Now showing 1 - 10 of 24
  • Publication
    Untangling EA’s Long Path of Becoming a Partner for Business Transformation: The Case of Swiss Federal Railways
    (IEEE Computer Society, 2016-09-05) ; ; ;
    Rytz, Bernhard
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    Dijkman, Remco
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    Pires, Luís Ferreira
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    Rinderle-Ma, Stefanie
    We analyze the enterprise architecture management (EAM) ‘journey’ of the Swiss Federal Railways over the last twenty years. Fundamental organizational changes were matched by shifts of EAM’s focus from advocating an enterprise-wide perspective over developing the enterprise architecture toolbox to establishing business transformation support. Beyond maturity considerations, insights from this longitudinal case study can be gained from an institutional perspective, i.e., by describing the EAM journey not only as a process of establishing the EAM function, but also as a process that extends EAM effects beyond the boundaries of IT. We identify four principles that guided this process: (1) Consistency of norms and values (2) Focus on reinventing rather than maturing (3) Picking the right EAM ‘battles’, and (4) Playing on EAM’s holistic perspective.
    Scopus© Citations 7
  • Publication
    Implementing Architectural Thinking: A Case Study at Commerzbank AG
    (Springer, 2015-06-08) ; ;
    Pähler, Patrick
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    Persson, Anne
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    Stirna, Janis
    The discipline of enterprise architecture (EA) has become well-established in many organizations and is continuously discussed in academic literature. However, EA's effectiveness beyond IT is limited. The paradigm of architectural thinking aims at reaching the 90% of an organization that is not related to IT. The paper contrasts the abstract definitions of architectural thinking with empirical case study data. We find that practice has developed implementations of these abstract definitions. However, we also find new characteristics of architectural thinking that have not yet been discussed in literature. Specifically, these are the role of decisions and the role of formal governance mechanisms.
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    Scopus© Citations 13
  • Publication
    Success Factors for Federated Enterprise Architecture Model Management
    (Springer, 2015-06-08)
    Aleatrati Khosroshahi, Pouya
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    Hauder, Matheus
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    Roth, Sascha
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    Matthes, Florian
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    Persson, Anne
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    Stirna, Janis
    Recent approaches for managing Enterprise Architecture (EA) models provide technical systems to procure information from existing repositories within the application landscape of an organization. Beyond technical solutions, social factors are of utmost importance to implement a successful EA initiative. Institutional theory has for example been employed to understand crucial factors for realizing EA management (EAM) benefits through architectural thinking. Yet, it remains unclear how these social factors influence a federated approach for EA model management. Based on a socio-technical systems perspective, we investigate success factors for Federated EA Model Management (FEAMM) by conducting qualitative interviews with industry experts. Our findings suggest that success factors for FEAMM are related to the model sources, modeling instruments, and model integration aspects from a technical perspective as well as to organizational grounding, governance, enforcement, efficiency, goal alignment, and trust from a social perspective.
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    Scopus© Citations 3
  • Publication
    Management Objectives and Design Principles for the Cost Allocation of Business Intelligence
    (Association for Information Systems, 2015-07-05)
    Epple, Johannes
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    Today business intelligence (BI) systems, which provide management with decision-supportive information, are considered to be a prerequisite for organizational success. In contrast to the operation of BI, BI system management is still an emerging topic in information systems (IS) research. Even though the cost management of BI systems is highly relevant for practice, the field is widely unexplored. Cost allocations for BI systems are supposed to enhance transparency, create cost awareness and support the management of resources of the BI system. In our research we have conducted two focus group studies to examine the basis for BI cost allocations. First, we derive management goals and design principles for a BI cost allocation from an exploratory focus group. In a second step, we evaluate the goals and the design principles in a confirmatory focus group. Our research provides valuable insights on the application of BI cost allocations from our focus groups and contributes a basis for the design of BI cost allocation methods.
  • Publication
    Fail Early, Fail Often: Towards Coherent Feedback Loops in Design Science Research Evaluation
    (Association for Information Sytems, 2014-12-14) ; ;
    We propose feedback loops that increase the coherence between evaluation activities in a design science research (DSR) process. While several scholars have proposed DSR cycles with frequent evaluation activities to provide timely feedback on design activities, the question of how to ensure coherence between these activities has remained largely unaddressed. Yet, coherence is essential to claim validity not only for the DSR artifact, but also for the DSR process. Based on a review of existing DSR literature, we propose an approach that ensures coherence between initial problem definition and final evaluation activities by explicating the notion of relevance underlying the DSR project, and between design and construction activities by creating situational design specifications.We exemplarily apply our approach to an ongoing DSR project. We conclude with a research agenda, where we build on the recent debate on generalizability in information systems to identify six fruitful avenues for further research.
