Genres of Inquiry in Design Science Research: Applying Search Conference to Contemporary Information Systems Security Theory

This dissertation investigates the core subject of knowledge in design-science research (DSR). In contrast to natural and social sciences that are more explanatory in nature, design-science research is concerned with solving complex practical problems that are ill-defined or of a “wicked” nature. At the same time, as in any research activity, design-science research is also concerned with the production of knowledge. In the process of design-science research, the researcher must act as both designer and scientist. Design knowledge is distinct from scientific knowledge, however, and must be evaluated against a different set of criteria. Since the DSR process is iterative the scope of DSR knowledge can evolve, abstracting general (nomothetic) knowledge from situated (idiographic) artifacts or, alternately, applying abstract knowledge to situated settings. General knowledge is different from situated knowledge and must be evaluated accordingly. In the current design-science literature, situated (idiographic) knowledge is associated with design, and abstract (nomothetic) knowledge is associated with science. This dissertation proposes that design can be abstract and that science can be situated in scope. The purpose of the dissertation is to identify the problems with the current conceptualization of contributions in DSR, offer an alternative view of the design-science paradigm as one having multiple genres of inquiry, provide the criteria for framing and evaluating design-science contributions, and describe how this will help address some of the current debate and clarify the current discourse. The dissertation is structured in three parts. Part I employs a theoretical argument to develop a framework for these genres of inquiry in design-science research and demonstrates how the evaluation criteria for design-science research studies change as the research moves from one genre to another. Part II is an empirical study that uses a search conference method to apply the bindpoint model (Baskerville and Lee 2013), an explanatory design theory to the problem of information security risk resulting from consumerization and BYOD (bring your own device). Part III reflects on the learning from the theoretical and the practical discourse and provides the contributions and opportunities for future research. This dissertation contributes to the design-science field by providing a more nuanced understanding of the contributions and evaluation criteria of design-science research. It contributes to the Information Systems (IS) security field by providing a design theory for managing BYOD security. Lastly, it contributes to Information Systems research methods by introducing the search conference method as a viable approach for theorizing and for evaluating design-science contributions

Adaptable iISS Small-Gain Formulation and Its Application to Observer-Based Output Feedback Design

For a popular class of nonlinear systems, an observer can be constructed by rendering estimation error dynamics linear in unmeasured state variables. However, measurement disturbance violates the structure of the error dynamics and brings in undesirable terms in which the estimation error and the plant state are often coupled and multiplied by the measurement disturbance. This is why local analysis and semi-global design have been performed in many cases. This paper introduces new flexibility into the iISS small-gain framework to accommodate such terms. It is demonstrated how the flexible framework enables global analysis of observer-based output feedback control systems to achieve convergence and boundedness in the presence of measurement disturbance.N

