Natural resources and rural livelihoods in Africa are under pressure due to climate change and ineffective management. It particularly affects countries where most of the population depends on natural resources for their livelihood, like Ethiopia. Even though, there is scientific and local knowledge on environmental management in the form of national strategies, stakeholders, and actions at multiple governance levels, it is lacking a proper interlinkage and public communication. This research aims to contribute to narrow gaps between knowledge systems and enhance adaptive capacity by understanding barriers and drivers for knowledge generation and management in climate change adaptation. The study interlinks political ecology and social theoretical concepts for climate change adaptation and knowledge management in a multi-level governance framework representing one country. Ethiopia is focused on in this study because it is and will be greatly affected by climate change and has elaborated a national strategy to become a climate resilient middle-income country by 2025. The governance levels are analyzed with (1) determining the institutional framework, stakeholders, and networks at national level, (2) analyzing the structure, role and capacity of the extension system, (3) investigating local capacities and thresholds for access and participation in knowledge and governance processes for natural resource management. A focus is put on (4) area closures, as an example for an applied and common intervention of natural resource management in Ethiopia, which can serve as contribution to cope with climate change consequences. In a final step (5) interlinkages and compatibility of the governance levels in Ethiopia are evaluated to draw conclusions for a generalization of obstacles and potentials. A two-level case study design was applied incorporating the national and local level of Ethiopia:Acknowledgements I Abstract III Zusammenfassung V Table of Content VII List of Abbreviations X List of Figures XII List of Tables XIV List of Appendices XV 1. Introduction 1 1.1. Social and Governance Limits to Climate Change Adaptation 1 1.2. Justification of the Study and Focus on Knowledge Management 3 1.3. Objectives and Structure of the Study 6 2. Theoretical Framework 9 2.1. State of Scientific Knowledge: Multi-Level Governance and Knowledge in Environmental Management in Africa 9 2.1.1. Multi-Level Governance for Environmental Management 9 2.1.2. Knowledge Systems and Social Dimensions in Climate Change Adaptation and Governance in Africa 11 2.1.3. Environmental Situation and Governance in Ethiopia 14 2.1.4. Area Closures for Climate Change Adaptation and Governance in Ethiopia 16 2.2. Conceptual Framework: Knowledge Management for Climate Change Adaptation in a Multi-Level Governance System 17 3. Methodology 19 3.1. Research Design and Concept 19 3.1.1. Multi-Level Case Study Design for Multi-Level Social Research 19 3.1.2. Description of the Case Study Country and Local Sites in Ethiopia 21 3.1.3. Research Matrix and Phases 23 3.2. Data Collection Methods & Materials 27 3.2.1. Secondary Literature and Data Review 27 3.2.2. Interviewing Techniques with Organizations 27 3.2.3. Community Survey 30 3.2.4. Observation 34 3.3. Data Analysis 35 3.3.1. Data base and processing 35 3.3.2. Qualitative Content Analysis 35 3.3.3. Statistical Evaluation 38 3.3.4. Social Network Analysis 38 3.4. Research Ethics and Limitations of the Study 40 4. Climate Change Adaptation at Country Level in Ethiopia 43 4.1. Legal Framework and Perceptions of Activities tackling Climate Change and Adaptation in Ethiopia 43 4.2. Organizational, Collaboration and Communication Structures 48 4.3. The Extension System: Function and Performance 57 4.4. Institutionalization and Perception of Area Closure Management 63 5. Knowledge Systems and Natural Resource Management at Local Level in Rural Ethiopia 67 5.1. Case Study I: Adami Tulu Jido Kombolcha Woreda, Oromia Region 67 5.1.1. Facts and Description of the Study Area 67 5.1.2. Climatic and Environment Change: Perceptions and Activities 72 5.1.3. Information, Communication, and Social Networks 76 5.1.4. Development and Extension Structure and Processes 84 5.1.5. Organizational Capacities and Collaboration Structures 90 5.1.6. Management and Performance of Area Closures 95 5.2. Case Study II: Wogera Woreda, Amhara Region 104 5.2.1. Facts and Description of the Study Area 104 5.2.2. Climatic and Environment Change: Perceptions and Activities 107 5.2.3. Information Access, Communication, and Social Networks 111 5.2.4. Development and Extension Structure and Processes 115 5.2.5. Organizational Capacities and Collaboration Structures 121 5.2.6. Management and Performance of Area Closures 126 5.3. Synopsis of the Local Case Studies 132 5.3.1. Comparative Analysis of the Woredas ATJK and Wogera 132 5.3.2. Conclusions on Structures and Conditions for Knowledge Generation