  • Publication
    Information Provision as a Success Factor in the Architectural Support of Enterprise Transformations
    (IEEE Computer Society, 2014-07-15) ; ;
    Aveiro, David
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    Bjekovic, Marija
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    Caetano, Artur
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    Fleischmann, Albert
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    Heuser, Lutz
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    De Kinderen, Sybren
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    Komarov, Mikhail M.
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    Koucheryavy, Yevgeni
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    Maltseva, Svetlana V.
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    Molnar, Wolfgang
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    Oberweis, Andreas
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    Proper, Henderik A.
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    Rappa, Michael
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    Schmidt, Werner
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    Schoenthaler, Frank
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    Sottet, Jean-Sébastien
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    Stary, Christian
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    Vossen, Gottfried
    Enterprise transformations (ET) fail in many cases or do not accomplish the expected goals. Enterprise architecture management (EAM) is often considered to be an appropriate means to tackle this problem by providing information that is relevant to ET managers. Therefore, we analyze, which types of information provided during an ET contributes to its success. In addition we discuss if EAM can appropriately support ETs by providing relevant information. The results show that value can be provided to ET management when business-related information on a detailed level is offered. Examples are business requirements, business functions, or qualitative measures. We find information that can be provided by EAM to be an important success factor for ETs.
    Scopus© Citations 1
  • Publication
    Architectural Support of Enterprise Transformations: Insights from Corporate Practice
    (Universität Paderborn, 2014-02-26) ; ;
    Rothenberger, Marcus
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    Kundisch, Dennis
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    Suhl, Leena
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    Beckmann, Lars
    Enterprise architecture management (EAM) is considered to be a means to contribute to fundamental change (enterprise transformations) in organizations. Based on qualitative interview data, we investigate how EAM contributes to meeting the information needs of transformation managers during an enterprise transformation (ET). We identify the type of information EAM can provide to ET management. We further identify the activities conducted during ETs that foster information needs. Our results differentiate between information that EAM can provide, can partially provide, or cannot provide, to an ET effort.
  • Publication
    A Reference Model for the Information-Based Support of Enterprise Transformations
    (Springer, 2014-05-22) ; ; ;
    Tremblay, Monica Chiarini
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    VanderMeer, Debra
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    Rothenberger, Marcus
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    Gupta, Ashish
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    Yoon, Victoria
    Enterprises from time to time have to go through radical changes, oftentimes referred to as enterprise transformations (ETs). Depending on the type of ET that is conducted, different information requirements exist. In order to support ETs, a reference information model should therefore distinguish different ET types. Based on the empirical analysis of ETs that is used to determine four ET types with different information requirements, we construct such a reference model in the paper at hand. The application of the model is exemplified with the case of enterprise architecture management as an information provider.
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    Scopus© Citations 7
  • Publication
    Visualizing and Measuring Enterprise Application Architecture: An Exploratory Telecom Case
    (IEEE, 2014-01-04)
    Lagerstroem, Robert
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    Baldwin, Carliss Y.
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    MacCormack, Alan D.
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    We test a method for visualizing and measuring enterprise application architectures. The method was designed and previously used to reveal the hidden internal architectural structure of software applications. The focus of this paper is to test if it can also uncover new facts about the applications and their relationships in an enterprise architecture, i.e., if the method can reveal the hidden external structure between software applications. Our test uses data from a large international telecom company. In total, we analyzed 103 applications and 243 dependencies. Results show that the enterprise application structure can be classified as a core-periphery architecture with a propagation cost of 25%, core size of 34%, and architecture flow through of 64%. These findings suggest that the method could be effective in uncovering the hidden structure of an enterprise application architecture.
    Scopus© Citations 19
  • Publication
    Understanding Coordination Support of Enterprise Architecture Management - Empirical Analysis and Implications for Practice
    (Association for Information Systems, 2013-08-15) ; ; ;
    Enterprise architecture management (EAM) is a means to guide the consistent evolution of business and IT artifacts from an enterprise-wide perspective. This paper aims at understanding the means by which EAM supports this coordination task. Informed by theory of coordination and based on empirical data (n=95) we group participating enterprises in different clusters: (1) non-coordinators, (2) dominators and (3) negotiators. We find that a similar awareness of opportunities exists in all three clusters, yet there are gaps in the realization of EAM coordination support: non-coordinators show the lowest realization, negotiators the highest. Based on this clustering and two follow-up focus groups, we provide implications about the occurrence of the clusters in enterprises and on further EAM development options.