Contribution of offset to defence industrialisation in Indonesia

Offset is compensation given to a buyer country for an arms sale. Initially perceived as ‘necessary evil’ in an imperfect defence market, it now serves dual purposes: a marketing strategy for defence industry and a procurement policy for buyer country to generate add on benefits from arms import. Offsets proliferate, and so are stricter mandatory government policies. Still evaluation of offset has been difficult, mostly done in a country-based setting using anecdotal evidence that result in mixed findings. Following the issuance of mandatory offset policy in Indonesia through Law on Defence Industry in 2012, evaluation of past and current offset practice have become not only relevant but also critical to provide policy feedback. This dissertation provides an empirical examination on how offset has been understood and practised in Indonesia, and its contribution to defence industrialisation. The timeframe chosen is 1988-2014, when countertrade has been used to support the lifecycle of strategic industries: development (1988-1998), survival (1999-2009), and revitalisation (2010-2014). This study derives its validity and reliability from triangulation, comprising secondary data, survey, and case study. Three variables are analysed: technology development through ‘strategic industries’, defence offset, and defence industrialisation. Technology development focuses on how technology policy centred on a strategic industries paradigm and ladder of production to initiate industrialisation push. Defence offset discusses the conceptual and practical aspects of offset in Indonesia, including strategic objectives, regulation and institution frameworksin the defence procurement context, and offset life cycle and financing. Defence industrialisation discusses the impact of offset through employment, skill enhancement, transfer of technology, export promotion, domestic supply chain creation, and R&D. Field works were conducted in three firms representing different industrial sectors: PT DI (aerospace), PT Pal (shipbuilding), and PT Pindad (landsystem). Research findings indicate that, first, offset practice has mostly taken place on an ad hoc basis, with no clear reference to strategic objectives, as well as long-term management and financing- that mirror deficiencies in defence procurement. Second, as result of the deficiencies, offset results have been varied from one firm to another, across the different industrial sectors of aerospace, maritime, as well as ammunition and land system. While offset has a positive impact on skill enhancement and technology transfer, it seldom translates into new employment, supply chain creation, export, or R&D. This study generates the following recommendations. First, Indonesia needs to strengthen the management of offset through pre-offset planning and preparing practical guidelines for offset stakeholders in parallel with human resources to support the programme. This means identification of offset potential in procurement (convergence of long term technology policy and long term defence procurement plan), estimation of offset premium cost, allowing participation of industry in the early stage of the offset cycle, as well as devising methods of evaluating offset. Second, Indonesia needs to formulate strategic objectives for offset that relate closely to the dual purposes of defence modernisation and industry revitalisation. Third, Indonesia must strengthen the technology absorptive capability in industry in order to sustain the benefit of offset

Control of AC/DC microgrids with renewables in the context of smart grids including ancillary services and electric mobility

Microgrids are a very good solution for current problems raised by the constant growth of load demand and high penetration of renewable energy sources, that results in grid modernization through “Smart-Grids” concept. The impact of distributed energy sources based on power electronics is an important concern for power systems, where natural frequency regulation for the system is hindered because of inertia reduction. In this context, Direct Current (DC) grids are considered a relevant solution, since the DC nature of power electronic devices bring technological and economical advantages compared to Alternative Current (AC). The thesis proposes the design and control of a hybrid AC/DC Microgrid to integrate different renewable sources, including solar power and braking energy recovery from trains, to energy storage systems as batteries and supercapacitors and to loads like electric vehicles or another grids (either AC or DC), for reliable operation and stability. The stabilization of the Microgrid buses’ voltages and the provision of ancillary services is assured by the proposed control strategy, where a rigorous stability study is made. A low-level distributed nonlinear controller, based on “System-of-Systems” approach is developed for proper operation of the whole Microgrid. A supercapacitor is applied to deal with transients, balancing the DC bus of the Microgrid and absorbing the energy injected by intermittent and possibly strong energy sources as energy recovery from the braking of trains and subways, while the battery realizes the power flow in long term. Dynamical feedback control based on singular perturbation analysis is developed for supercapacitor and train. A Lyapunov function is built considering the interconnected devices of the Microgrid to ensure the stability of the whole system. Simulations highlight the performance of the proposed control with parametric robustness tests and a comparison with traditional linear controller. The Virtual Synchronous Machine (VSM) approach is implemented in the Microgrid for power sharing and frequency stability improvement. An adaptive virtual inertia is proposed, then the inertia constant becomes a system’s state variable that can be designed to improve frequency stability and inertial support, where stability analysis is carried out. Therefore, the VSM is the link between DC and AC side of the Microgrid, regarding the available power in DC grid, applied for ancillary services in the AC Microgrid. Simulation results show the effectiveness of the proposed adaptive inertia, where a comparison with droop and standard control techniques is conducted.As Microrredes são uma ótima solução para os problemas atuais gerados pelo constante crescimento da demanda de carga e alta penetração de fontes de energia renováveis, que resulta na modernização da rede através do conceito “Smart-Grids”. O impacto das fontes de energia distribuídas baseados em eletrônica de potência é uma preocupação importante para o sistemas de potência, onde a regulação natural da frequência do sistema é prejudicada devido à redução da inércia. Nesse contexto, as redes de corrente contínua (CC) são consideradas um progresso, já que a natureza CC dos dispositivos eletrônicos traz vantagens tecnológicas e econômicas em comparação com a corrente alternada (CA). A tese propõe o controle de uma Microrrede híbrida CA/CC para integrar diferentes fontes renováveis, incluindo geração solar e frenagem regenerativa de trens, sistemas de armazenamento de energia como baterias e supercapacitores e cargas como veículos elétricos ou outras (CA ou CC) para confiabilidade da operação e estabilidade. A regulação das tensões dos barramentos da Microrrede e a prestação de serviços anciliares são garantidas pela estratégia de controle proposta, onde é realizado um rigoroso estudo de estabilidade. Um controlador não linear distribuído de baixo nível, baseado na abordagem “System-of-Systems”, é desenvolvido para a operação adequada de toda a rede elétrica. Um supercapacitor é aplicado para lidar com os transitórios, equilibrando o barramento CC da Microrrede, absorvendo a energia injetada por fontes de energia intermitentes e possivelmente fortes como recuperação de energia da frenagem de trens e metrôs, enquanto a bateria realiza o fluxo de potência a longo prazo. O controle por dynamical feedback baseado numa análise de singular perturbation é desenvolvido para o supercapacitor e o trem. Funções de Lyapunov são construídas considerando os dispositivos interconectados da Microrrede para garantir a estabilidade de todo o sistema. As simulações destacam o desempenho do controle proposto com testes de robustez paramétricos e uma comparação com o controlador linear tradicional. O esquema de máquina síncrona virtual (VSM) é implementado na Microrrede para compartilhamento de potência e melhoria da estabilidade de frequência. Então é proposto o uso de inércia virtual adaptativa, no qual a constante de inércia se torna variável de estado do sistema, projetada para melhorar a estabilidade da frequência e prover suporte inercial. Portanto, o VSM realiza a conexão entre lado CC e CA da Microrrede, onde a energia disponível na rede CC é usada para prestar serviços anciliares no lado CA da Microrrede. Os resultados da simulação mostram a eficácia da inércia adaptativa proposta, sendo realizada uma comparação entre o controle droop e outras técnicas de controle convencionais

