents sont prêts à payer ou accepter pour transférer ou supporter des risques spécifiques. L'information disponible peut donner lieu à des situations de risque ou d'ambiguïté, en distinguant deux types d'ambiguïté: l'imprécision, situation dans laquelle l'information est consensuelle mais imprécise, et le conflit, situation où il y a désaccord entre experts. Cette partie s'appuie sur des enquêtes distribuées auprès d'un échantillon représentatif de la population en tant qu'acheteurs potentiels d'assurance (chapitre 2) ou auprès de professionnels de l'assurance (chapitre 3) afin d'étudier les comportements d'assurance du côté de l'offre et de la demande. Cette partie présente aussi une approche expérimentale de ces comportements avec rémunération des participants (chapitre 4). La seconde partie étudie le marché de la réassurance. Après avoir présenté les spécificités et mécanismes de ce marché (chapitre 5), l'offre de réassurance est analysée à travers des comportements d'enchères de réassureurs (chapitre 6). A partir d'une base de données exclusive, cette partie détermine les facteurs explicatifs des primes de réassurance qui dépendent des caractéristiques des risques, mais également de celles des traités, des réassureurs et du marché.

The use of security assurance cases (security cases) to provide evidence-based assurance of security properties in software is a young field in Software Engineering. A security case uses evidence to argue that a particular claim is true. For example, the highest-level claim may be that a given system is sufficiently secure, and it would include sub claims to break that general claim down into more granular, and tangible, items - such as evidence or other claims. Random negative testing (fuzz testing) is used as evidence to support security cases and the assurance they provide. Many current approaches apply fuzz testing to a target system for a given amount of time due to resource constraints. This may leave entire sections of code untouched [60]. These results may be used as evidence in a security case but their quality varies based on controllable variables, such as time, and uncontrollable variables, such as the random paths chosen by the fuzz testing engine. This thesis presents Hermes, a proof-of-concept fuzz testing framework that provides improved evidence for security cases by automatically targeting problem sections in software and selectively fuzz tests them in a repeatable and timely manner. During our experiments Hermes produced results with comparable target code coverage to a full, exhaustive, fuzz test run while significantly reducing the test execution time that is associated with an exhaustive fuzz test. These results provide a targeted piece of evidence for security cases which can be audited and refined for further assurance. Hermes' design allows it to be easily attached to continuous integration frameworks where it can be executed in addition to other frameworks in a given test suite. / Graduate / 0984 / cshortt@uvic.ca

No description available.

No description available.

Thesis (Ph. D.)--University of Hawaii at Manoa, 1995. / Includes bibliographical references (leaves 376-389). / Microfiche. / 2 v. (xix, 389 leaves, bound) ill. 29 cm

AIMS:The project examines the perceptions of significant stakeholders in the Catholic Education system concerning the nature, outcomes and effectiveness of the implementation of the Quality Assurance Processes developed by the Catholic Education Office (CEO), in the Archdiocese of Sydney. The study identifies factors that were assisting or hindering the effective implementation of these processes as they existed in 1996. It offers suggestions and recommendations for a future and more effective implementation of these processes. SCOPE This research is qualitative in nature, and uses interview as the main source of data collection. The Catholic schools selected for this study are those that have been involved in the implementation of the first Cycle of the Quality Assurance Processes of the CEO, Sydney. Care was taken to select two schools from each of the three Regions under which the Catholic schools in the Archdiocese of Sydney are presently organised. CONCLUSIONS The achievement and maintenance of quality outcomes has always been an integral part of Catholic Education. Through the brief historical background, this study has revealed that leaders in Catholic Education in Sydney have always sought to achieve and maintain quality outcomes since the establishment of the first schools, up until the implementation of the current quality assurance processes. This study found that the current form of Quality Assurance Processes is a most effective means of achieving and maintaining quality outcomes in the present-day Catholic education system. The Processes are professionally articulated in context with current practices, and have the potential to enhance accountability, credibility and development of both the personnel and the schools system. The implementation of the Quality Assurance Processes, to a great degree, has been effective and successful, the present study has shown that, stakeholders are becoming more and more aware of the actual nature and outcomes of these processes. The study also found great optimism among in the key player about the future of the Processes and has concluded that they well received and appreciated across the system. There were a few concerns about the clarity of aims and objectivity, the link between the different processes, and the apparently high and technical terms involved in naming/describing these Processes. The study has, therefore, concluded further that the Processes need streamlining, regular reviews and training programs to strengthen the practice and consolidate the gains and achievement. The implementation of Cycle 2 with appropriate modification is desirable.

This study of four domestic abattoirs in South Australia with Quality Assurance programmes in place established the size of bacterial populations that could be expected on pig carcasses on entry to abattoir dressing floors at pre-evisceration, the extent of contamination occurring during carcass dressing, and the effect of chilling on these populations. Analysis was conducted for salmonellae, Escherichia coli, Total Viable Count, and pseudomonads. Exterior swabbing was compared to swabbing of corresponding interior sites which are sterile initially. The interior swabbing sites were found to be a more reliable measure of contamination during the dressing process than the swabbing of already contaminated exterior sites. During the identification of some of the points of carcass contamination, the effectiveness of end-of-work foam cleaning programmes used at abattoir dressing floors and their relationship to the potential for airborne contamination of carcasses was examined and found to be positive. Operators' work tools and hands were identified as sources of interior carcass contamination combined with failure of operators to adhere to Standard Operating Procedures (SOPs) during carcass dressing, especially those related to hand and forearm washing at appropriate times. Foot-operated full-immersion hot water units for operators' knives and steels were designed and installed at two abattoirs to give operators access to physically and biologically clean work tools throughout carcass dressing. / PhD Doctorate

Thesis (Ph. D. in Religion)--Vanderbilt University, May 2008. / Title from title screen. Includes bibliographical references.

Thesis (PhD.(Assessment and Quality Assurance))-University of Pretoria, 2007. / Includes bibliographical references (leaves 301-333) Available on the Internet via the World Wide Web.

Thesis (PhD.(Education))-University of Pretoria, 2007. / Includes bibliographical references. Available on the Internet via the World Wide Web.