and Management at Local Level 138 6. Synthesis: Knowledge Management for Climate Change Adaptation 143 6.1. (In)Compatibility of National Visions and Local Reality in Ethiopia 143 6.2. Future Pathways: Three Scenarios for Knowledge Management and Climate Change Adaptation in Ethiopia 146 6.2.1. Scenario I: Business-As-Usual 146 6.2.2. Scenario II: Collective Action at Community Level 148 6.2.3. Scenario III: Multi-Level Stakeholder Dialogue 150 6.2.4. Recommendations for Actions in Ethiopia 152 6.3. Framework of Multi-Level Governance for Strengthening Knowledge Management on Climate Change Adaptation 155 7. Conclusion 159 7.1. Lessons Learned 159 7.2. Methodological critique and suggestions for further research 160 References 161 Appendices 177

This study provides a critical interrogation of the perceptions held by the undergraduate Philosophy of Education students at an open and distance learning institution, towards African philosophy. The study is premised on famed Kenyan philosopher, Odera Henry Oruka‟s classification of African philosophy into four trends: ethno-philosophy, philosophic sagacity, nationalist-ideological philosophy and professional philosophy. These trends confirm that African philosophy is more than traditions, culture or ubuntu, and more complex than the students make it to be. The study makes a link between the students‟ flawed perceptions of African philosophy with their lack of critical thinking skills. The study has attempted to answer questions such as why students have flawed perceptions of African philosophy; how critical thinking assists in changing their perceptions of African philosophy, and what role can the education system play in equipping students with critical thinking skills. The study‟s findings show that undergraduate Philosophy of Education students conflate African philosophy with African people‟s traditions and cultures, and with ubuntu. Students perceive that African philosophy lacks reason and rationality - key elements of critical thinking. The study‟s findings show that students lack critical thinking skills. The study notes that the way students are taught makes a large contribution to their perceptions and lack of critical thinking skills. The study makes the following recommendations. Firstly, to deal with the problem of students‟ conflations, the study recommends the introduction of the principles of African philosophy, namely, ubuntu, communalism and indigenous knowledge systems (IKS) in the school curriculum, and to emphasise these principles in the curricula of higher education institutions. Secondly, the study recommends the introduction of philosophy for children (P4C) in schools. It is envisaged that P4C will assist learners to acquire critical thinking skills at an early stage of learning. Thirdly, the study recommends the teaching of critical thinking skills at universities. Finally, the study recommends that in- service training be made an integral part of teachers‟ and lecturers‟ professional training, to bring them up-to-date with new ideas and methods of teaching. / Educational Studies / D. Ed. (Philosophy of Education)

Thesis (MPhil (Sustainable Development, Planning and Management))--University of Stellenbosch, 2007. / The study investigates the role of indigenous governance systems in sustainable development at Moshupa, Botswana. Due to time limitations, this research study has only been able to provide a basic understanding of the role of indigenous governance systems in sustainable development. The study is primarily qualitative and generated data through the use of instruments including document analysis, focus group discussions and semi-structured interviews. A sample of thirty-five (35) respondents from both sexes, aged twenty-eight (28) years to eighty-two (82) years constitutes the study. The sample was drawn using a “snowball sampling” procedure. Specifically, some key informants were chiefs from neighbouring villages who have an impact on the history of Bakgatla-ba-ga-Mmanaana and/or Moshupa village administration (Kanye, Thamaga, Mankgodi, Molepolole, Ramotswa, and Tlokweng), village elders and traditional doctor; whilst other respondents were selected from tribal wards, village development committee, water affairs department, crèche, Botswana Police service, sub-landboard, elected political councillors, and the youth movement because of their positions and understanding of the socio-economic and ecological processes in the community. Findings of the study indicate that like in many African countries, indigenous governance in Botswana covers a broad spectrum of issues including the participation of community in the local economy, environmental issues and social relations. The study further reveals that the quality of indigenous governance, despite its short comings, has provided communities with a solid foundation to cope with unprecedented development changes; enabled communities to ...

