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Auflistung nach Autor:in "Neumann, Gustaf"

1 - 6 von 6
  • Konferenzbeitrag
    A comparison of XML interchange formats for business process modelling
    (EMISA 2004 – Informationssysteme im E-Business und E-Government, Beiträge des Workshops der GI-Fachgruppe EMISA (Entwicklungsmethoden für Informationssysteme und deren Anwendung), 2004) Mendling, Jan; Neumann, Gustaf; Nüttgens, Markus
    This paper addresses heterogeneity of business process metamodels and related interchange formats. The different approaches towards interchange format design and effects of interchange format specification are presented first. In particular completeness is identified as an important design criterion for interchange formats. Af- terwards the superset of metamodel concepts is extracted from 15 currently available XML-based specifications for business process modelling. Furthermore, these concepts are used as a framework for comparing the completeness of 15 specifications.
  • Zeitschriftenartikel
    Evolutionäre betriebliche Informationssysteme
    (Wirtschaftsinformatik: Vol. 56, No. 1, 2014) Neumann, Gustaf; Sobernig, Stefan; Aram, Michael
    Der vorliegende Artikel reflektiert bestehende und zukünftige Herausforderungen im Bereich „evolutionärer betrieblicher Informationssysteme“, einer Gattung von Systemen, die einen evolutionären Softwareentwicklungsprozess erfordern und die eine „sekundäre Gestaltung (secondary design)“ auf mehreren konzeptionellen Ebenen unterstützen. Wir verorten sowohl bestehende Forschungsbeiträge und zukünftige Herausforderungen innerhalb einer idealisierten, vorläufigen Systemarchitektur. Schließlich betonen wir unsere pluralistische Sichtweise auf den Forschungsgegenstand und die daraus resultierende Notwendigkeit einer methodologischen Flexibilität im Sinne interdisziplinärer Konfigurationen von Forschungsmethoden.AbstractThis article reflects on existing and emerging future challenges arising in the area of “evolutionary business information systems”, a class of systems that demand an evolutionary software development process and which support secondary design of various conceptual layers. We place both existing contributions and future research opportunities in context by referring to an idealized, preliminary system architecture. Finally, we emphasize our pluralistic perspective on the research object and the resulting need for methodological flexibility in the sense of interdisciplinary configurations of research methods.
  • Konferenzbeitrag
    Extending BPEL4WS for multiple instantiation
    (Informatik 2004, Informatik verbindet, Band 2, Beiträge der 34. Jahrestagung der Gesellschaft für Informatik e.V. (GI), 2004) Mendling, Jan; Strembeck, Mark; Neumann, Gustaf
    A means to define multiple activity instantiation is an important feature of a business process modelling language. In this paper we suggest to extend BPEL4WS with structured activities for multiple instantiation. In particular, we propose to extend BPEL4WS with a collect and a broadcast activity to model multiple instance behavior as well as array data structures to handle messages of multiple parties that act according to the same role.
  • Workshopbeitrag
    Serious Games for Software Refactoring
    (Software Engineering and Software Management 2019, 2019) Haendler, Thorsten; Neumann, Gustaf
    This summary refers to the paper Serious Refactoring Games published as a full research paper in the proceedings of the 52nd Hawaii International Conference on System Sciences (HICSS 2019) [HN19]. Software design issues can severely impede software development and maintenance. Thus, it is important for the success of software projects that developers are aware of bad smells in code artifacts and improve their skills to reduce these issues via refactoring. However, software refactoring is a complex activity and involves multiple tasks and aspects. Therefore, imparting competences for identifying bad smells and refactoring code efficiently is challenging for software engineering education and training. The approaches proposed for teaching software refactoring in recent years mostly concentrate on small and artificial tasks and fall short in terms of higher level competences, such as analysis and evaluation. In this paper, we investigate the possibilities and challenges of designing serious games for software refactoring on real-world code artifacts. In particular, we propose a game design, where students can compete either against a predefined benchmark (technical debt) or against each other. In addition, we describe a lightweight architecture as the technical foundation for the game design that integrates pre-existing analysis tools such as test frameworks and software-quality analyzers. Finally, we provide an exemplary game scenario to illustrate the application of serious games in a learning setting.
  • Konferenzbeitrag
    User Profile Refinement using explicit User Interest Modeling
    (Informatik 2007 – Informatik trifft Logistik – Band 1, 2007) Stermsek, Gerald; Strembeck, Mark; Neumann, Gustaf
    In this paper, we present an approach to refine user profiles that were derived from Web server logs in an automated procedure. In most application scenarios, such automatically derived profiles can only deliver a preliminary result and require human interaction for further refinement. We describe the individual steps to enhance and refine derived user profiles which can be used for personalization purposes (e.g. information filtering). In particular, the user can choose to refine the profile manually or use supporting techniques, such as ontologies, that assist him in the refinement process. In addition to information included in automatically derived profiles, the user thus explicitly provides information to refine his profile.
  • Zeitschriftenartikel
    Yet Another Event-driven Process Chain - Modelling Workflow Patterns with yEPCs
    (Enterprise Modelling and Information Systems Architectures - An International Journal: Vol. 1, Nr. 1, 2005) Mendling, Jan; Neumann, Gustaf; Nüttgens, Markus
    The 20 workflow patterns proposed by van der Aalst et al. provide a comprehensive benchmark for comparing process modelling languages. In this article, we discuss workflow pattern support of Event-Driven Process Chains (EPCs). Building on this analysis, we propose three extensions to EPCs in order to provide for workflow pattern support. These are the introduction of the so-called empty connector; inclusion of multiple instantiation concepts; and a cancellation construct. As both the latter are inspired by YAWL, we refer to this new class of EPCs as Yet Another Event-driven Process Chain (yEPC). Furthermore, we sketch how a transformation to YAWL can be used to specify the semantics of yEPCs.