Auflistung nach Autor:in "Aier, Stephan"
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- ZeitschriftenartikelA Value Co-creation Perspective on Information Systems Analysis and Design(Business & Information Systems Engineering: Vol. 61, No. 4, 2019) Haki, Kazem; Blaschke, Michael; Aier, Stephan; Winter, RobertInformation systems analysis and design (ISAD) ensures the design of information systems (IS) in line with the requirements of a business environment. Since ISAD approaches follow the currently dominant logic of business, the rise of a new and thriving business logic may require revisiting and advancing extant ISAD approaches and techniques. One of the prevailing debates in marketing research is the paradigmatic shift from a goods-dominant (G-D) to a service-dominant (S-D) logic of business. The cornerstone of this reorientation is the concept of value co-creation emphasizing joint value creation among a variety of actors within a business network. With the aim of introducing value co-creation as a new discourse to ISAD research, this research note argues that (1) the lens of S-D logic with its core concept of value co-creation provides a novel perspective to ISAD. The authors also assert that (2) value co-creation-informed IS design realizes the paradigmatic shift from G-D to S-D logic. Building on this mutual relationship between value co-creation and ISAD, they propose a research agenda and discuss the ISAD artifacts that prospective research may target.
- ZeitschriftenartikelApplication of Enterprise Models for Engineering Enterprise Transformation(Enterprise Modelling and Information Systems Architectures - An International Journal: Vol. 5, Nr. 1, 2010) Aier, Stephan; Gleichauf, BettinaEnterprise models constitute a valuable basis for enterprise transformation because they usually represent a widely accepted image of an enterprise. Practitioners often put a lot of effort in the creation and maintenance of such models that therefore represent a significant investment. However, so far the information contained in enterprise models is to a large extend ‘dateless’ which means it is hardly used to describe the transformation itself consistently. Therefore we propose a method to systematically derive an enterprise transformation model based on existing models representing enterprise structures at different points in time. The result of the method application is a set of project outlines derived from enterprise models. In order to generalise our approach to a multiperiod transformation model capable of coping with dynamic changes and plan deviations we propose a respective conceptual system. Our research artefact (the method) is finally demonstrated in a case study.
- KonferenzbeitragAufbau und Einsatz der Geschäftsarchitektur bei der AXA Winterthur – Ein minimal invasiver Ansatz(Synergien durch Integration und Informationslogistik, 2008) Aier, Stephan; Maletta, Fiorenzo; Riege, Christian; Stucki, Katja; Frank, Andrés
- KonferenzbeitragBeyond Enterprise Architecture Modeling – What are the Essentials to Support Enterprise Transformations?(Enterprise Modelling and Information Systems Architectures (EMISA 2013), 2013) Labusch, Nils; Aier, Stephan; Winter, RobertIn recent years, many different modeling techniques and languages were developed in order to allow for an efficient and appropriate enterprise architecture management (EAM). Recently, EAM is no longer only seen as a means to ensure business/IT alignment but further as a means to support fundamental changes of the organization, often called enterprise transformation (ET). In a joint project with a group of practitioners we aim at developing a framework that provides guidance on how EAM can support such ETs and thus leverage the benefit of modeling. Our design results after more than one year of research reveal different types of EAM, areas of action in ETs and ET activities that can be supported by EAM. The findings show that modeling techniques or languages should focus on constructs like transitions, benefits or risks in order to increase their value for ET support.
- KonferenzbeitragCan boundary objects mitigate communication defects in enterprise transformation? Findings from expert interviews(Enterprise Modelling and Information Systems Architectures (EMISA 2013), 2013) Abraham, Ralf; Niemietz, Hella; Kinderen, Sybren de; Aier, StephanInappropriate communication is a major threat to enterprise transformations. While enterprise architecture (EA) models may be helpful to support communication, these models are often tailored to the needs of specialists like enterprise architects. Based on empirical data from 12 expert interviews, we analyze how EA models can become boundary objects that span knowledge boundaries and alleviate communication defects among heterogeneous stakeholder groups in enterprise transformations. We contribute a framework that maps six communication defects to three knowledge boundaries and to 12 boundary object properties as a foundation for future EA model design. Our findings also indicate that EA models alone are not sufficient for overcoming communication defects, but that facilitators like architects are needed in addition.
