Auflistung nach Autor:in "Gleichauf, Bettina"
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- 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.
- KonferenzbeitragA survival analysis of application life spans based on enterprise architecture models(Enterprise modelling and information systems architectures, 2009) Aier, Stephan; Buckl, Sabine; Franke, Ulrik; Gleichauf, Bettina; Johnson, Pontus; Närman, Per; Schweda, Christian M.; Ullberg, JohanModern enterprises face the challenge to survive in an ever changing environment. One commonly accepted means to address this challenge and further enhance survivability is enterprise architecture (EA) management, which provides a holistic model-based approach to business/IT alignment. Thereby, the decisions taken in the context of EA management are based on accurate documentation of IT systems and business processes. The maintenance of such documentation causes high investments for enterprises, especially in the absence of information on the change rates of different systems and processes. In this paper we propose a method for gathering and analyzing such information. The method is used to analyze the life spans of the application portfolio of three companies from different industry sectors. Based on the results of the three case studies implications and limitations of the method are discussed.
- KonferenzbeitragTowards a more integrated EA planning: linking transformation planning with evolutionary change(Enterprise modelling and information systems architectures (EMISA 2011), 2011) Aier, Stephan; Buckl, Sabine; Gleichauf, Bettina; Matthes, Florian; Schweda, Christian M.; Winter, RobertEnterprises are subject to continuous change driven by top-down planned transformation projects as well as by bottom-up initiatives realizing what is called the evolution of the enterprise. Enterprise architecture (EA) planning presents itself as a means for facilitating and controlling this change. Nevertheless, the methods and models of EA planning developed in recent years either have a strong focus on planned (proactive) transformations or on guided (reactive) evolution. In this paper, we outline an EA planning method that accounts for both types of enterprise change by illustrating the interplay of EA planning, requirements, release, and synchronization management. Specifically we focus on the coordination of design activities modeled as intermeshed closed-loop control systems and on an integrated information model describing EA transformation planning.