Ce mémoire s’intéresse à la relation entre des archéologues et des Atikamekw de la communauté de Wemotaci, située en Haute-Mauricie. Cette relation est abordée sous l’angle de la transmission des savoirs. En effet, archéologues et Amérindiens possèdent des systèmes de connaissances distincts et c’est de la dynamique de rencontre entre ces deux corpus de savoirs dont il est ici question. Contrairement à ce que décrit généralement la littérature, les différences de conceptions à divers niveaux comme le rapport au passé, au territoire ou à l’objet n’empêchent pas une reconnaissance mutuelle des savoirs entre les archéologues et les Atikamekw. Chacun des groupes acquiert et intègre même les connaissances de l’autre selon ses préoccupations et ses besoins. Cette transmission des connaissances ne se limite pas à l’échange entre les archéologues et les Atikamekw, elle a également eu lieu entre les différentes générations amérindiennes. À travers une histoire où se conjuguent colonisation, éducation et sédentarisation, les savoirs des Atikamekw se trouvent au cœur du changement. C’est ainsi que la pratique archéologique peut devenir un moyen pour mettre en valeur des connaissances autochtones en permettant une rencontre intergénérationnelle sur un terrain de fouilles archéologiques. Enfin, dans un contexte où les nations autochtones désirent participer à tout ce qui concerne la protection de leur patrimoine culturel, l’archéologie peut également devenir un outil de réappropriation culturelle. / This thesis concerns the relation between archaeologists and the Atikamekw from the Wemotaci community, located in the Haute Mauricie region. This relation will be studied from the perspective of knowledge transmission. Archaeologists and Native Americans each possess a distinct knowledge and it is the dynamic nature of the encounter between these two knowledge systems that will be discussed here. Different viewpoints on many themes, such as the way the past, territory or the objet are perceived do not, however, impede a mutual recognition between the archaeologists and the Atikamekw. Indeed, each group gains and incorporates the knowledge of the other according to their preoccupations and needs. This transmission of knowledge is not limited to that between archaeologist and Atikamekw; it also occurs between the different Atikamekw generations. Within the history of colonization, education and settlement in sedentary communities, Atikamekw knowledge is changing. Thus, archaeology can become a way to promote Indigenous knowledge by favouring an intergenerational encounter on an archaeological field project. Finally, within a context where First Nations want to become more involved in their cultural heritage, archaeology can also be a means of cultural reappropration.

Submitted by Fabricia Fialho Reginato (fabriciar) on 2015-08-28T00:39:49Z No. of bitstreams: 1 monalisaXavier.pdf: 2470996 bytes, checksum: 2d8fc39181b86c16f613751d2d910b5d (MD5) / Made available in DSpace on 2015-08-28T00:39:49Z (GMT). No. of bitstreams: 1 monalisaXavier.pdf: 2470996 bytes, checksum: 2d8fc39181b86c16f613751d2d910b5d (MD5) Previous issue date: 2014-03-13 / CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / A midiatização em acelerado processo na sociedade contemporânea altera de modo complexo o funcionamento das enunciações e os modos de interagir, que passam a acontecer vastamente no espaço de dispositivos midiatizados. Tais dispositivos figuram como lugar de agenciamento de diversos saberes e práticas sociais, a exemplo dos saberes e práticas “psi” que, deslocados para sua ambiência, produzem significativas incidências que repercutem na episteme que produz a ideia de consulta. Este estudo se propõe a compreender a singularidade das experimentações tentadas em torno dos saberes “psi” em dispositivos interacionais midiatizados que findam por deslocar os referentes da consulta, de modo a transformá-la. Tais transformações são observadas em três dispositivos interacionais “psi” com ampla circulação social, a saber: a coluna “Vida Íntima”, de autoria de Alberto Goldin; o site Ajudaemocional.com, de Olga Tessari; e as enunciações produzidas por Ildo Rosa da Fonseca e Anahy D’amico no Programa “Casos de Família”. Os observáveis foram cartografados e tensionados em suas lógicas particulares, de modo a alcançarmos as regularidades e as singularidades emergentes em cada um. A análise desenvolvida como um estudo de casos múltiplos nos conduziu a perceber significativos aspectos dos processos sociais condensados nos dispositivos, bem como permitiu inferências acerca de modos como esses dispositivos podem fazer avançar os campos de saberes envolvidos em sua produção. / THE TRANSFORMED APPOINTMENT: Experiments of interactive “psy” devices in mediatized society Mediatization in an accelerated process in contemporary society changes the functioning of enunciations and ways to interact in a complex way, which will happen widely in the space of mediatized devices. Such devices work as a place of agency to several knowledge systems and social practices, as well as “psy” knowledge systems and practices that, when displaced to their ambience, will produce meaningful incidences that pass on the episteme that produces the idea of appointment. The present study aims to understand the singularity of experiments tried around “psy” knowledge systems in interactive mediatized devices that end up displacing the referents of an appointment and transforming it. Such transformations are observed in three interactive “psy” devices with broad social circulation: the newspaper column “Vida Íntima”, signed by Alberto Goldin; the website Ajudaemocional.com, owned by Olga Tessari; and the enunciations produced by Ildo Rosa da Fonseca and Anahy D’amico at the TV Show “Casos de Família”. The observable were mapped and tensioned in their private logics so that we could reach the regularities and singularities emerging in each one. The analysis developed as a multiple-case study has taken us to realize meaningful aspects of social processes condensed in the devices, as well as to allow inferences about the ways in which such devices can advance the field of knowledge systems involved in their production.

