L'objectif de ce travail est de fournir des modèles et outils pour simplifier la construction des systèmes distribués à base de composants sécurisés, ainsi que la gestion des propriétés de sécurité, en utilisant des outils de haut niveau d'abstraction pour la configuration et la reconfiguration dynamique. En plus des propriétés d'accessibilité et de communications sécurisées classiques, nous focalisons notre travail sur une propriété des systèmes répartis plus générale : la non-interférence. Cette propriété atteste qu'il ne doit pas y avoir de flux d'information entre des parties publiques et privées du système. Ce qui implique le suivi de l'acheminement de l'information entre les différentes composantes du système distribué. Notre objectif principal est donc de proposer un modèle, accompagné d'un ensemble d'outils, garantissant la propriété de la non-interférence à la construction du système, et ce à une plus grosse granularité : celle des composants. Ces outils permettent de (1) configurer les paramètres de sécurité des composants et des liaisons entre eux, (2) vérifier la propriété de non-interférence dans le code d'un composant et entre les différents composants du système et (3) générer automatiquement le code nécessaire pour appliquer ces propriétés de sécurité. D'autre part, nous proposons une architecture permettant de vérifier dynamiquement la propriété de non-interférence dans un système réparti. / The goal of this thesis is to provide models and tools to simplify secured component-based distributed systems' construction and the management of their security properties, by using high-level tools for dynamic configuration and reconfiguration. In addition to the classic properties of accessibility and secured communications, we focus on a more general security property of distributed systems : the non-interference. This property says that there mustn't be information flow between secret and public parts of the system ; which requires information flow control across the system. Our main objective is to propose a model and set of tools guarantying the non-interference property at compiletime, and at a bigger granularity : the components. These tools are (1) tools for configuring security parameters of components and binding between components, (2) a compiler checking the non-interference property, and (3) tools for automatic generation of code assuring these security properties. On the other hand, we present an architecture enabling a dynamic verification of the non-interference property in a distributed system.

Till följd av att dagens samhälle blir allt mer präglad av den ständiga strömmen av information ställer det krav på byggentreprenören att börja ta kontroll över deras informationshantering. Utvecklingen av digitalisering har också bidragit till att synliggöra denna problematik. I dagsläget saknas det däremot hjälpmedel eller metoder för att kunna kartlägga eller mäta andelen slöseri i ett informationsflöde. Syftet med detta arbete är därmed att ta fram en metodik, för att kunna identifiera kritiskt slöseri samt rotorsaken till dess uppkomst för processen från avrop till materialleverans på husbyggnadsprojekt. Syftet är också att utreda hur implementering av digitala lösningar skulle kunna påverka informationsflödet eller bidra till att reducera slöseri. Inom ramen för detta arbete har tre stycken leverantörer till byggentreprenören Skanska Sverige studerats. Insamlingen av datamaterialet har utgått ifrån en metodik vilken är baserad på en kombination av en kvalitativ och en kvantitativ studie. Framtagna analysmodeller har sedan använts för att utreda andelen kritiskt slöseri i leverantörernas informationsflöde. Utifrån det insamlande datamaterialet kan det konstateras att kritiskt slöseri för processen från avrop till materielleverans uppkommer vid externa ändringar, att två personer producerar samma information, begränsningar i kommunikationssätt, att information saknas samt vid för mycket information. Rotorsakerna till nämnt kritiskt slöseri, vilka behöver åtgärdas för att förbättra informationsflödet, konstaterades vara manuell överföring av information samt konfiguration mellan olika system. Resultatet visar på att de två framtagna digitala lösningarna kan bidra till att reducera kritiskt slöseri i processen. Rekommendationen är därmed att det i ett första skede är mest relevant att åtgärda de slöseri vilka identifieras vara kritiska. Detta genom att börja ta kontroll över informationen genom förändrade arbetssätt och tydligare rutiner för kommunikation. / The constant flow of information in today’s society, as well as the rapid evolving of digitalisation, has contributed to the requirement of continuous improvement in information management for contractors in the construction industry. However, in the current situation there are no tools or methods that enable mapping of waste in the information flow. Therefore, the aim of this paper is to develop a method for how to identify critical waste in the information flow, from call off to delivery of material at the construction site, and determine the root cause. Furthermore, the intention is also to investigate possibilities with implementation of digital solutions and discuss how it could affect information flow or contribute to reduction of waste. The scope of this study has included an investigation of three suppliers to the construction contractor Skanska. A combined qualitative and a quantitative study has been a basis for the gathering of information. The developed methods were then used to examine the existing waste in the supplier’s information flow. The obtained results clarify that waste in the information flow, from call off to delivery of material at the construction site, occur during external changes, when two individuals produce the same information, when there are constraints in communication channels, missing information or information overload. The identified root causes of these critical wastes were manual transitions of information as well as the configuration between different systems. Two developed digital solutions demonstrate the possibilities in reduction of critical waste in the process. Therefore, the final recommendation is to primarily start by reducing waste that is identified to be most critical in the information flow. To achieve this, a requirement is to take control over the information, by improved course of action and routines for communication.

