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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

An?lise matricial nebulosa de indicadores para apoio a tomada de decis?o na governan?a corporativa de TIC

Siqueira, Ana Raquel Calais 06 December 2013 (has links)
Made available in DSpace on 2016-04-04T18:31:38Z (GMT). No. of bitstreams: 1 Ana_Raquel_Calais_Siqueira.pdf: 3864098 bytes, checksum: fc1d0dc108a87c6e39814a0d062d8d7e (MD5) Previous issue date: 2013-12-06 / Decision making in organizational settings has an implicit risk, since there is a degree of uncertainty about the future, in different areas like economic, governmental, customer and employee behavior, among others. Ergo, increasingly objective and clear tools like systems, processes, standards, practices, etc., must be available, supporting the business decision maker in their complex task. In this context, and given that ITC is the ground to maintain organization s operations in a structured way, the study of Governance Models for ITC is needed to retain and improve its internal controls. However, observing the different perspectives involving investment decision in ITC projects, we can realize how that model s information can be misused, neglected or misrepresented. Therefore, the Fuzzy Logic, that works with imprecision, uncertainty and partial truth, makes possible to translate and treat various scenarios, in order that computers, which deals with the absolute precision, can list and organize the information, supporting the decision making process. This paper proposes a new exempt method for fuzzy analysis, based upon mathematical operations between arrays, which allow the development of simpler and faster computational algorithms, thus increasing its utilization and enabling its codification in any computer language. Three real scenarios were used to verify its feasibility and results validation. Three real case studies were used to verify the method?s feasibility and to validate their results: Support for decision making in ICT corporate governance, analysis and study of the wireline exploration in Brazilian market and support decision making on the offensive element of a wireless network. The achieved results were satisfactory in all three case studies, showing that the method is general and good. / A tomada de decis?o em ambientes organizacionais possui um risco impl?cito, uma vez que existe um grau de incerteza quanto ao futuro, nos diversos ?mbitos: econ?mico, governamental, comportamental dos clientes e funcion?rios, etc. Da? a import?ncia de apoiar o tomador de decis?es empresariais em sua complexa tarefa com ferramentas (sistemas, processos, padr?es, pr?ticas, etc.) cada vez mais objetivas e claras. Neste contexto, e tendo em vista que a Tecnologia da Informa??o e Comunica??o (TIC) ? a base de sustenta??o para que as organiza??es mantenham suas opera??es de forma estruturada, o estudo dos modelos de governan?a em TIC ? necess?rio para manter e melhorar seus controles internos. Por?m, ao observar as diferentes perspectivas que envolvem o processo decis?rio para investimento em projetos de TIC, pode-se identificar a maneira como as informa??es daqueles modelos podem ser mal utilizadas, negligenciadas ou deturpadas. Assim, a L?gica Nebulosa que trabalha com a imprecis?o, incerteza ou verdade parcial torna poss?vel traduzir e tratar diversos cen?rios, de modo que os computadores, que s? conhecem a precis?o absoluta, possam relacionar e organizar as informa??es, apoiando o processo de tomada de decis?o. Este trabalho prop?e um novo m?todo generalista para An?lise Nebulosa, baseado em opera??es entre matrizes matem?ticas, que permite o desenvolvimento de rotinas computacionais mais simples e r?pidas, ampliando consequentemente sua utiliza??o e permitindo sua codifica??o em qualquer linguagem computacional. Para verifica??o de sua viabilidade e valida??o de seus resultados foram utilizados tr?s estudos de caso reais: Apoio ? tomada de decis?o na Governan?a corporativa de TIC, An?lise e estudo da prospec??o da Telefonia Fixa no Brasil e Apoio ? Tomada de Decis?o sobre o elemento ofensivo em uma rede Wireless. O resultado foi satisfat?rio nos tr?s estudos de caso, provando que o m?todo ? generalista e satisfat?rio.

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