- KonferenzbeitragOntology-Based Assistance for Semi-Formal Process Modeling(Enterprise Modelling and Information Systems Architectures (EMISA 2013), 2013) Fellmann, Michael; Zarvic, Novica; Sudau, Annelene; Jung, Reinhard; Reichert, ManfredThe construction of semi-formal process models is a difficult task due to the complexity of today's business processes. In this contribution, we devise an ontology-based assistant for semi-formal process modeling. The assistant is intended to support the modeler in creating high quality process models with less time and effort by reusing knowledge captured in a reference ontology. At first, we derive functionalities for such an assistant. We then show how the approach can be implemented and integrated into an existing modeling tool. Finally, we describe an experimental evaluation of the approach.
- KonferenzbeitragTowards Auto-Suggested Process Modeling – Prototypical Development of an Auto-Suggest Component for Process Modeling Tools(Enterprise Modelling and Information Systems Architectures (EMISA 2013), 2013) Clever, Nico; Holler, Justus; Shitkova, Maria; Becker, Jörg; Jung, Reinhard; Reichert, ManfredCompanies have accepted process modeling as a powerful instrument for business reorganization, requirements specification in software development, knowledge management and other activities. Huge amounts of processes are being modeled in organizations nowadays. However, the re-use of existing process knowledge in order to simplify the modeling process has not yet been thoroughly studied and applied. We propose an auto-suggest component for process modeling tools, which, based on existing process knowledge, “auto-suggests” the process model elements step-by-step, thus saving the modeler time and effort.
- KonferenzbeitragDo We Need a Standard for EPC Modelling? The State of Syntactic, Semantic and Pragmatic Quality(Enterprise Modelling and Information Systems Architectures (EMISA 2013), 2013) Fellmann, Michael; Bittmann, Sebastian; Karhof, Arne; Stolze, Carl; Thomas, Oliver; Jung, Reinhard; Reichert, ManfredThe quality determination of business process models is a complex and demanding task. In literature, a plethora of different quality criteria can be identified and are respectively used by practitioners. The selection of quality criteria depends on the one hand on the respective preferences of the individual modeller. On the other hand, it is prescribed by the modelling language in use, as it has embodied specific criteria e.g. based on its syntax. For the widespread EPC, no comprehensive overview of existing aspects for the evaluation of an EPC model's syntactic, semantic and pragmatic quality exists. With this investigation, we present such an overview and put the identified aspects into a holistic perspective based on the identified and relevant literature.
- KonferenzbeitragSecSy: Synthesizing Process Event Logs(Enterprise Modelling and Information Systems Architectures (EMISA 2013), 2013) Accorsi, Rafael; Stocker, Thomas; Jung, Reinhard; Reichert, ManfredOne difficulty at developing mechanisms for business process security monitoring and auditing is the lack of representative, controllably generated test runs to serve as an evaluation basis. This paper presents an approach and the corresponding tool support for event log synthesis. The novelty is that it considers the activity of an “attacker” able to purposefully infringe security and compliance requirements or simply manipulate the process' control and data flow, thereby creating deviations of the intended process model. The resulting logs can be readily replayed on a reference monitor, or serve as input for auditing tools based upon, e.g., process mining.
- KonferenzbeitragTowards a Modelling Method in Support of Evaluating Information Systems Integration(Enterprise Modelling and Information Systems Architectures (EMISA 2013), 2013) Kattenstroth, Heiko; Frank, Ulrich; Heise, David; Jung, Reinhard; Reichert, ManfredIT organisations face a number of challenges when assessing, realising, and maintaining a level of integration-between IT resources and between IT and business-that is satisfactory. To cope with these challenges, methods are required that support the evaluation of information systems integration by reducing the complexity inherent to the IT of today's enterprises, by facilitating communication about integration matters among groups of stakeholders with differing perspectives, and by accounting for potential ambivalent effects of integration. In this paper, we investigate the potentials of an enterprise modelling-based method for IS integration evaluation and present initial conceptualisations-with a specific focus on data integration.
