The thesis is focused on the integration of the National Identity Authority into a trustworthy archive system belonging to a Brno company. The work deals with the clarification of the legislative framework of the eIDAS regulation and related laws and introduces services creating trust. The thesis proposes a solution of NIA integration using UML diagrams and TOGAF framework.

Information security is an essential part of all information systems; especially in large organizations and companies dealing with classified material. Every large information system has an architecture that includes many parts that together form an Enterprise Architecture. The aim of this thesis is to study how to describe several security functions in an Enterprise Architecture and also how to ensure accountability between requirements and the implementation of the security functions. The description is for stakeholders on a conceptual level rather than a technical level. The study has been carried out by comparing the theoretical framework that has been formed by a study of the literature, and the empirical framework that has been formed by a group discussion and interviews with Information Security Consultants from Combitech AB. The process of the study was to obtain a theoretical background about Enterprise Architectures and then generate prototypes that could be tested in the interviews. The tests gave suggestions regarding how to change the prototypes to find the optimal way to describe security functions on a conceptual level. The final result of this study is to use integrated views for each security function. The integrated view should include: an identifier, a brief description of the security function, the requirements and a picture or use case. For the accountability, the requirements are numbered and displayed in the picture, in this way the stakeholder can see how the requirements are fulfilled.

This thesis deals with the topic of benefits and challenges of Enterprise Architecture (EA) use in organizations. The main objective of this thesis is the critical analysis of EA potential use in sample organization by examining its benefits and challenges, which results in form of recommendations necessary for efficient management of the organization using EA. Firstly, the thesis introduces the topic of EA along with its core concepts and principles. Then, the author discusses main drivers for EA and its typical application. Perceived in the field of EA benefits and challenges are identified and classified. The result is then confronted with a practical case study, which describes EA application in a sample organization. The author conducts the experimental EA initiative in that organization, by modeling current state (as-is) and potential solution architectures. The main deliverable of this initiative for the organization is the critical analysis of potential EA use within the organization with the identification of its added value and challenges. The findings are then summarized in form of recommendations for the future development of information systems of the organization.

In today's economics, medium and large-size companies are trying to gain a competitive advantage from specialization and centralization of supporting services. This trend affects also areas of enterprise architecture and integration where they establish particular teams to support the disciplines in regular manner. Despite a lot of research activities oriented towards these topics, there are only a few focusing on organizational aspects and cooperation between enterprise architecture and integration teams. As the companies are on different levels of the maturity in both areas and focusing on different aspects of architecture and integration, there is no simple solution that could provide detailed guidelines for establishing the right cooperation approach. Goal of this dissertation is to propose a cooperation model for architecture and integration teams that should make cooperation between such teams more efficient. Integral part of the dissertation is to verify the model in real environment. The model is built on top of integration activities performed either in enterprise architecture or integration teams or both. These activities are categorized into particular integration areas and relations are identified between integration areas and architecture areas defined according to TOGAF architecture framework. The resulting model is then being used to depict various kind of cooperation between architecture and integration teams based on the companys' integration goals. Verification of the model is performed in financial enterprise in two cases and confirms the benefits of the model.