Submitted by Priscilla Araujo (priscilla@ibict.br) on 2015-11-24T18:03:09Z No. of bitstreams: 2 license_rdf: 21267 bytes, checksum: 73e23c2acaaf13389e092bd813e3223d (MD5) mestrado_alexandre_marcolino_2015.2.pdf: 3540013 bytes, checksum: 37b5cdb22b9092e9a799dc934a81620e (MD5) / Made available in DSpace on 2015-11-24T18:03:09Z (GMT). No. of bitstreams: 2 license_rdf: 21267 bytes, checksum: 73e23c2acaaf13389e092bd813e3223d (MD5) mestrado_alexandre_marcolino_2015.2.pdf: 3540013 bytes, checksum: 37b5cdb22b9092e9a799dc934a81620e (MD5) Previous issue date: 2015-03-09 / Pesquisa de caráter qualitativo, cujo objetivo geral foi identificar contribuições do mapeamento de fluxos de informação para o planejamento de sistemas de informação de apoio à decisão estratégica. A metodologia adotada foi o Estudo de Caso. O caso escolhido foi o processo de planejamento estratégico da Embrapa Solos, unidade descentralizada de pesquisa da EMBRAPA. As duas técnicas de coleta de dados utilizadas foram a observação não participante, durante reuniões de planejamento, e entrevistas com os principais gestores da Unidade. A análise de conteúdo foi a ferramenta metodológica empregada para a análise dos dados coletados. Os resultados apontam que os fluxos de informação mapeados podem contribuir com o planejamento de sistemas de informação estratégica por meio da identificação de elementos (pessoas, processos, informações e tecnologias de apoio) essenciais para o seu correto funcionamento. Considera-se que foi possível identificar, também, não conformidades nos fluxos de informação que podem indicar riscos aos projetos de sistemas de informação. No âmbito da gestão da informação, a utilização de sistemas de informação de apoio à decisão estratégica tem se tornado um importante aliado na busca pela melhor estratégia empresarial. Esta pesquisa contribui com o planejamento de tais sistemas, no sentido de indicar um método de análise do ambiente no qual pretende-se implantar tal sistema. / Qualitative research that aimed to identify contributions for planning Strategic Decisions Support Systems (SDSS), by mapping information flows. The methodology adopted was a Case Study over a strategic planning process carried out at Embrapa Solos (a decentralized research branch of EMBRAPA). Interviews and nonparticipant observation were the two data collection tools used. Content Analysis was the methodological technique applied for data analysis. The results indicate that information flows when mapped shall contribute to identify elements (people, processes, information and technology) that are essential for SDSS planning and effectiveness. This research also evidences that, during information flows mapping, it is possible to find out nonconformities, which could indicate risks to be avoided in a SDSS project. Within information management, SDSS have become an important ally on the quest to find out the best enterprise strategies. This research contributes to SDSS planning, as an option to analyses the environment where such systems will take place.