14th Conference on Dynamical Systems Theory and Applications DSTA 2017 ABSTRACTS

From Preface: This is the fourteen time when the conference “Dynamical Systems – Theory and Applications” gathers a numerous group of outstanding scientists and engineers, who deal with widely understood problems of theoretical and applied dynamics. Organization of the conference would not have been possible without a great effort of the staff of the Department of Automation, Biomechanics and Mechatronics. The patronage over the conference has been taken by the Committee of Mechanics of the Polish Academy of Sciences and the Ministry of Science and Higher Education. It is a great pleasure that our invitation has been accepted by so many people, including good colleagues and friends as well as a large group of researchers and scientists, who decided to participate in the conference for the first time. With proud and satisfaction we welcome nearly 250 persons from 38 countries all over the world. They decided to share the results of their research and many years experiences in the discipline of dynamical systems by submitting many very interesting papers. This booklet contains a collection of 375 abstracts, which have gained the acceptance of referees and have been qualified for publication in the conference proceedings [...]

An integrated framework for implementing technology roadmapping in industry

Managing technological change in business is difficult. Especially for organisations in technology-based sectors where they are required to rethink and redesign their strategies to ensure they remain competitive in evolving markets. These organisations are focusing their attention on the use of managerial tools and methodologies to help generate a successful business plan. One such tool is Technology Roadmapping (TRM), whose main objective is the alignment of companies’ strategies towards the fulfilment of their business objectives and goals. A better understanding of TRM has resulted in organisations adopting this methodology into their business practices while others perceive its implementation as a complex process requiring a vast amount of information. An adequate framework facilitating the implementation process is lacking. Therefore, in order to address these needs, and driven by the gaps identified in the literature, an integrated framework supporting organisations in the task of implementing technology roadmapping is developed in this research. It is composed of three major elements. Firstly, the implementation lifecycle, that guides users through activities for implementation and application in their organisations. Secondly, an integrated data-knowledge structure composed of a set of models where data, information and knowledge from the market, product, technology, and R&D stages are identified. And finally, an integrated software tool, based on the structure and a selected roadmapping approach, which supports the execution of processes and activities during a roadmapping exercise. The framework is tested and validated in a series of case studies in the aerospace industry. The initial studies, conducted during the development of the framework, allowed refinements and improvements to be implemented prior to the second set of case studies, following the completion of this framework. The results from the case studies confirm the feasibility and usability of applying the developed framework into practice as well as providing recommendations for future work

