The information has become a valuable asset for organizations, and computer systems, is subject to various types of threats. Risk management is responsible for ensuring the integrity, confidentiality and availability of this information, identifying key vulnerabilities and threats that surround an information system. To ensure the protection of assets and reduce the incidence of security breaches, it is necessary to adopt risk management practices. Several methods have been proposed for this purpose, however, some differ significantly from each other and may result in classifying different measurements, even when applied to the same domain. This thesis proposes a methodology for analysis and risk assessment, which uses the composition of methods for more accurate results, where the risk of higher priority is obtained by weighting the methods analyzed. In order to validate the proposed methodology, we developed a computational tool that automates all stages of the process and performs the calculations necessary to prioritize the risks. The application scenario was the Data Processing Center, Federal University of Santa Maria. As a result, we obtained risk indicators potentially more accurate, since they reflect the risks prioritized based on weighting of the methods analyzed. / A informação tornou-se um ativo valioso para as organizações e, em sistemas computacionais, está sujeita a diversos tipos de ameaças. A gestão de riscos é responsável por garantir a integridade, a confidencialidade e a disponibilidade dessas informações, identificando as principais vulnerabilidades e ameaças que cercam um sistema de informação. Para assegurar a proteção dos ativos e diminuir a incidência de falhas de segurança, é necessário adotar práticas de gerenciamento de riscos. Vários métodos já foram propostos com esse objetivo, no entanto, alguns divergem significativamente entre si, podendo resultar em quantificações classificatórias divergentes, mesmo sendo aplicados em um mesmo domínio. Este trabalho propõe uma metodologia para análise/avaliação de riscos, que utiliza a composição de métodos para obter resultados mais precisos, onde o risco de maior prioridade é obtido através da ponderação dos métodos analisados. Com o objetivo de validar a metodologia proposta, foi desenvolvida uma ferramenta computacional que automatiza todas as fases da metodologia e realiza os cálculos necessários para priorizar os riscos existentes. O cenário de aplicação foi o Centro de Processamento de Dados da Universidade Federal de Santa Maria. Como resultado, obteve-se indicadores de risco potencialmente mais precisos, uma vez que refletem os riscos priorizados com base na ponderação dos métodos analisados.

Breast cancer is the most common cancer and the second most common cause of cancer death in women. In 2008 there were 182,460 women diagnosed with breast cancer, and 40,480 women died of this disease. Breast cancer can be prevented by medical (tamoxifen or raloxifene) or surgical approaches (bilateral mastectomy or oophorectomy). Prevention is only recommended for women at high risk for developing breast cancer; therefore, proper risk calculation is essential in identifying women that may benefit from prevention measures. There is an easy-to-use and easily accessible risk calculation tool for determining a woman's risk of developing breast cancer and need for referral for counseling, gene testing, and possibly preventive therapy. This article reviews the components of risk assessment, the most frequently used risk calculation tool, and approaches to breast cancer risk reduction including medical and surgical therapies. The use of these therapies results in a risk reduction of 50-90%.

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The thesis aims to introduce the issue of health and safety in construction. The issue of safety at work is explained in the first part of the theoretical part. Problems of hygiene are explained in the second part. The practical part deals with the mapping of the situation in the construction industry and occupational health and safety plan.

The aim of the diploma thesis is to describe risk management in a construction company. The first part of the diploma thesis is focused on theory, which deals with the explanation of basic concepts with risks and risk management in a construction company. The second, practical part addresses the risks of a specific project.