85 research outputs found

    Using ArchiMate to Assess COBIT 5 and ITIL Implementations

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    The assessment of Enterprise Governance of IT (EGIT) mechanisms, such as COBIT and ITIL, is considered highly complex and implies a duplication of resources. The main goal of this research is to reduce the complexity of EGIT mechanisms by facilitating the assessment of these mechanisms when used simultaneously. Organisational stakeholders should be able to easily understand the impact of implementing ITIL on COBIT 5 Processes Performance without being COBIT experts. On the other hand, they should know their organisation’s positioning according to ITIL, even if they just follow COBIT and do not master ITIL. In order to fulfil our goal, we propose a model that uses TIPA for ITIL, COBIT PAM and ArchiMate to analyse the impact of ITIL implementation on COBIT processes performance, and vice-versa. We demonstrate our proposal by analysing the impact of the Incident Management and Request Fulfilment ITIL processes on the COBIT 5 related process

    Integrating enterprise architecture and Np Iso 4457

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    The growing importance of NP ISO 4457 and Enterprise Architecture (EA) is becoming increasingly recognized. However, since they are distinct governance approaches with different perspectives, organizations end up facing several challenges, which leads to efficiency problems, waste of resources and misalignment. This thesis proposes to overcome such problems by integrating NP ISO 4457 with EA. This way, a Reference Architecture is developed, using Archimate, which helps organizations to conform to the Standard’s requirements, by determining how processes and resources are organized and realized. This is a unique contribution, since the Reference Architecture can be applied generically to every organization

    Using metamodeling to represent lean six sigma for IT service improvement

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    Motivation-oriented Architecture Modelling for e-Healthcare Prosumption

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    The enterprise architecture (EA) is a coherent and consistent set of principles and rules that guide system design. In EA modelling methods, an enterprise is identified with institution, business or administrative unit, a firm or an industrialized region. Enterprise architecture is also considered as strategic information assets, which determine the business mission, the technology necessary to perform the mission, the transitional processes for implementing new technologies in response to the changing mission needs. In this paper, the human i.e., stakeholders\u27 roles are emphasized as well as the motivation orientation in the enterprise architecture development is discussed. The following questions are formulated: who is the stakeholder of the EA, who is accountable and responsible for EA development, and what goals, constraints, and values are realized in the stakeholder activities\u27 processes for the organization mission and vision by example of e-healthcare prosumption system

    Conceptual modeling for the design of intelligent and emergent information systems

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    A key requirement to today's fast changing economic environment is the ability of organizations to adapt dynamically in an effective and efficient manner. Information and Communication Technologies play a crucially important role in addressing such adaptation requirements. The notion of `intelligent software' has emerged as a means by which enterprises can respond to changes in a reactive manner but also to explore, in a pro-active manner, possibilities for new business models. The development of such software systems demands analysis, design and implementation paradigms that recognize the need for ‘co-development’ of these systems with enterprise goals, processes and capabilities. The work presented in this paper is motivated by this need and to this end it proposes a paradigm that recognizes co-development as a knowledge-based activity. The proposed solution is based on a multi-perspective modeling approach that involves (i) modeling key aspects of the enterprise, (ii) reasoning about design choices and (iii) supporting strategic decision-making through simulations. The utility of the approach is demonstrated though a case study in the field of marketing for a start-up company

    How Should Business Informatics Integrate Service, Process, Work System, and Enterprise Orientations?

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    Current research related to the subject matter of business informatics reflects divergent orientations that are fundamentally about representing, analyzing, and designing services or processes or work systems or enterprises. After summarizing those four orientations and citing typical exemplars, this paper identifies a variety of paths toward greater integration between different orientations within business informatics. It identifies central topics for each orientation along with areas in which each orientation provides ideas that complement other orientations and reveal possible synergies. Both the approach for identifying potential synergies and the proposed synergies themselves could encourage greater integration within business informatics

    Evaluating pedagogical practices supporting collaborative learning for model-based system development courses

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    Model-based software development (MBSD) has been widely used in industry for its effectiveness of code generation, code reuse and system evolution. At different stages of the software lifecycle, models -- as opposed to actual code -- are used as abstractions to present software development artifacts. In a university software engineering curriculum, compared to other concrete and tangible courses, e.g., game and app development, these levels of abstraction are often difficult for students to understand, and further, to see models' usefulness in practice. This paper presents an evaluation of pedagogical practices supporting collaborative learning for MBSD courses from experiences of teaching them at University of Oslo. The focus is to answer two research questions: 1) What are the challenges and possibilities when using a collaborative learning approach for teaching modelling and architecture? 2) What are the challenges and benefits of having a holistic approach to MBSD courses in light of the requirements of academia and the needs of industry? The term “holistic” is understood 1) as an approach that involves human factors (users), technology and processes, 2) as an approach to teaching MBSD courses where modelling for Enterprise Architecture is taught together with System Architecture and Model-Driven Language Engineering. Empirical data was collected through interviews, questionnaires, and document analysis. The paper’s research results show that three different course perspectives (Modeling for Enterprise Architecture with Business Architecture, System Architecture and Model Driven Language Engineering) are essential parts of teaching modeling courses, and an industry field study shows that industry sees the potential of having junior architects to provide support to a team and solving basic architectural problems