On 'a continuum with expansion' : UK-US intelligence relations & wider reflections on international intelligence liaison

Since 9/11, intelligence liaison has increased exponentially. Yet, both in international affairs and within the academic fields of international relations (IR) and intelligence studies, the phenomenon of intelligence liaison remains under-researched and under-theorised. Moreover, intelligence studies remain remarkably disconnected from IR. Accordingly, this study attempts to advance a timely understanding of both international intelligence liaison generally, and UK-US intelligence liaison specifically, in a contemporary context. Methodologically, this is accomplished through conducting a qualitative analysis of UK-US intelligence liaison focussed on two ‘critical’ and ‘intensive’ case studies. These represent the key issues over which the UK and US have liaised, namely counter-terrorism and weapons of mass destruction (WMD) non-/counter-proliferation. In practical terms, the ‘rise’ of intelligence liaison can be substantially explained. However, the phenomenon itself can only be ‘theorised’ so far. Intelligence is, by its very nature, a fragmented subject. Accordingly, cascades of complexities increasingly enter, especially at the lower/micro levels of analysis - where the details and specifics concerning particular sources and operations matter further. Therefore, intelligence liaison effectively represents the concept of ‘complex co-existence plurality’ in action. This is both at and across all its different, yet closely interrelated, levels of analysis, and also when broken down into eight systemic variables or attributes. Notwithstanding this complexity, wider conclusions can be drawn, allowing this thesis to advance the proposition that we are now witnessing the globalisation of intelligence. Overall, this trend is facilitated through the developments occurring in a web of overlapping international intelligence liaison arrangements, which collectively span the globe. Reflective of a continuously evolving attempt for ‘optimum outreach’, these intraliaison developments include: firstly, the establishing of frameworks and defining of operational parameters for the intelligence liaison arrangements, and then their subsequent consolidation (or normalisation) and optimisation over time. These wider trends are simultaneously observable in the microcosm of UK-US intelligence liaison relations, which are also on ‘a continuum with expansion’ as the UK and US remain broadly exemplary ‘friends and allies’

An integrated framework for implementing technology roadmapping in industry

Managing technological change in business is difficult. Especially for organisations in technology-based sectors where they are required to rethink and redesign their strategies to ensure they remain competitive in evolving markets. These organisations are focusing their attention on the use of managerial tools and methodologies to help generate a successful business plan. One such tool is Technology Roadmapping (TRM), whose main objective is the alignment of companies’ strategies towards the fulfilment of their business objectives and goals. A better understanding of TRM has resulted in organisations adopting this methodology into their business practices while others perceive its implementation as a complex process requiring a vast amount of information. An adequate framework facilitating the implementation process is lacking. Therefore, in order to address these needs, and driven by the gaps identified in the literature, an integrated framework supporting organisations in the task of implementing technology roadmapping is developed in this research. It is composed of three major elements. Firstly, the implementation lifecycle, that guides users through activities for implementation and application in their organisations. Secondly, an integrated data-knowledge structure composed of a set of models where data, information and knowledge from the market, product, technology, and R&D stages are identified. And finally, an integrated software tool, based on the structure and a selected roadmapping approach, which supports the execution of processes and activities during a roadmapping exercise. The framework is tested and validated in a series of case studies in the aerospace industry. The initial studies, conducted during the development of the framework, allowed refinements and improvements to be implemented prior to the second set of case studies, following the completion of this framework. The results from the case studies confirm the feasibility and usability of applying the developed framework into practice as well as providing recommendations for future work