- ZeitschriftenartikelClassification of Enterprise Architecture Scenarios - An Exploratory Analysis(Enterprise Modelling and Information Systems Architectures - An International Journal: Vol. 3, Nr. 1, 2008) Aier, Stephan; Riege, Christian; Winter, RobertEnterprise architecture (EA) provides a powerful basis to transform an organization and to continually align the organization to external and internal demands. The process of transformation can effectively and efficiently be supported by appropriate EA methods. There is however no "one-size-fits-all" method, which is suitable to support all kinds of transformations in all kinds of organizations. Different project types and different context types require different methods – or at least different configurations or adaptations of a method. Based on an exploratory empirical analysis, we classify three different EA scenarios in this article. The identified EA scenarios can provide the basis for situational EA method engineering.
- ZeitschriftenartikelCrossing the Line: Overcoming Knowledge Boundaries in Enterprise Transformation(Business & Information Systems Engineering: Vol. 57, No. 1, 2015) Abraham, Ralf; Aier, Stephan; Winter, RobertEnterprise transformations are fundamental changes in an organization. Such changes typically affect different stakeholder groups (e.g., program managers, business managers) that exhibit a significant diversity regarding their members’ knowledge, goals, and underlying assumptions. Yet, creating shared understanding among diverse stakeholder groups in transformations is a main antecedent for success. The paper analyzes which properties of enterprise architecture models contribute to syntactic, semantic, and pragmatic capacities which helps to create shared understanding among stakeholder groups involved in enterprise transformation. The differences among stakeholder groups are assessed through the lens of knowledge boundaries, and enterprise architecture models are assessed through the lens of boundary objects. A research model is developed and empirically tested that describes which boundary object properties are required to overcome three progressively complex knowledge boundaries – syntactic, semantic, and pragmatic. The findings show which boundary object properties contribute to a respective capacity needed to overcome each of the three knowledge boundaries. Specifically, the results show that for (1) a syntactic capacity, concrete and modular enterprise architecture (EA) models are helpful; (2) a semantic capacity, visual EA model properties are relevant, and (3) a pragmatic capacity, broad stakeholder participation is conductive.
- KonferenzbeitragDesign und Implementierung integrativer Unternehmensarchitekturen(Informatk 2005. Informatik Live! Band 1, 2005) Aier, Stephan; Schönherr, MartenEin wichtiges Ziel für die Gestaltung komplexer Unternehmensarchitekturen ist die prozessorientierte Integration von IT-Architekturen. Dieses Ziel wird derzeit kaum erreicht. Dies ist u.a. durch die Nichtbeherrschung des Methodenund Technologiesets zu begründen. Dieser Beitrag konzentriert sich auf die technologischen Aspekte. Hier stehen derzeit verschiedene Integrationsansätze (Punkt-zu-Punkt, Hub & Spoke, dezentrale meist dienstorientierte Ansätze) zur Verfügung. Der Beitrag vergleicht die genannten Integrationsarchitekturen basierend auf einer realen szenario-gestützten Implementierung der verschiedenen Ansätze.
- KonferenzbeitragAn engineering approach to enterprise architecture design and its application at a financial service provider(Modellierung betrieblicher Informationssysteme (MobIS 2008), 2008) Aier, Stephan; Kurpjuweit, Stephan; Schmitz, Otto; Schulz, Jörg; Thomas, André; Winter, RobertIn analogy to classical engineering disciplines, this contribution discusses characteristics and requirements of an engineering approach to enterprise architecture design and proposes components and a top-level structure of an approach to address these requirements. The proposed components can partially be realized by existing work; partially they lay out the research path towards a mature engineering discipline of EA design. Core components of the proposed approach have been applied and evaluated at Deutsche Leasing AG, a globally operating financial service provider based in Germany.
- ZeitschriftenartikelEntwicklungsstufen des Unternehmensarchitekturmanagements(HMD Praxis der Wirtschaftsinformatik: Vol. 49, No. 2, 2012) Aier, Stephan; Winter, Robert; Wortmann, FelixenJe nach Ausgestaltung kann Unternehmensarchitekturmanagement (UAM) eine wichtige Komponente des strategischen IT-Managements bilden — oder auch nicht. Um die Ausgestaltungsmöglichkeiten besser zu verstehen, führen wir zunächst UAM-Dimensionen ein und beschreiben auf dieser Grundlage vier zentrale UAM-Entwick-lungsstufen, deren letzte »strategisches UAM« ist. Die vier Entwicklungsstufen ermöglichen dem Leser die Positionierung des jeweils realisierten UAM im eigenen Unternehmen sowie die Definition eines angemessenen Zielzustands. Drei Kurzfallstudien zeigen konkret auf, in welchen Variationen strategisches UAM umgesetzt und in welcher Weise dadurch strategisches Informationsmanagement unterstützt werden kann.
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