Doctor of Philosophy / This thesis analyses the concept of indigenous peoples’ right to self–determination within the international human rights system and explores viable avenues for the fulfilment of indigenous claims to self–determination through the design, implementation and evaluation of development policies. The thesis argues that development policy plays a crucial role in determining the level of enjoyment of self–determination for indigenous peoples. Development policy can offer an avenue to bypass nation states’ political unwillingness to recognize and promote indigenous peoples’ right to self–determination, when adequate principles and criteria are embedded in the whole policy process. The theoretical foundations of the thesis are drawn from two different areas of scholarship: indigenous human rights discourse and development economics. The indigenous human rights discourse provides the articulation of the debate concerning the concept of indigenous self–determination, whereas development economics is the field within which Amartya Sen’s capability approach is adopted as a theoretical framework of thought to explore the interface between indigenous rights and development policy. Foundational concepts of the capability approach will be adopted to construct a normative system and a practical methodological approach to interpret and implement indigenous peoples’ right to self–determination. In brief, the thesis brings together two bodies of knowledge and amalgamates foundational theoretical underpinnings of both to construct a normative and practical framework. At the normative level, the thesis offers a conceptual apparatus that allows us to identify an indigenous capability rights–based normative framework that encapsulates the essence of the principle of indigenous self–determination. At the practical level, the normative framework enables a methodological approach to indigenous development policies that serves as a vehicle for the fulfilment of indigenous aspirations for self–determination. This thesis analyses Australia’s health policy for Aboriginal and Torres Strait Islander peoples as an example to explore the application of the proposed normative and practical framework. The assessment of Australia’s health policy for Indigenous Australians against the proposed normative framework and methodological approach to development policy, allows us to identify a significant vacuum: the omission of Aboriginal traditional medicine in national health policy frameworks and, as a result, the devaluing and relative demise of Aboriginal traditional healing practices and traditional healers.

Ce mémoire s’intéresse à la relation entre des archéologues et des Atikamekw de la communauté de Wemotaci, située en Haute-Mauricie. Cette relation est abordée sous l’angle de la transmission des savoirs. En effet, archéologues et Amérindiens possèdent des systèmes de connaissances distincts et c’est de la dynamique de rencontre entre ces deux corpus de savoirs dont il est ici question. Contrairement à ce que décrit généralement la littérature, les différences de conceptions à divers niveaux comme le rapport au passé, au territoire ou à l’objet n’empêchent pas une reconnaissance mutuelle des savoirs entre les archéologues et les Atikamekw. Chacun des groupes acquiert et intègre même les connaissances de l’autre selon ses préoccupations et ses besoins. Cette transmission des connaissances ne se limite pas à l’échange entre les archéologues et les Atikamekw, elle a également eu lieu entre les différentes générations amérindiennes. À travers une histoire où se conjuguent colonisation, éducation et sédentarisation, les savoirs des Atikamekw se trouvent au cœur du changement. C’est ainsi que la pratique archéologique peut devenir un moyen pour mettre en valeur des connaissances autochtones en permettant une rencontre intergénérationnelle sur un terrain de fouilles archéologiques. Enfin, dans un contexte où les nations autochtones désirent participer à tout ce qui concerne la protection de leur patrimoine culturel, l’archéologie peut également devenir un outil de réappropriation culturelle. / This thesis concerns the relation between archaeologists and the Atikamekw from the Wemotaci community, located in the Haute Mauricie region. This relation will be studied from the perspective of knowledge transmission. Archaeologists and Native Americans each possess a distinct knowledge and it is the dynamic nature of the encounter between these two knowledge systems that will be discussed here. Different viewpoints on many themes, such as the way the past, territory or the objet are perceived do not, however, impede a mutual recognition between the archaeologists and the Atikamekw. Indeed, each group gains and incorporates the knowledge of the other according to their preoccupations and needs. This transmission of knowledge is not limited to that between archaeologist and Atikamekw; it also occurs between the different Atikamekw generations. Within the history of colonization, education and settlement in sedentary communities, Atikamekw knowledge is changing. Thus, archaeology can become a way to promote Indigenous knowledge by favouring an intergenerational encounter on an archaeological field project. Finally, within a context where First Nations want to become more involved in their cultural heritage, archaeology can also be a means of cultural reappropration.