En nuestro país, el sistema de justicia se encuentra conformado por el Ministerio Público, el Tribunal Constitucional, la Junta Nacional de Justicia, la Academia de la Magistratura, y finalmente, pero no menos importante, el Poder Judicial. Esta última entidad mencionada, es un poder del estado que se encarga de administrar justicia a través de sus órganos jurisdiccionales, en base a la Constitución política del Perú y a sus leyes. El Perú debe realizar cambios en sus procesos para mejorar los diferentes servicios de justicia brindados. Para mejorar los servicios del Poder Judicial se propone implementar arquitectura empresarial, la cual permite alinear los objetivos estratégicos con las tecnologías de información. En la tesis “Propuesta de un modelo de Arquitectura Empresarial para una Corte Superior de Justicia” se desarrollará una propuesta de mejora de servicios a través de arquitectura empresarial a través de la metodología TOGAF. La propuesta comienza con el marco teórico que abarca conceptos de justicia, así como de arquitectura empresarial; luego se explica la situación actual del Poder Judicial, el planteamiento del problema y la justificación de este. A la mitad de la tesis se presenta el objetivo de la propuesta, seguida de la propuesta de solución al problema encontrado, para finalmente brindar las conclusiones y recomendaciones. Mediante el marco de trabajo Zachman se ha realizado el análisis de la situación actual por el cual se determinado que el macro proceso más importante es la “Gestión de procesos judiciales”; se ha usado el diagrama de causa – efecto para encontrar las causas del problema. La propuesta se ha desarrollado en base modelos de mejoras internacionales y una selección de buenas prácticas a través de un modelo propuesto de arquitectura empresarial. La presente tesis es una propuesta que debe servir como modelo para la implementación de una arquitectura empresarial en todo el Poder Judicial. / In our country, the justice system is formed by the Public Ministry, the Constitutional Court, the National Board of Justice, the Academy of the Magistracy, and last but not least, the Power of attorney. This last entity mentioned is a power of the state that is responsible for administer justice through its jurisdictional bodies, based on the Political Constitution of Peru and its laws. Peru must make changes in its processes to improve the different justice services provided. To improve the services of the Judiciary, it is proposed to implement business architecture, which allows aligning strategic objectives with information technologies. In the thesis "Proposal of a Business Architecture model for a Superior Court of Justice" a proposal for improving services through business architecture through the TOGAF methodology will be developed. The proposal begins with the theoretical framework that includes concepts of justice, as well as business architecture; then the current situation of the Judiciary, the approach to the problem and its justification are explained. In the middle of the thesis, the objective of the proposal is presented, followed by the proposed solution to the problem encountered, to finally provide the conclusions and recommendations. Through the Zachman framework, the analysis of the current situation has been carried out, whereby it was determined that the most important macro process is the "Management of judicial processes"; The cause - effect diagram has been used to find the causes of the problem. The proposal has been developed based on international improvement models and a selection of good practices through a proposed business architecture model. This thesis is a proposal that should serve as a model for the implementation of a business architecture throughout the Judiciary. / Tesis

Enterprise Architecture endeavours to resolve the complexity of increasingly distributed systems by aligning business vision with IT strategy, which in turn should reduce the overall costs of IT in the business and provide simpler, better and faster solutions to business problems. There are many Enterprise Architecture frameworks. The main purpose of most of these frameworks is to assist with the challenges of managing the increased complexity of distributed systems, aligning business vision with IT strategy and reducing IT costs. Many of the studies which produced the results stating Enterprise Architecture aligns business vision and reduces IT costs, were based on Zachman’s work, and most of the published Enterprise Architecture success stories focus on the benefits provided to the company with regards to IT. In contrast very little documentation could be found that addresses the impact of Enterprise Architecture implementations on the individuals and systems within a company. If the individuals as the main implementers of any strategy are impacted negatively by Enterprise Architecture management decisions, there would be a negative impact on the return on investment of the company. Enterprise Architecture allows the use of overlapping departments’ processes and data, which translates into less development time as system components would already exist. Changes that are made to the Enterprise Architecture result in several additional changes that had to be implemented by the software developers. These changes influenced the workload, roles and responsibilities of the developers in such a way that the development team became negative about the additional work. The purpose of this study was to investigate the impact of Enterprise Architecture management decisions on the responsibilities, work experience and attitude towards Enterprise Architecture of the software developers in a company that develops software by exploring and describing the nature of software development. Based on the findings of this study, a list of impact of Enterprise Architecture decisions on the responsibilities of software developers in companies that develop software were identified. In this respect, the study identified impacts of Enterprise Architecture management decisions as well as possible solutions to these impacts. / Computing / M. Sc. (Information Systems)

