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Uma metodologia para defini??o de modelos de cobran?a em ambientes de nuvens computacionaisLanger, Silvio Augusto 28 March 2015 (has links)
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Previous issue date: 2015-03-28 / Nowadays cloud computing is considered a new concept for the provision of computational infrastructure. In this environment, clients can access and use software, platform or infrastructure as a service to reduce their costs, compared to the traditional values of datacenter model. To make this feasible, customers are charged by the use of computer resources by means of a charging model. These models determine how the use of any product or service will be paid by a client to a service provider. However, the definition of a charging model involves the execution of a series of processes so that is possible to identify the best parameters of the model for each provider. Therefore, it is necessary to clearly define the type of service that the provider adopts and the products you want to offer to the market. Moreover, it is necessary to verify the sales strategies adopted by the provider and the cost of operation. These difficulties were also found by PUCRS High Performance Laboratory (LAD-PUCRS). To facilitate this process, this paper presents a methodology to define and optimize charging models for providers of cloud computing. The method was applied in the LAD, which resulted in several improvements to the charging models used by the laboratory. Furthermore, the application of the methodology in this case study was evaluated and contributed to its improvement. / Atualmente, as nuvens computacionais s?o consideradas um novo conceito para o fornecimento de infraestrutura computacional. Neste ambiente, os clientes acessam e utili-zam software, plataforma ou infraestrutura como servi?os, sendo cobrados por seu uso. H? dificuldades entre os provedores em definir um modelo de cobran?a para esse ambiente por envolver a execu??o de uma s?rie de processos na identifica??o dos melhores par?-metros, considerando requisitos espec?ficos dos modelos de servi?os, da infraestrutura dis-pon?vel, dos produtos ofertados e dos clientes, e tamb?m, das estrat?gias de venda e do custo de opera??o por parte do provedor. Uma metodologia para defini??o de modelos de cobran?a foi elaborada em fun??o do problema descrito mediante a revis?o da literatura e de pr?ticas reconhecidas de cobran?a. Foram constru?dos oito formul?rios, abarcando os processos da metodologia e submetidos aos respons?veis pelo Laborat?rio de Alto Desem-penho da PUCRS, conforme os procedimentos de estudo de caso ?nico. Pela metodologia s?o sugeridos novos par?metros para os modelos de cobran?a bem como indica??o de um novo produto: armazenamento al?m, das j? existentes, VM?s 24x7 e cluster. A metodologia aplicada refere-se a um caso ?nico, por?m, permite seu uso extensivo a outros casos, in-clusive, para sua valida??o.
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Uma aplica??o de an?lise de decis?o com o m?todo AHP Processo de hierarquia anal?tica: um estudo sobre ado??o de Sistema eletr?nico de cobran?a no Transporte p?blico urbano / An application analysis of decision with method AHP (Analytical Hierarchy Process) - Process of analytical hierarchy: a study on adoption of electroni system of collection in the urban public transportSena, Lunardo Alves de 16 August 2007 (has links)
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Previous issue date: 2007-08-16 / This thesis carries through an application of Analysis of Multicriterion Decision with use of the method of Analytical Hierarchy Process (AHP) in the problematic one of taking of
decision of the adoption of electronic collecting in the system of urban transport in the country, a subject that has been controversial. A modeling of criteria and alternatives is
carried through and applied a questionnaire based on method AHP the excellent actors in the system of urban transport - Leading of the Managing Agency Public Municipal theatre
of Urban Transports, Controller of Company of Bus, Controller of Labor union, Controller of Union of Companies, Communitarian Leader. The considered alternatives were: the
maintenance of the current state with collectors, the implementation of electronic collection without collectors, and the implementation of electronic collection with collectors. The used criteria were: job, impact in the fare, control of the system, easiness of use, information. The study was carried through in the city of Natal, RN, where if the adoption of electronic collection argues and where this implementation in some bus lines between Natal and Parnamirim exists, city that integrates the region of the great Natal. The main results of the method evidence in a dimension, the viability of use of method AHP with questionnaire by means of validation of the judgments with analysis of variance beyond proper the normal mechanisms of analysis of consistency to the method, and in
another one, the contribution of the analysis boarding multicriterion to become the judgments more clearly. The main results of the analysis help to show that although to
models of criteria and distinct judgments of the actors, the method evidenced that it has inclination the adoption of the electronic collection on the current situation, even so with
divergences between the maintenance or not of the collector. The research points to the possibility of accomplishment of the application of the AHP in successive rounds of
judgments / Esta Disserta??o de Mestrado realiza uma aplica??o de An?lise de Decis?o Multicrit?rio com uso do m?todo de Processo de Hierarquia Anal?tica (Analytical Hierarchy Process AHP) na problem?tica de tomada de decis?o da ado??o de bilhetagem eletr?nica no sistema de transporte urbano no pa?s, um assunto que tem sido controverso. ? realizada uma modelagem de crit?rios e alternativas e aplicado um question?rio baseado no m?todo AHP a atores relevantes no sistema de transporte urbano Dirigente do ?rg?o Gestor
P?blico Municipal de Transportes Urbanos, Dirigente de Empresa de ?nibus, Dirigente de Sindicato de Trabalhadores, Dirigente de Sindicato de Empresas, L?der Comunit?rio. As
alternativas consideradas foram: a manuten??o do estado atual com cobradores, a implementa??o de bilhetagem eletr?nica sem cobradores, e a implementa??o de bilhetagem
eletr?nica com cobradores. Os crit?rios utilizados foram Emprego, Impacto na Tarifa, Controle do Sistema, Facilidade de Uso, Informa??o. O estudo foi realizado na cidade de
Natal, RN, onde se discute a ado??o de bilhetagem eletr?nica e onde existe essa implementa??o em algumas linhas entre Natal e Parnamirim, cidade que integra a regi?o da
Grande Natal. Os principais resultados do m?todo evidenciam em uma dimens?o a viabilidade de uso do m?todo AHP com question?rio mediante valida??o dos julgamentos
com an?lise de vari?ncia al?m dos mecanismos normais de an?lise de consist?ncia pr?prios ao m?todo, e em outra a contribui??o da abordagem de an?lise multicrit?rio para tornar
mais claro os julgamentos. Os principais resultados da an?lise ajudam a mostrar que apesar de modelos de crit?rios e julgamentos distintos dos atores, o m?todo evidenciou que h?
domin?ncia final da ado??o da bilhetagem eletr?nica sobre o estado atual, embora com diverg?ncias entre a manuten??o ou n?o do cobrador. A pesquisa aponta para a possibilidade de realiza??o da aplica??o do AHP em rodadas de julgamentos sucessivas
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