    A COMMITMENT-BASED REFERENCE ONTOLOGY FOR SERVICE: HARMONIZING SERVICE PERSPECTIVES

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    Nowadays, the notion of service has been widely adopted in the practice of economic sectors (e.g., Service, Manufacturing, and Extractive sectors), as well as, in the research focus of various disciplines (e.g., Marketing, Business, and Computer Science). Due to that, a number of research initiatives (e.g., service ontologies, conceptual models, and theories) have tried to understand and characterize the complex notion of service. However, due to particular views of these disciplines and economic sectors, a number of different characterizations of service (e.g., service as interaction, service as co-creation of value, and service as capability / manifestation of competence, among others) have been proposed. The existence of these various non-harmonized characterizations, and the focus on a terminological debate about the service concept, instead of about the service phenomena from a broad perspective, make the establishment of a unified body of knowledge for service difficult. This limitation impacts, e.g., the establishment of unified conceptualization for supporting the smooth alignment between Business and IT views in service-oriented enterprise architecture (SoEA), and the design and usage of service modeling languages. In this thesis we define a theoretical foundation for service based on the notion of service commitment and claims as basic elements in the characterization of service relations along service life-cycle phases (service offer, service negotiation, and service delivery). As discussed in this work, this theoretical foundation is capable of harmonizing a number of service perspectives found in the literature. Such theoretical foundation is specified in a well-founded core reference ontology, named UFO-S, which was designed by adopting a sound ontological engineering apparatus (mainly, a well-founded ontology representation language, OntoUML, and approaches of model verification and model validation). As a kind of theory, UFO-S was applied in the analysis of SoEA structuring principles in order to define a commitment-based SoEA view, which remarks social aspects inherent in service relations usually underexplored in widely adopted service-oriented approaches (such as SOA-RM by OASIS, ITIL, and ArchiMate). Based on this, UFO-S was also applied in an ontological analysis of service modeling at ArchiMates Business layer. Such ontological analysis showed some limitations concerned to semantic ambiguity and lack of expressiveness for representing service offerings (and type thereof) and service agreements in SoEA. In order to address these limitations, three service modeling patterns (service offering type pattern, service offering pattern, and service agreement pattern) were proposed taking as basis UFO-S. The usefulness of these patterns for addressing these limitations was evidentiated by means of an empirical evaluation. Finally, we can say that, beyond offering a broad and well-founded theoretical foundation for service able to harmonize service perspectives, UFO-S presented benefits as a reference model in the analysis of SoEA structuring principles, and in the (re)design of service modeling languages

    Malliperustainen organisaation toiminnan ja rakenteen kehittäminen

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    Organisaatioiden tavoitteena on mahdollisimman tehokas, eniten arvoa sekä hyötyä tuottava toiminta. Se edellyttää jatkuvaa toiminnan parantamista, toimintaympäristön muutoksiin reagoimista ja erilaisten muutosten läpiviemistä organisaatiossa. Koska organisaatio on monista eri toiminnallisista ja rakenteellisista osatekijöistä muodostuva kokonaisuus, sen kaikissa kehittämistoimenpiteissä on syytä huomioida kaikki osa-alueet kokonaisvaltaisesti. Kokonaisarkkitehtuurin kehittäminen on keino läpiviedä muutoksia organisaatiossa, sillä se käsittää organisaation koko toiminnan ja rakenteen. Mallintaminen on systemaattinen tapa visualisoida kokonaisarkkitehtuuriin liittyviä osatekijöitä ja muutoksia kokonaisvaltaisesti. Tässä tutkielmassa esitellään käytännönläheinen malliperustainen lähestymistapa kokonaisvaltaiseen suunnitteluun, jota voidaan hyödyntää kehittämisen apuvälineenä eri laajuisten muutosten läpiviemiseen organisaatiossa. Lähestymistavan avulla mahdollista mallintaa toiminnalliset ja rakenteelliset osatekijät, sekä niiden väliset riipuvuussuhteet. Kokonaisvaltaisudella tarkoitetaan kaikkia kehittämiseen liittyviä asioita strategisista tavoitteista ja vaatimuksista yksittäisten kehitysprojektien tunnistamiseen. Keskeistä kokonaisvaltaisuudessa on huomioida liiketoimintaan, tietojärjestelmiin ja infrastruktuuriin liittyvät osatekijät, sekä niiden väliset riippuvuussuhteet. Malliperustaista lähestymistapaa voidaan soveltaa eri laajudessa ja eri tarkkuustasoilla. Mallintamisen kohteena voi olla koko organisaatio, jokin sen rajattu alue tai yksittäinen ratkaisu. Tarkkuustaso voi vaihdella yleiseltä tasolta hyvinkin yksityiskohtaiseen. Tutkielmassa esitellään kokonaisvaltaisen kehittämisen ja mallintamisen standardit TOGAF-kokonaisarkkitehtuuriviitekehys ja ArchiMate-mallinnuskieli, sekä kuinka niitä voidaan soveltaa yhdessä. Tutkielmassa arvioidaan myös kuinka Sparx Systems Enterprise Architect-mallinnusväline soveltuu kokonaisvaltaiseen kehittämiseen
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