Enterprise Architecture endeavours to resolve the complexity of increasingly distributed systems by aligning business vision with IT strategy, which in turn should reduce the overall costs of IT in the business and provide simpler, better and faster solutions to business problems. There are many Enterprise Architecture frameworks. The main purpose of most of these frameworks is to assist with the challenges of managing the increased complexity of distributed systems, aligning business vision with IT strategy and reducing IT costs. Many of the studies which produced the results stating Enterprise Architecture aligns business vision and reduces IT costs, were based on Zachman’s work, and most of the published Enterprise Architecture success stories focus on the benefits provided to the company with regards to IT. In contrast very little documentation could be found that addresses the impact of Enterprise Architecture implementations on the individuals and systems within a company. If the individuals as the main implementers of any strategy are impacted negatively by Enterprise Architecture management decisions, there would be a negative impact on the return on investment of the company. Enterprise Architecture allows the use of overlapping departments’ processes and data, which translates into less development time as system components would already exist. Changes that are made to the Enterprise Architecture result in several additional changes that had to be implemented by the software developers. These changes influenced the workload, roles and responsibilities of the developers in such a way that the development team became negative about the additional work. The purpose of this study was to investigate the impact of Enterprise Architecture management decisions on the responsibilities, work experience and attitude towards Enterprise Architecture of the software developers in a company that develops software by exploring and describing the nature of software development. Based on the findings of this study, a list of impact of Enterprise Architecture decisions on the responsibilities of software developers in companies that develop software were identified. In this respect, the study identified impacts of Enterprise Architecture management decisions as well as possible solutions to these impacts. / Computing / M. Sc. (Information Systems)

Evidence of the interest in enterprise architecture (EA) is seen in the number of enterprise architecture frameworks (EAF) in existence. An EAF is responsible for the realisation of an EA, and therefore acts as a container for the terminology of EA. The lack of acceptance of terms and definitions, coupled with the phenomenon of the large number of EAFs, indicate a silo type understanding of what EA is, which leads to a lack of clarity in the conceptual foundations of EA. By following a design science research (DSR) approach, a conceptual artefact (an enterprise architectonic (EAt)) is created to address the lack of clarity in the conceptual foundations of EA thinking and practice. The EAt serves as a conceptual device to represent the fundamental understanding of EA in terms of concepts and their relationships. The content of the EAt is derived from applying a structured interpretation method (SIM) to three prominent EAFs (The Open Group Architecture Framework, the Department of Defense Architecture Framework and the Zachman Framework for Enterprise Architecture). The SIM’s results are an EA understanding that consists of an EA claim: EA is similar in intent to the enterprise as a worldview is to the world. It is supported by six EA propositions:  Proposition 1: EA’s underlying theoretical knowledge is in a pre-suppositional state.  Proposition 2: EA is a description of the structure of the systems of an enterprise.  Proposition 3: EA represents the enterprise in time-oriented architectures such as an as-is, to-be and has-been architecture.  Proposition 4: EA translates the values/strategy of the enterprise into operational systems appropriate to the information society.  Proposition 5: EA provides a means to manage decisions about the IT/IS management and implementation in the enterprise.  Proposition 6: EA captures a representation of the enterprise in the form of a model or set of models. The six EA propositions are analysed through the lens of Heidegger's equipment analysis, to produce a set of architectonic elements. These elements are arranged in the EAt to create a conceptual device to support the fundamental understanding of EA. / Centre for Applied Information and Communication / Ph.D. (Information Systems)

