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Auflistung nach Autor:in "Johannsen, Florian"

1 - 5 von 5
  • Konferenzbeitrag
    Coupling and process modeling: An analysis at hand of the eEPC
    (Modellierung 2014, 2014) Braunnagel, Daniel; Johannsen, Florian; Leist, Susanne
    Business process modeling is a fundamental aspect in BPM initiatives. Being a central means of communication and documentation, both the quality and understandability of process models are decisive. However, the concept of process model quality is still not fully understood. The recent development has highlighted the role of coupling in models. Coupling is expected to represent an important dimension of quality for conceptual models. Still, contrary to software engineering, this perspective is hardly understood or adapted in form of metrics in process modeling. Therefore, this work collects diverse coupling metrics in the field of software engineering and transfers them to the eEPC modeling language. Once introduced and formally specified, the metrics serve for a discussion on coupling, process model quality with respect to coupling, and for their implementation.
  • Zeitschriftenartikel
    Das Dekompositionsmodell nach Wand und Weber im Kontext der Prozessmodellierung
    (Wirtschaftsinformatik: Vol. 54, No. 5, 2012) Johannsen, Florian; Leist, Susanne
    Obwohl die Vorteile der Dekomposition bei der Prozessmodellierung hinlänglich bekannt sind, ist nach wie vor unklar, durch welche Eigenschaften sich eine „gute“ Zerlegung eines Prozessmodells auszeichnet. In der Literatur wird die Dekomposition meist pragmatisch interpretiert, wobei ein strukturiertes Vorgehen fehlt. Aus diesem Grund zieht die vorliegende Arbeit das Dekompositionsmodell nach Wand und Weber heran und spezifiziert dieses für die Geschäftsprozessmodellierung. Dabei gilt es, zunächst zu hinterfragen, inwiefern das Dekompositionsmodell überhaupt auf die Prozessmodellierung übertragen werden kann. In der Literatur finden sich bisher keine entsprechenden Untersuchungen, auch wenn dieser Ansatz in mehreren Publikationen als sehr vielversprechend eingeschätzt wird. Mit vorliegender Arbeit wird ein Beitrag geleistet, diese Lücke zu schließen. Langfristig wird die Entwicklung von Handlungsanweisungen angestrebt, welche den Anwender bei der zielgerichteten Dekomposition von Prozessmodellen unterstützen.AbstractWhereas the benefits of decomposing process models are obvious, the question what actually characterizes a “good” decomposition of a business process model has been given little attention to date. In addition, the process of decomposition itself is considered as being an “art” in literature. Our approach for achieving a “good” decomposition is Wand and Weber’s decomposition model for information systems. As a first step in our investigation we aim to explore in how far the decomposition model can be adapted for business process modelling at all. The potential this model might bear for evaluating decompositions of process models has been promoted in literature quite often, while a corresponding investigation is still missing. We address this gap by the following research. In the long term, we intend to establish guidelines for decomposing business process models in a structured way.
  • Zeitschriftenartikel
    Meta Modeling for Business Process Improvement
    (Business & Information Systems Engineering: Vol. 59, No. 4, 2017) Johannsen, Florian; Fill, Hans-Georg
    Conducting business process improvement (BPI) initiatives is a topic of high priority for today’s companies. However, performing BPI projects has become challenging. This is due to rapidly changing customer requirements and an increase of inter-organizational business processes, which need to be considered from an end-to-end perspective. In addition, traditional BPI approaches are more and more perceived as overly complex and too resource-consuming in practice. Against this background, the paper proposes a BPI roadmap, which is an approach for systematically performing BPI projects and serves practitioners’ needs for manageable BPI methods. Based on this BPI roadmap, a domain-specific conceptual modeling method (DSMM) has been developed. The DSMM supports the efficient documentation and communication of the results that emerge during the application of the roadmap. Thus, conceptual modeling acts as a means for purposefully codifying the outcomes of a BPI project. Furthermore, a corresponding software prototype has been implemented using a meta modeling platform to assess the technical feasibility of the approach. Finally, the usability of the prototype has been empirically evaluated.
  • Konferenzbeitrag
    Reflecting modeling languages regarding Wand and Weber's decomposition model
    (Modellierung 2012, 2012) Johannsen, Florian; Leist, Susanne
    The benefits of decomposing process models are widely recognized in literature. Nevertheless, the question of what actually constitutes a “good” decomposition of a business process model has not yet been dealt with in detail. Our starting point for obtaining a “good” decomposition is Wand and Weber's decomposition model for information systems which is specified for business process modeling. In the investigation at hand, we aim to explore in how far modeling languages support the user in fulfilling the decomposition conditions according to Wand and Weber. An important result of the investigation is that all investigated business process modeling languages (BPMN, eEPC, UML AD) can meet most of the requirements.
  • Zeitschriftenartikel
    Tool-based Codification in Business Process Improvement and the Impact on Problem-Solving
    (Enterprise Modelling and Information Systems Architectures (EMISAJ) – International Journal of Conceptual Modeling: Vol. 15, Nr. 1, 2023) Johannsen, Florian; Mang, Fabian; Hans-Georg, Fill; Hofmann, Sara
    Business process improvement (BPI) is an important task in times of quickly changing customer requirements and evolving technologies. A variety of BPI approaches were developed in recent years, however, the proper codification of results created in BPI projects has not been properly investigated yet. In this respect, the paper at hand examines the impact of tool-based codification approaches on problem-solving in BPI. Moreover, the effect of the design either as a spreadsheet-based or a conceptual model-based tool on user satisfaction is analyzed. For that purpose, we revert to two tools we developed, which both offer the identical functionality but diverge in the techniques of codifying results: spreadsheet templates on the one side and conceptual models on the other side. In our study, the form of codification tremendously affected the perceived user satisfaction whereas the results received for problem-solving did not show a clear preference. Regarding the former issue, the beneficial role of conceptual models for codifying results with the help of software tools could be demonstrated.