Made available in DSpace on 2015-04-16T15:23:16Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 6026265 bytes, checksum: 9a24d461a1002313e2add7a9c02059fa (MD5) Previous issue date: 2011-08-04 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / Back scientific scrutiny to a social stratum, and it inserts that do research and seek his understanding is one pillar of fundamental importance for the social sciences. More importantly, when this layer is made up of people shut out from society, separated and isolated from others, such as the institutionalized elderly as a whole. Old age has two strands that daily distance themselves at opposite poles, where on the one hand there are the elderly with economic potential and embedded in a social environment in which they consume and participate actively in social and family decisions. On the other hand, a number of people in forgotten places called asylums. Often, these people do not have the financial resources, nor health, to have activity in the society that surrounds him. With the latter, the work presented here is presented with the purpose of responding to the flux of information, drawn from the information practices may contribute to the inclusion of the institutionalized elderly in the town of Cuité - PB, society and contribute to their full citizenship . For the purpose it was used as a descriptive research methodology in order to serve as a basis for future studies and actions that may be developed. With the data obtained, it is important to realize that indeed there are no conditions for most of the institutionalized elderly, to participate fully in the information flow of asylum, due to factors such as special needs, culture in which it is inserted, way of life limited by structural conditions in which he lived, lack of economic resources and lack of interest in life itself. However, the study was revealing to allow others to, at this point, following trails for the creation of knowledge that can solve the obvious flaws that we, as members of the information society, we do not come back to us also look at social individuals because its physical isolation (asylum) itself does not mean intellectual and information needs. / Voltar o olhar científico para um estrato social, e nele fazer pesquisas e inserções que visam o seu entendimento é um pilar de fundamental importância para as ciências sociais. Mais importante ainda quando este estrato é constituído de pessoas alijadas do convívio social, separadas e isoladas dos demais, como é o caso dos idosos asilados como um todo. A velhice tem duas vertentes que cotidianamente se distanciam em pólos opostos, onde por um lado há os idosos com potencial econômico e inseridos em um meio social no qual consomem e participam ativamente das decisões familiares e sociais. De outro, um contingente de pessoas esquecidas em locais denominados asilos. Muitas das vezes, essas pessoas, não dispõem de recursos financeiros, e nem de saúde, para ter atividade na sociedade que o circunda. Com estes últimos, o trabalho ora apresentado se apresenta com o intuito de responder se o fluxo informacional, oriundo das práticas informacionais, pode contribuir para a inserção dos idosos asilados, na cidade de Cuité PB, na sociedade e contribuir para a sua plena cidadania. Para o intento utilizou-se como metodologia a pesquisa descritiva, a fim de servir de base para estudos e ações futuras que possam vir a ser desenvolvidas. Com os dados obtidos, é fato relevante perceber que não há condições, para a maioria dos idosos asilados, de participar de forma plena do fluxo informacional do asilo, em virtude de fatores como: necessidades especiais, cultura em que está inserido, modo de vida limitado pelas condições estruturais em que viveu, falta de recursos econômicos e desinteresse pela vida, propriamente dito. Todavia, o estudo foi revelador em permitir que outros possam, a partir deste ponto, seguir trilhas para constituição de conhecimento que possam solucionar as evidentes falhas que nós, enquanto membros da sociedade da informação, deixamos ao não voltar nosso olhar também para estes sujeitos sociais, pois seu isolamento físico (asilo) não significa propriamente intelectual e de necessidades de informação.

Made available in DSpace on 2015-04-16T15:23:18Z (GMT). No. of bitstreams: 1 arquivototal.pdf: 8192104 bytes, checksum: b2f34676bf7982bfc1a5a2a743c3ec89 (MD5) Previous issue date: 2012-03-14 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES / Understanding the information as the central object of study in Information Science (IS) - seeing its essential interdisciplinary approach and its inseparable relationship with social responsibility - this research focused on the best understanding of the problems of the effective dissemination of knowledge, of the information flow among the humans involved in the National Transplant System (NTS). In sum, the research aimed at understanding how to structure the NTS s information flow from the perspective of the Social Network Analysis (SNA). Through technical and field visits, interviews and electronic questionnaires it was possible to relate the channels that the NTS s information flow used to form the social structure of the network. Next, it was observed the central positions of General Coordination of the National Transplant System (GCNTS) and Central National Transplant (CNT) as well as the informal leaderships by states like Santa Catarina, Rio Grande do Norte, São Paulo and Ceará in this analysis approach. It was concluded that the more an actor appeared in the network, participating in its informational dynamics, more representative numerically and graphically he places himself before the others. Considering the whole network, it was assumed that even though it had presented a reasonable structure and distribution, most connections were highlighted as weak, what indicates low level of interaction among network members. These aspects were very relevant, not ensuring, as well, the necessary conditions for allowing a uniform and continuous flow that would represent a satisfactory traffic of information in order to promote the advancement of scientific and technical knowledge of all actors in the network. / Ao compreender a informação como objeto central de estudo da Ciência da Informação (CI) - enxergando sua essencial interdisciplinaridade, além de sua indissociável ligação com a responsabilidade social esta pesquisa voltou-se para um melhor entendimento dos problemas da efetiva disseminação do conhecimento, do fluxo de informações entre seres humanos envolvidos no Sistema Nacional de Transplantes (SNT). Objetivou-se compreender como se estrutura o fluxo informacional do SNT sob a óptica da Análise de Redes Sociais (ARS). Por meio de visitas técnicas e de campo, de entrevistas e aplicação de questionários eletrônicos foi possível relacionar os canais que o fluxo informacional do SNT utilizou para compor a estrutura social da rede. Na sequência, observaram-se os posicionamentos centrais da Coordenação-Geral do Sistema Nacional de Transplantes e da Central Nacional de Transplantes bem como as lideranças informais de estados como de Santa Catarina, Rio Grande do Norte, São Paulo e Ceará sob tal abordagem da análise. Concluiu-se que quanto mais um ator se apresentou conectado à rede, participando de sua dinâmica informacional, mais representativo numérica e graficamente ele se posicionou frente aos demais. Já na rede como um todo, assume-se que apesar dela ter apresentado uma razoável estruturação e distribuição, a maioria das ligações foram destacadas como fracas, indicando baixo nível de interação entre os membros da rede. Tais aspectos foram bastante relevantes em não garantir condições necessárias para que se ocorresse um fluxo uniforme e contínuo que representasse um satisfatório tráfego de informações de modo a favorecer o avanço do conhecimento técnico e científico de todos os atores da rede.