Evidence of the interest in enterprise architecture (EA) is seen in the number of enterprise architecture frameworks (EAF) in existence. An EAF is responsible for the realisation of an EA, and therefore acts as a container for the terminology of EA. The lack of acceptance of terms and definitions, coupled with the phenomenon of the large number of EAFs, indicate a silo type understanding of what EA is, which leads to a lack of clarity in the conceptual foundations of EA. By following a design science research (DSR) approach, a conceptual artefact (an enterprise architectonic (EAt)) is created to address the lack of clarity in the conceptual foundations of EA thinking and practice. The EAt serves as a conceptual device to represent the fundamental understanding of EA in terms of concepts and their relationships. The content of the EAt is derived from applying a structured interpretation method (SIM) to three prominent EAFs (The Open Group Architecture Framework, the Department of Defense Architecture Framework and the Zachman Framework for Enterprise Architecture). The SIM’s results are an EA understanding that consists of an EA claim: EA is similar in intent to the enterprise as a worldview is to the world. It is supported by six EA propositions:  Proposition 1: EA’s underlying theoretical knowledge is in a pre-suppositional state.  Proposition 2: EA is a description of the structure of the systems of an enterprise.  Proposition 3: EA represents the enterprise in time-oriented architectures such as an as-is, to-be and has-been architecture.  Proposition 4: EA translates the values/strategy of the enterprise into operational systems appropriate to the information society.  Proposition 5: EA provides a means to manage decisions about the IT/IS management and implementation in the enterprise.  Proposition 6: EA captures a representation of the enterprise in the form of a model or set of models. The six EA propositions are analysed through the lens of Heidegger's equipment analysis, to produce a set of architectonic elements. These elements are arranged in the EAt to create a conceptual device to support the fundamental understanding of EA. / Centre for Applied Information and Communication / Ph. D. (Information Systems)

The subject of the dissertation is exploring the use of enterprise architecture as a managerial method to support the transformation (reform) of Czech public administration. The dissertation shows that enterprise architecture is in the public sector of Czech Republic still not used, even though public sector organizations want to continue improving its services and management in a way where enterprise architecture could be beneficial. The thesis aims to understand the needs of public authorities towards the possibilities and benefits of enterprise architecture and propose such a customization that could increase the adoption and use of enterprise architecture by these organizations. The main objective of thesis is to summarize individual partial results of author's research into the design of overall Concept of the structure and procedure of implementation of National Public Administration Architecture of Czech Republic. Research within the dissertation combines two basic research methods. Both represent qualitative research methods, suitable for the development of new methods and artefacts (Design Science Research) and for proof the hypotheses and outputs (Case Studies). To create preconditions of the proposed concept was necessary to verify the status of the Czech public administration from the perspective of current rate, needs and interest for the use of enterprise architecture to support the reform of public administration. To verify the status of environment and the needs served basic research questions, further elaborated into detailed questions of multiple case study. In the analytical part of the thesis are summarized significant findings the analysis of information resources and literature in the areas of a) the definition of enterprise architecture, its position, role and development trends for design changes in the structure and metamodel of TOGAF framework, b) the existence of available models and key design principles of application architecture reference model and c) experience of the implementation and use of enterprise architecture for public administration reform. The main part of the thesis focuses on the proposals in three areas. In the first part are designed theoretical and practical changes in the definition, structure and metamodel of enterprise architecture to better support its application for real reform of public administration, not only to improve the management of IT. Presented proposals are in the same time providing solutions to some identified discrepancies in the trends of development of enterprise architecture. General proposals are in parallel applied as changes in the standard TOGAF, which is then recommended as the initial framework for the National Public Administration Architecture of the Czech Republic. In the second part of the proposals are presented principles and content of the reference model of application architecture. This is an example the accelerator necessary to solve the discrepancy between the scope of enterprise architecture and its feasibility with limited resources. The thesis emphasize the industry adjusted model for public administration and its application in a hierarchical, fractal environments typical of public administration. In the third part are presented key components of the overall concept, using as well as previous research results of this thesis. As the key elements are presented proposal for the structure of National Public Administration Architecture of the Czech Republic environment, proposal for the procedure of implementation of National Architecture and the proposal of products (outputs) for deploying National Architecture in Czech Republic. Additionally are formulated proposals of ways of using National Architecture in Czech public administration and conditions and prerequisites for introduction of National Architecture in the Czech public administration.