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P234 - EMISA 2014 - Enterprise Modelling and Information Systems Architectures

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  • Konferenzbeitrag
    Towards schema evolution in object-aware process management systems
    (Enterprise modelling and information systems architectures - EMISA 2014, 2014) Chiao, Carolina Ming; Kuenzle, Vera; Reichert, Manfred
    Enterprises want to improve the lifecycle support for their businesses processes by modeling, enacting and monitoring them based on process management systems (PrMS). Since business processes tend to change over time, process evolution support is needed. While process evolution is well understood in traditional activitycentric PrMS, it has been neglected in object-aware PrMS so far. Due to the tight integration of processes and data, in particular, changes of the data and process schemes must be handled in an integrated way; i.e., the evolution of the data schema might affect the process schema and vice versa. This paper presents our overall vision on the controlled evolution of object-aware processes. Further, it discusses fundamental requirements for enabling the evolution of object-aware process schemas in PHILharmonicFlows, a framework targeting at comprehensive support of object-aware processes.
  • Konferenzbeitrag
    On the usability of business process modelling tools - a review and future research directions
    (Enterprise modelling and information systems architectures - EMISA 2014, 2014) Shitkova, Maria
    The choice of a business process modelling (BPM) tool in combination with the selection of a modelling language is one of the crucial steps in BPM project preparation. Different aspects influence the decision: tool functionality, price, modelling language support, etc. In this paper we discuss the aspect of usability, which has already been recognized as an important topic in software engineering and web design. We conduct a literature review to find out the current state of research on the usability in the BPM field. The results of the literature review show, that although a number of research papers mention the importance of usability for BPM tools, real usability evaluation studies have rarely been undertaken. Based on the results of the literature analysis, the possible research directions in the field of usability of BPM tools are suggested.
  • Konferenzbeitrag
    Business process as a service - status and architecture
    (Enterprise modelling and information systems architectures - EMISA 2014, 2014) Barton, Thomas; Seel, Christian
    A Cloud Service is usually classified as Infrastructure as a Service, Platform as a Service or Software as a Service. This classification ist not sufficient, when Business Processes are considered. Therefore, Business Process as a Service (BPaaS) as next level of abstraction is in discussion. BPaaS is already an important topic for analysts and cloud providers. In the scientific community a discussion about BPaaS has been started. This contribution presents a literature analysis of the current state-of-the-art in BPaaS. In order to investigate how a Business Process can be built on top of a cloud service, a prototpye of an external application is presented, which is built on top of a cloud service using a RESTful API. For the realization of BPaaS existing architectures for cloud computing are discussed. A proposal for an advanced Architecture for Business Process as a Service is presented. Based on these findings, a brief outlook on future research questions concerning Business Process as a Service is derived.
  • Konferenzbeitrag
    Choosing an adequate level of detail in business process modelling
    (Enterprise modelling and information systems architectures - EMISA 2014, 2014) Nissen, Volker; Heyn, Christian; Termer, Frank
    It is a basic matter of business process modelling to determine an adequate level of model detail, a problem which also can be derived from the guidelines of modelling by Becker et al. [BRU00]. In literature, only few recommendations how to solve this problem can be found. In addition they are quite unspecific and have gaps. In this paper, we investigate which measurable factors influence the adequate detail level, and on this basis make proposals for guidelines how it can be determined in a specific application situation.
  • Konferenzbeitrag
    Towards an analysis driven approach for adapting enterprise architecture languages
    (Enterprise modelling and information systems architectures - EMISA 2014, 2014) Kinderen, Sybren De; Ma, Qin
    Enterprise Architecture (EA) modeling languages are increasingly used for various enterprise wide analyses. In most cases one needs to adapt EA languages to an appropriate level of detail. However such an adaptation is not straightforward. Language engineers currently deal with analysis driven language adaptation in an ad-hoc manner, adapting languages from scratch. This introduces various problems, such as a tendency to add uninteresting and/or unnecessary details to languages, while important enterprise details are not documented. Moreover, adding detail increases the complexity of languages, which in turn inhibits a language's communication capabilities. Yet experience from practice shows that architects often are communicators, next to analysts. As a result, one needs to find a balance between a model's communication and analysis capabilities. In this position paper we argue for an approach for assisting language engineers in adapting, in a controlled manner, EA languages for model-driven enterprise analyses. Furthermore, we present the key ingredients of such an approach, and use these as a starting point for a research outlook.
  • Konferenzbeitrag
    On the role of process models in risk and disaster information management
    (Enterprise modelling and information systems architectures - EMISA 2014, 2014) Kremers, Horst
  • Konferenzbeitrag
    Flexibility and evolution in process-aware information systems: all problems solved ?
    (Enterprise modelling and information systems architectures - EMISA 2014, 2014) Rinderle-Ma, Stefanie
  • Konferenzbeitrag
    Outlining a graphical model query approach based on graph matching
    (Enterprise modelling and information systems architectures - EMISA 2014, 2014) Breuker, Dominic; Dietrich, Hanns-Alexander; Steinhorst, Matthias; Delfmann, Patrick
    This paper outlines a graphical model query approach based on graph matching. It consists of a graphical query specification language and a matching algorithm based on graph matching that takes the query as input and returns all matches found in a model to be searched. The graphical query specification language can be used to draw model queries much like a model would be constructed. To achieve applicability in many different model analysis scenarios, the query approach provides structurally exact and structurally similar pattern matching as well as semantic comparison of model node and edge contents. Following a design science research process, we derive functional requirements for the query language and matching algorithm from the literature, outline its syntax, formally specify its matching principle, and demonstrate its functionality by providing a working prototype implementing previously identified requirements.
  • Konferenzbeitrag
    Designing and implementing a framework for event-based predictive modelling of business processes
    (Enterprise modelling and information systems architectures - EMISA 2014, 2014) Becker, Jörg; Breuker, Dominic; Delfmann, Patrick; Matzner, Martin
    Applying predictive modelling techniques to event data collected during business process execution is receiving increasing attention in the literature. In this paper, we present a framework supporting real-time prediction for business processes. After fitting a probabilistic model to historical event data, the framework can predict how running process instances will behave in the near future, based on the behaviour seen so far. The probabilistic modelling approach is carefully designed to deliver comprehensible results that can be visualized. Thus, domain experts can judge the predictive models by comparing the visualizations to their experience. Model analysis techniques can be applied if visualizations are too complex to be understood entirely. We evaluate the framework's predictive modelling component on real-world data and demonstrate how the visualization and analysis techniques can be applied.