Diploma paper is dealing with complex analysis of the information and material flows in concrete mixtures production focusing on proposals of logistic cost optimalization. The complex analysis is based on the time and direct observation in selected subject. One part of this work is dealing with optimalization of supply of production raw materials especially self supply of gravel aggregate into the each concrete mixing plant. Second part of this work is dealing with selected subject fleet optimalization. Optimalization possibilities were based on the results of the comprehensive analysis of the information and material flows.

Le but de ce travail de thèse, qui fait partie du projet ANR ReFlex (n° NT 05-2_41686 Renforcer la flexibilité lexicale et syntaxique dans l’expression orale et écrite des adolescents), est l’étude des capacités linguistiques d’enfants et d’adolescents appartenant à une CSP défavorisée et scolarisés en ZEP dans la région de Lyon. Partant du constat que l’adolescence était une période clef du développement de l’expression orale et écrite en situation monologique (Berman, 2006), nous étudions les productions de trois groupes d’enfants monolingues français (scolarisés en CM2 (âge moyen : 10;9), 5ème (âge moyen : 12;7) et 3ème (âge moyen : 15;2)). Les textes ont été produits dans divers contextes de production : à l’oral et à l’écrit, en exposition et en narration. Nous étudions alors le passage de l’enfant du statut de « native speaker » à celui de « proficient speaker » (Berman, 2004:9, 2008:2). L’enfant, après avoir acquis des unités et des règles linguistiques, doit apprendre lors de l’encodage d’un message à s’adapter aux différents contextes communicationnels, etc. : il doit devenir flexible. Des analyses off line ont été effectuées, et mon travail de thèse se concentre essentiellement sur une thématique spécifique : les syntagmes nominaux dans une perspective syntaxique, développementale et discursive. Notre analyse des syntagmes nominaux est fortement inspirée par l’hypothèse de la Preferred Argument Structure (Du Bois 1987) et examine la cohésion référentielle de textes produits dans différents contextes (oral/écrit ; narratif/expositif). Notre but est ainsi de démontrer : (1) que les choix syntaxiques sont gouvernés par les contraintes communicationnelles et (2) que ces contraintes communicationnelles varient selon la modalité de production (oral ou écrite). / The main aim of this research, which is apart of a large project (the ANR project : ReFlex project, n° NT 05-2_41686 Renforcer la flexibilité lexicale et syntaxique dans l’expression orale et écrite des adolescents), is the study of linguistic capacities in lower-class children attending an educational priority school in the suburbs of Lyon. Much development in the ability to produce a monologue text occurs during childhood and adolescence (Berman, 2006). For this reason, I have studied the productions of three groups of French monolingual children (mean age: 10;9 (CM2), 12;7 (5ème) and 15;2 (3ème)). Each participant produced two text types (expository/narrative) in two modalities (written/spoken). The primary focus is on how children grow from “native speaker” to “proficient speaker” (Berman, 2004:9, 2008:2). After having acquired linguistic forms and rules children must learn to adapt their verbal message to the different communicational contexts, etc.: this requires that children become expressively flexible. Off line analyses were conducted, and my PhD thesis tackles a specific theme: noun phrases in a syntactic, developmental and discursive perspective. Our analysis of noun phrases is inspired by the hypothesis of Preferred Argument Structure (Du Bois 1987) and examines referential cohesion in texts produced in different contexts (spoken/written, expository text/narrative text). Our aim is to demonstrate: (1) that language production is governed by communicative constraints; and (2) that those communicative constraints differ for written and spoken production.