Doctor of Philosophy / This thesis analyses the concept of indigenous peoples’ right to self–determination within the international human rights system and explores viable avenues for the fulfilment of indigenous claims to self–determination through the design, implementation and evaluation of development policies. The thesis argues that development policy plays a crucial role in determining the level of enjoyment of self–determination for indigenous peoples. Development policy can offer an avenue to bypass nation states’ political unwillingness to recognize and promote indigenous peoples’ right to self–determination, when adequate principles and criteria are embedded in the whole policy process. The theoretical foundations of the thesis are drawn from two different areas of scholarship: indigenous human rights discourse and development economics. The indigenous human rights discourse provides the articulation of the debate concerning the concept of indigenous self–determination, whereas development economics is the field within which Amartya Sen’s capability approach is adopted as a theoretical framework of thought to explore the interface between indigenous rights and development policy. Foundational concepts of the capability approach will be adopted to construct a normative system and a practical methodological approach to interpret and implement indigenous peoples’ right to self–determination. In brief, the thesis brings together two bodies of knowledge and amalgamates foundational theoretical underpinnings of both to construct a normative and practical framework. At the normative level, the thesis offers a conceptual apparatus that allows us to identify an indigenous capability rights–based normative framework that encapsulates the essence of the principle of indigenous self–determination. At the practical level, the normative framework enables a methodological approach to indigenous development policies that serves as a vehicle for the fulfilment of indigenous aspirations for self–determination. This thesis analyses Australia’s health policy for Aboriginal and Torres Strait Islander peoples as an example to explore the application of the proposed normative and practical framework. The assessment of Australia’s health policy for Indigenous Australians against the proposed normative framework and methodological approach to development policy, allows us to identify a significant vacuum: the omission of Aboriginal traditional medicine in national health policy frameworks and, as a result, the devaluing and relative demise of Aboriginal traditional healing practices and traditional healers.

Esse trabalho define K-Aspects (Knowledge Aspects), uma abordagem para a implementação de Sistemas de Conhecimento (SC) em linguagens orientadas a objetos usando o paradigma orientado a aspectos (OA) e anotações de metadados. Essa abordagem define uma forte correspondência entre o Modelo de Conhecimento (MC) e sua implementação no paradigma da orientação a objetos (OO). K-Aspects fornece um conjunto de anotações documentacionais para facilitar a leitura da associação entre o modelo de implementação e o modelo conceitual do conhecimento; um conjunto de anotações para facilitar a separação de interesses na implementação do SC usando OA; um conjunto de bibliotecas para realizar a interpretação das anotações e sua execução em aspectos; e uma ferramenta para geração de documentação do MC a partir das anotações no código. A abordagem busca atender tanto os engenheiros de conhecimento quanto os engenheiros de desenvolvimento em projetos de SC. Os engenheiros de conhecimento tem ao seu alcance um modo adequado para elaborar a especificação do MC que resulta em uma especificação em uma linguagem orientada a objetos, permitindo aos engenheiros de desenvolvimento implementarem o sistema preservando a estrutura do modelo conceitual e mantendo clara distinção entre os requisitos associados ao MC dos demais requisitos. K-Annotations adicionam recursos de OA ao modelo conceitual do conhecimento OO, oferecendo facilidades de tratamento separado de diversas funcionalidades transversais de um SC, através do particionamento do sistema em aspectos que implementam funcionalidades específicas, ativadas através das anotações inseridas no componente do modelo conceitual. Anotações distinguem, clara e visualmente, no código, os elementos