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EMISAJ Vol. 05 - 2010

https://dl.gi.de/handle/20.500.12116/3440
Auflistung nach:

Auflistung EMISAJ Vol. 05 - 2010 nach Autor:in "Aier, Stephan"

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  • Zeitschriftenartikel
    Application of Enterprise Models for Engineering Enterprise Transformation
    (Enterprise Modelling and Information Systems Architectures - An International Journal: Vol. 5, Nr. 1, 2010) Aier, Stephan; Gleichauf, Bettina
    Enterprise 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.
  • Zeitschriftenartikel
    How to Preserve Agility in Service Oriented Architectures - An Explorative Analysis
    (Enterprise Modelling and Information Systems Architectures - An International Journal: Vol. 5, Nr. 2, 2010) Aier, Stephan; Schelp, Joachim
    Although companies introduced enterprise application integration (EAI) a couple of years ago, the complexity of corporate application landscapes is ever increasing. The current wave of technology being introduced into these application landscapes are service oriented architectures (SOA). Not unlike EAI before the introduction of these technologies is associated with re-use of software components and reaping cost cutting potentials. But when looking at the still increasing complexity of application landscapes following the introduction of SOA, the re-use and cost cutting arguments lead to disappointment. However, SOA offers a great potential to increase corporate agility. In order to gain and preserve corporate agility it is necessary to explicitly manage enterprise architecture. This paper discusses the problems of re-use and cost cutting expectations in SOA and contrasts them with the potentials related to make sustainable contributions to corporate agility. Structures, processes, and instruments to realise these potentials are discussed with reference to a literature review as well as to selected case studies.