Submitted by Fabio Sobreira Campos da Costa (fabio.sobreira@ufpe.br) on 2017-04-27T15:28:06Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Analise-do-Servico-de-Informacao-ao-Cidadao-das-IFEs-NE.pdf: 2394599 bytes, checksum: ea406a81a2f85a1f7431c52401037aa1 (MD5) / Made available in DSpace on 2017-04-27T15:28:06Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Analise-do-Servico-de-Informacao-ao-Cidadao-das-IFEs-NE.pdf: 2394599 bytes, checksum: ea406a81a2f85a1f7431c52401037aa1 (MD5) Previous issue date: 2016-02-29 / Desde a implementação da Lei de Acesso à Informação (LAI), em 2012, percebese uma busca intensiva da sociedade por informações de domínio público e a maior participação nas decisões governamentais, em relação à aplicação dos recursos públicos. O cumprimento da LAI resulta em práticas de transparência nas instituições, por meio da cultura do acesso e da oferta de serviços de informação à sociedade. Nesse sentido, a Ciência da Informação pode contribuir tanto nos processos de organização, disponibilização e acesso à informação, assim como na identificação das necessidades de informação dos usuários e na criação de uma base dos dados mais relevantes. Diante desse contexto, essa pesquisa teve como objetivo analisar os Serviços de Informação ao Cidadão (SICs), com foco no seu funcionamento, estrutura organizacional e no fluxo de informações utilizado. Permitindo assim, identificar pontos positivos e dificuldades que esses órgãos possam vivenciar no seu papel de facilitadores do acesso à informação. A pesquisa quanto aos objetivos é descritiva e tem natureza qualitativa e quantitativa. Quanto às fontes de dados é bibliográfica. Quanto aos procedimentos de coleta de dados foram utilizadas as técnicas de pesquisa documental e de levantamento, por meio de aplicação de questionário e realização de entrevista semiestruturada com os respondentes do sistema e-SIC das instituições da amostra. Como amostra selecionou-se as Instituições Federais de Ensino Superior do Nordeste com mais pedidos de informação no SIC, o que resultou em nove instituições. Os resultados obtidos forneceram embasamento para considerações importantes, das quais se destaca que os anos de cultura do segredo vivenciados pelas instituições e muitos dos seus servidores, ainda são um empecilho para que o fluxo informacional (desde o pedido de informação pelo cidadão até sua respectiva resposta) ocorra sem atrasos ou dificuldades, de forma eficiente. Outro destaque é para a inexperiência dos agentes públicos responsáveis pelo atendimento no SIC, assim como a ausência de ferramentas e técnicas para facilitar a localização de pedidos já respondidos e a falta de organização das informações coletadas na instituição, o que poderia facilitar a resposta a pedidos de informações com assuntos recorrentes no SIC. Conclui-se que é necessária a adoção de medidas no sentido de conscientizar e deixar mais claro o teor da LAI a todos os envolvidos no fluxo informacional para resposta aos pedidos de informação ao SIC, o que já ocorre em algumas instituições. De fato, a informação é o caminho para a cidadania, uma vez que é por meio dela que os cidadãos podem conhecer e exercer seus direitos na sociedade em que vivem. / Since the implementation of the Access to Information Act (LAI), in 2012, one sees an intensive search of society for public information and greater participation in government decisions regarding the use of public resources. Compliance with the LAI results in transparency practices in institutions, through the culture of access and the provision of information society services. In this sense, information science can contribute both in organizational processes, availability and access to information, as well as the identification of users' information needs and the creation of a base of the most relevant data. This research aimed to analyze the Citizens Information Services (SICs), focusing on its operation, organizational structure and flow of information. Thus allowing to identify strengths and difficulties that these organs can experience in their role as facilitators of access to information. Related to the aims, this research is descriptive, qualitative and quantitative. The data source is literature. As data collection procedures were used the techniques of documentary research and survey through questionnaire and carrying out semi-structured interviews with respondents of SIC in the institutional sample. As sample were selected the Federal Institutions of Higher Education of the Northeast with more requests for information on the SIC, which resulted in nine universities representing each state. The results provided basis for important considerations, which can be noted that the years of secrecy culture experienced by institutions and many of its servers, is still a stumbling block for the information flow (from the request for information by the citizen to their response) occurs without delays or difficulties efficiently. Another highlight is also the lack of experience of public officials responsible for serving the SIC, as well as the lack of tools and techniques to facilitate the location of applications already answered and the disorganization of the information collected in the institution, which could avoid the registration of further requests for information with recurring issues in the SIC. It is concluded that it is necessary to adopt measures to raise awareness and make clearer the content of LAI to all involved in the information flow to the requests for information to the SIC, which already occurs in some institutions. In fact, information is the path to citizenship, since it is through it that citizens can know and exercise their rights in the society in which they live.