do MC em relação ao restante do código do programa, facilitando a leitura do código pelos engenheiros de conhecimento. A função principal das anotações é prover as informações necessárias para a interpretação dos elementos de conhecimento durante a execução do programa. Anotações identificam as funcionalidades transversais relativas aos construtos do modelo e são gerenciadas pela biblioteca de aspectos. A abordagem foi validada re-escrevendo com o uso de K-Annotations um sistema de conhecimento no domínio da análise da qualidade de reservatórios de petróleo. O modelo desse sistema representa uma ontologia de domínio sobre o qual métodos de solução de problemas para interpretação e classificação de rochas são aplicados. A análise dos resultados identificou um conjunto de vantagens no uso de K-Aspects, como distinção clara entre a implementação do MC e a implementação dos demais requisitos, suporte nativo aos construtos providos no modelo de conhecimento e alto grau de rastreabilidade entre o modelo e sua implementação. Além disso, provê redução de tarefas repetitivas de implementação e redução da dispersão de código a partir da geração automática de código. As bibliotecas de aspectos garantem o encapsulamento de inferências e tarefas. As bibliotecas tratam os construtos do modelo para garantir a reutilização em diferentes projetos de SCs. / This work defines K-Aspects (Knowledge Aspects), an approach for implementing Knowledge Systems (KS) with object-oriented languages using the aspect-oriented paradigm (AO) and metadata annotations. This approach defines a strong link between the knowledge model (KM) and its implementation in the object-oriented paradigm (OO). K-Aspects provides a set of documentational annotations to make the association between the implementation model and the knowledge conceptual model easier to read; a set of annotations to enable the separation of concerns, using aspect orientation, of the implementation of the different requirements of the knowledge system; a set of libraries to perform the interpretation and execution as aspects of annotations; and a tool for documentation generation of the KM extracted from the annotations on the code. The approach aims to support both knowledge engineers and development engineers in KS projects, by providing to the knowledge engineers a well-defined way to elaborate the KS specification, which results in a specification presented in an object oriented language, making it easily understandable and extensible by development engineers that can thus implement the knowledge system preserving its conceptual knowledge structure and keeping a clear distinction of the requirements associated to the KM from the other requirements. K-Annotations add aspect oriented resources to the OO conceptual knowledge model, providing features to manage separately the multiple crosscutting concerns of a KS, partitioning the system in aspects that implement specific features, activated by annotations inserted in the knowledge conceptual model. Annotations distinguish, clearly and visually, within the code, KM elements from the rest of the code, making easier the code reading by the knowledge engineers. The most important function of the annotations is to provide information necessary for interpreting knowledge elements during runtime. Annotations identify several crosscutting concerns related to the model constructs. Annotations are managed and executed by the aspect libraries. This approach was validated by re-coding, using K-Annotations, a complex commercial KS on the domain of oil reservoir quality analysis. The model of this system represents a domain ontology on which problem-resolving methods for rock interpretation and classification are performed. The analysis of the results identified several advantages of using K-Aspects as: a clear distinction of the KM implementation among other requirements; native support for knowledge model constructs; and high traceability between the knowledge conceptual model and its implementation. Moreover, the use of K-Aspects reduces repetitive implementation tasks and code dispersion because of the automatic code generation. The provided aspect libraries enable the encapsulation of inferences and the execution of several tasks. The libraries manage the constructs of the model thus providing reusability among multiple KS projects.

