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P190 - EMISA 2011 - Enterprise Modelling and Information Systems Architectures

https://dl.gi.de/handle/20.500.12116/21076
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Auflistung P190 - EMISA 2011 - Enterprise Modelling and Information Systems Architectures nach Titel

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  • Konferenzbeitrag
    Abstractions in actor and activity modeling
    (Enterprise modelling and information systems architectures (EMISA 2011), 2011) Wester-Ebbinghaus, Matthias; Moldt, Daniel
    In this paper we argue that actor-centered models are well suited for sociotechnical systems of systems (like enterprise and especially cross-enterprise scenarios). Results can especially be drawn from the field of multi-agent system modeling. However, existing approaches reveal a lack of possibilities for switching between different levels of abstraction. This does not only concern more or less abstract models for a given situation (model abstraction), but also to have models with actors of varying granularity, including individual as well as collective actors (actor abstraction). We present a modeling approach that addresses both these aspects. It is based on the core concepts of actors and activities and especially the concept of a collective actor is emphasized. For supporting different levels of model abstraction, we present multiple modeling techniques. The semantic core of all models is based on high-level Petri nets, although this is hidden for the more abstract models.
  • Konferenzbeitrag
    Applying soft systems methodology in enterprise architecture creation workshops
    (Enterprise modelling and information systems architectures (EMISA 2011), 2011) Nakakawa, Agnes; Bommel, Patrick van; Proper, Erik
    Lack of effective involvement of stakeholders is one of the main drawbacks of enterprise architecture initiatives. Ongoing attempts to overcome this involve using Collaboration Engineering to develop a collaboration process that enterprise architects can execute to facilitate collaborative sessions with stakeholders during architecture creation. However, a field study evaluation of this process revealed that it offered inadequate support for stirring vigorous and rigorous discussions during activities that required organizing and assessing problem or solution aspects that resulted from brainstorming activities. Since Soft Systems Methodology (SSM) helps to structure rational thinking about messy situations, its techniques can be adapted to supplement the design of the collaboration process with support for triggering discussions and creating a shared understanding and vision among stakeholders. This paper therefore presents a script that shows how this can be done, and discusses its evaluation in a real case.
  • Konferenzbeitrag
    Assessing process models with cognitive psychology
    (Enterprise modelling and information systems architectures (EMISA 2011), 2011) Zugal, Stefan; Pinggera, Jakob; Weber, Barbara
    The importance of a business process model to be understandable to its reader is widely acknowledged. In this vein, several approaches to assess and improve understandability exist, such as theoretical quality frameworks, modeling guidelines and process model metrics. In this paper we propose to investigate the issue of understandability from the angle of cognitive psychology. To this end, we discuss how the cognitive process of inference acts as a central process of problem solving. In particular, we illustrate in how far chunking, computational offloading and external memory might have an impact on the understandability of process models. Our propositions are theory-based so far and will serve as basis for planned empirical investigations, as discussed in the research agenda.
  • Konferenzbeitrag
    Creative personality and business process redesign
    (Enterprise modelling and information systems architectures (EMISA 2011), 2011) Figl, Kathrin; Weber, Barbara
    The purpose of this article is to discuss the influence of creative personality on process redesign. Building on creativity theories stemming from the field of cognitive psychology, we identify important individual factors during process redesign, and hypothesize their contributions to creative process design using a modelling tool. We present an integrated research model and illustrate how we seek to test the model using the Cheetah Experimental Platform.
  • Konferenzbeitrag
    Designing a risk-based partner selection process for collaborative cloud computing environments
    (Enterprise modelling and information systems architectures (EMISA 2011), 2011) Martens, Benedikt; Zarvic, Novica; Teuteberg, Frank; Thomas, Oliver
    Cloud Computing represents a shift in technology and IT (information technology) service management and it opens up possibilities to build new organizational configurations. As in IT outsourcing, the selection of the right partner/vendor is of crucial importance. Thus, in this article we present a partner selection process for four Cloud Computing Environments: public cloud, community cloud, cloud chain and industrial cloud. We included data sensitivity and the risk attitude of the decision maker as major decision factors for partner selection. The constructed IT artifact (i.e. partner selection process) is evaluated by means of a conceptual evaluation (expert interviews) that demonstrates the applicability of the selection process.