Esta tese de doutorado parte da premissa que existem barreiras, muitas vezes intransponíveis, entre a produção de conhecimento em arqueologia e a sociedade. Neste cenário, os museus figuram como as principais janelas que se abrem entre o conhecimento construído em Arqueologia e o público não especialista. Entendendo os museus como sistemas de informação, buscamos nesta tese identificar os ruídos que interferem nos fluxos de informações gerados pela cadeia operatória de musealização da arqueologia - que compreende as estratégias de aquisição, salvaguarda e comunicação. Como forma de identificar os elementos que interferem na fluidez da informação, confeccionamos uma ferramenta nomeada de diagnóstico museológico que foi aplicado nos dois objetos de pesquisa: o Museu de Arqueologia de Xingó e o Museu Arqueológico de Sambaqui de Joinville. Com base nos resultados coletados nos diagnósticos, elaboramos uma análise de dados na qual foram apontados os fatores que representam obstáculos e ameaças à fluidez da informação; potencialidades e dinamizadores dos fluxos; aproximações institucionais e estruturas de longa duração que recaem sobre os museus estudados. / This thesis assumes that there are barriers, often insurmountable, between the production of knowledge in archeology and society. In this scenario, the museums are considered as the main windows that are opened between the knowledge built in Archaeology and non-specialist audience. Understanding museums as information systems, this thesis sought to identify the gaps that interfere with the flow of information generated by the chain of archeological musealization - which comprises the strategies of acquisition, conservation and communication. As a way to identify the elements that influence the flow of information, we conceive a tool entitled museum diagnostic that was applied in both research subjects: the Museu de Arqueologia de Xingó e Museu de Sambaqui de Joinville. Based on the results collected in diagnostics, we developed a data analysis in which we describe the factors identified that represent obstacles and threats to the flow of information; the potential movers and flows of information; institutional approaches and structures and long-term incumbent on museums studied.

Les flux d’information sont des transferts d’information entre les objets d’un environnement donné. À l’échelle du système, pour toute information appartenant à une application donnée, les flux impliquant cette information décrivent comment l’application propage ses données dans le système et l’ensemble de ces flux peut ainsi être considéré comme un profil comportemental de l’application. À cause du nombre croissant d’applications malveillantes, il est devenu nécessaire d’explorer des nouvelles techniques permettant de faciliter voir automatiser l’analyse et la détection de malware. Dans cette thèse, nous proposons ainsi une méthode pour caractériser et détecter les malware Android en nous basant sur les flux d’information qu’ils causent dans le système. Cette méthode repose sur deux autres contributions de la thèse : AndroBlare, la version Android d’un moniteur de flux d’information du nom de Blare, et les graphes de flux système, une structure de donnée représentant de manière compacte et humainement compréhensible les flux d’information observés. Nous avons évalué avec succès notre approche en construisant le profil de 4 malware différents et avons montré que ces profils permettaient de détecter l’exécution d’applications infectées par les malware dont on a un profil. / : Information flows are information exchanges between objects in a given environment. At system level, information flows involving data belonging to a given application describe how this application disseminates its data in the system and can be considered as behaviour based profile of the application. Because of the increasing number of Android malware, there is an urgent need to explore new approaches to analyse and detect Android malware. In this thesis, we thus propose an approach to characterize and detect Android malware based on information flows they cause in the system. This approach leverages two other contributions of the thesis which are AndroBlare, the Android version of an information flow monitor named Blare, and the system flow graph, a data structure to represent in a compact and human readable way the information flows observed by AndroBlare. We successfully evaluated our approach by building the profile of 4 different malware and showed that these profiles permitted to detect the execution of applications infected by malware for which we have computed a profile.