Esse trabalho define K-Aspects (Knowledge Aspects), uma abordagem para a implementação de Sistemas de Conhecimento (SC) em linguagens orientadas a objetos usando o paradigma orientado a aspectos (OA) e anotações de metadados. Essa abordagem define uma forte correspondência entre o Modelo de Conhecimento (MC) e sua implementação no paradigma da orientação a objetos (OO). K-Aspects fornece um conjunto de anotações documentacionais para facilitar a leitura da associação entre o modelo de implementação e o modelo conceitual do conhecimento; um conjunto de anotações para facilitar a separação de interesses na implementação do SC usando OA; um conjunto de bibliotecas para realizar a interpretação das anotações e sua execução em aspectos; e uma ferramenta para geração de documentação do MC a partir das anotações no código. A abordagem busca atender tanto os engenheiros de conhecimento quanto os engenheiros de desenvolvimento em projetos de SC. Os engenheiros de conhecimento tem ao seu alcance um modo adequado para elaborar a especificação do MC que resulta em uma especificação em uma linguagem orientada a objetos, permitindo aos engenheiros de desenvolvimento implementarem o sistema preservando a estrutura do modelo conceitual e mantendo clara distinção entre os requisitos associados ao MC dos demais requisitos. K-Annotations adicionam recursos de OA ao modelo conceitual do conhecimento OO, oferecendo facilidades de tratamento separado de diversas funcionalidades transversais de um SC, através do particionamento do sistema em aspectos que implementam funcionalidades específicas, ativadas através das anotações inseridas no componente do modelo conceitual. Anotações distinguem, clara e visualmente, no código, os elementos do MC em relação ao restante do código do programa, facilitando a leitura do código pelos engenheiros de conhecimento. A função principal das anotações é prover as informações necessárias para a interpretação dos elementos de conhecimento durante a execução do programa. Anotações identificam as funcionalidades transversais relativas aos construtos do modelo e são gerenciadas pela biblioteca de aspectos. A abordagem foi validada re-escrevendo com o uso de K-Annotations um sistema de conhecimento no domínio da análise da qualidade de reservatórios de petróleo. O modelo desse sistema representa uma ontologia de domínio sobre o qual métodos de solução de problemas para interpretação e classificação de rochas são aplicados. A análise dos resultados identificou um conjunto de vantagens no uso de K-Aspects, como distinção clara entre a implementação do MC e a implementação dos demais requisitos, suporte nativo aos construtos providos no modelo de conhecimento e alto grau de rastreabilidade entre o modelo e sua implementação. Além disso, provê redução de tarefas repetitivas de implementação e redução da dispersão de código a partir da geração automática de código. As bibliotecas de aspectos garantem o encapsulamento de inferências e tarefas. As bibliotecas tratam os construtos do modelo para garantir a reutilização em diferentes projetos de SCs. / This work defines K-Aspects (Knowledge Aspects), an approach for implementing Knowledge Systems (KS) with object-oriented languages using the aspect-oriented paradigm (AO) and metadata annotations. This approach defines a strong link between the knowledge model (KM) and its implementation in the object-oriented paradigm (OO). K-Aspects provides a set of documentational annotations to make the association between the implementation model and the knowledge conceptual model easier to read; a set of annotations to enable the separation of concerns, using aspect orientation, of the implementation of the different requirements of the knowledge system; a set of libraries to perform the interpretation and execution as aspects of annotations; and a tool for documentation generation of the KM extracted from the annotations on the code. The approach aims to support both knowledge engineers and development engineers in KS projects, by providing to the knowledge engineers a well-defined way to elaborate the KS specification, which results in a specification presented in an object oriented language, making it easily understandable and extensible by development engineers that can thus implement the knowledge system preserving its conceptual knowledge structure and keeping a clear distinction of the requirements associated to the KM from the other requirements. K-Annotations add aspect oriented resources to the OO conceptual knowledge model, providing features to manage separately the multiple crosscutting concerns of a KS, partitioning the system in aspects that implement specific features, activated by annotations inserted in the knowledge conceptual model. Annotations distinguish, clearly and visually, within the code, KM elements from the rest of the code, making easier the code reading by the knowledge engineers. The most important function of the annotations is to provide information necessary for interpreting knowledge elements during runtime. Annotations identify several crosscutting concerns related to the model constructs. Annotations are managed and executed by the aspect libraries. This approach was validated by re-coding, using K-Annotations, a complex commercial KS on the domain of oil reservoir quality analysis. The model of this system represents a domain ontology on which problem-resolving methods for rock interpretation and classification are performed. The analysis of the results identified several advantages of using K-Aspects as: a clear distinction of the KM implementation among other requirements; native support for knowledge model constructs; and high traceability between the knowledge conceptual model and its implementation. Moreover, the use of K-Aspects reduces repetitive implementation tasks and code dispersion because of the automatic code generation. The provided aspect libraries enable the encapsulation of inferences and the execution of several tasks. The libraries manage the constructs of the model thus providing reusability among multiple KS projects.