  • Konferenzbeitrag
    Developing a cloud provider selection model
    (Enterprise modelling and information systems architectures (EMISA 2011), 2011) Repschläger, Jonas; Wind, Stefan; Zarnekow, Rüdiger; Turowski, Klaus
    Recently, a growing development and use of Cloud computing services has been observed. Especially modeling cross-organizational cooperation and the respective provider comparison are gaining importance. Despite initial positive results, it is challenging in theory and practice to find an appropriate provider matching the individual requirements. Moreover, the comparison process is complicated by a number of new entrants as well as offers of non-transparent services, which sometimes differ significantly. Due to the lack of adequate possibilities to compare and classify Cloud providers we are presenting in this paper a provider independent classification model for Infrastructure as a Service (IaaS). For this purpose, the target dimensions for Cloud Computing from a customer perspective were defined, based on expert interviews, an international literature review and a Cloud provider market (IaaS and hosting) analysis.
  • Konferenzbeitrag
    Enriched service descriptions using business process configurations
    (Enterprise modelling and information systems architectures (EMISA 2011), 2011) AbuJarour, Mohammed; Awad, Ahmed
    Service descriptions play a crucial role in Service-oriented Computing (SOC), e.g., for service discovery, service selection, service composition, etc. However, it has been observed that service providers – the main source of service descriptions - typically release poor service descriptions, i.e., mostly technical-oriented descriptions. Several approaches have been proposed to tackle this problem by enriching poor service descriptions with additional information from other sources, e.g., communities or domain experts. In this work, we propose a novel approach to generate additional information about web services based on the configurations of their consuming business processes. For instance, we can extract annotations and context information for web services based on the configurations of their consuming business processes. In this paper, we introduce our proposed approach and its architecture based on the open-source online modeling platform Oryx and our public service registry Depot.
  • Konferenzbeitrag
    Enterprise architecture as an instrument of strategic control
    (Enterprise modelling and information systems architectures (EMISA 2011), 2011) Hartmann, Beate
    Enterprises compete in high dynamic and fast changing markets. Reacting quickly and flexibly to market changes is a crucial competitive advantage for an enterprise. Therefor premises of strategic planning and achievement of strategic goals have to be controlled permanently and in a systematic way. Strategic control which is part of strategic management monitors premises of the corporate strategy and the environment of the enterprise in order to evaluate whether the strategic positioning is still appropriate or whether the strategy has to be adopted due to changes in constraints. This paper shows how the enterprise architecture of an enterprise can be used as an instrument of strategic control. Strategic control is characterized by a high demand on information. Hence one needs to know where needed information is to gather. Enterprise architecture which is enriched by results and information of strategic management process is a helpful instrument in delivering information respectively the source of gathering information used in strategic control. In particular for each enterprise architecture layer a proposal is given how strategic control can be supported.
  • Editiertes Buch
  • Konferenzbeitrag
    Eye tracking experiments in business process modeling: agenda setting and proof of concept
    (Enterprise modelling and information systems architectures (EMISA 2011), 2011) Hogrebe, Frank; Gehrke, Nick; Nüttgens, Markus
    For almost all applications there is a need to judge business process models by userś perspective. This paper presents first facts and findings how the eye tracking method can contribute to a deeper empirical understanding and evaluation of user satisfaction in business process modeling. The method of eye tracking is used in order to check subjective perceptions of users through objective measurement. The experimental investigation is done using two variants of the widespread business process modelling notation “Event-driven Process Chain (EPC)”.