- KonferenzbeitragCognitive Efficient Modelling Using Tablets(Enterprise Modelling and Information Systems Architectures (EMISA 2013), 2013) Stark, Jeannette; Burwitz, Martin; Braun, Richard; Esswein, Werner; Jung, Reinhard; Reichert, ManfredRecently, conceptual modellers have to choose between modeling tools running on tablets or in a common PC environment. This choice has some implications on how cognitive efficient the modeling process is. While using touch input (given on a tablet) eyes and hand are directly coordinated, which supports human gaze behaviour. On the contrary, modelling with a mouse (given in a common PC environment) does not allow direct eye-hand coordination and therefore needs additional effort to coordinate eye and hand. This effect is investigated within a two-group laboratory experiment using BPMN as a modeling language and thus assesses if modeling on tablet is cognitive efficient. Furthermore, we derive assumptions how improve cognitive efficiency of modeling tools.
- KonferenzbeitragCan boundary objects mitigate communication defects in enterprise transformation? Findings from expert interviews(Enterprise Modelling and Information Systems Architectures (EMISA 2013), 2013) Abraham, Ralf; Niemietz, Hella; Kinderen, Sybren de; Aier, Stephan; Jung, Reinhard; Reichert, ManfredInappropriate communication is a major threat to enterprise transformations. While enterprise architecture (EA) models may be helpful to support communication, these models are often tailored to the needs of specialists like enterprise architects. Based on empirical data from 12 expert interviews, we analyze how EA models can become boundary objects that span knowledge boundaries and alleviate communication defects among heterogeneous stakeholder groups in enterprise transformations. We contribute a framework that maps six communication defects to three knowledge boundaries and to 12 boundary object properties as a foundation for future EA model design. Our findings also indicate that EA models alone are not sufficient for overcoming communication defects, but that facilitators like architects are needed in addition.
- KonferenzbeitragA hybrid OLAP & OLTP Architecture Using Non-Relational Data Components(Enterprise Modelling and Information Systems Architectures (EMISA 2013), 2013) Benker, Thomas; Jung, Reinhard; Reichert, ManfredRelational database systems are still the first choice for the realization of business application systems. They are used as operational databases to persist business process data or as the basis for data warehouse systems. In recent years, the NoSQL-movement proposed a number of new non-relational data stores because of changing requirements of Web 2.0 applications and related limitations of relational systems. We argue that these new systems can also be used in OLTP- and right-time OLAP-scenarios. We demonstrate how enterprise application systems can be realized based on concepts of the NoSQL-movement. We propose an architecture that enables the deployment of an appropriate data model to a certain business domain and the integration of OLTP- and OLAP-functionality. Components of the architecture are suited to enhance business data with analysisrelevant information and to perform analysis tasks. To demonstrate the application of the architecture and its analytic features, we introduce a short case study.
- Editiertes BuchEnterprise Modelling and Information Systems Architectures (EMISA 2013)(2013) Jung, Reinhard; Reichert, Manfred
- KonferenzbeitragBPMN 2.0 Serialization - Standard Compliance Issues and Evaluation of Modeling Tools(Enterprise Modelling and Information Systems Architectures (EMISA 2013), 2013) Geiger, Matthias; Wirtz, Guido; Jung, Reinhard; Reichert, ManfredBusiness Process Model and Notation (BPMN) 2.0 process models are used more and more, both in practice as in academia. Although academic research mainly focuses on sophisticated semantic checks and extensions there still exist problems in the basic usage of BPMN. This paper investigates issues in BPMN model serializations which arise as a result of the complexity and inconsistency of the standard document. We present a set of serialization constraints as a starting point for sophisticated compliance checks on serialized BPMN models. Furthermore, these constraints are used to perform an evaluation of current modeling tools. This evaluation reveals that the creation of standard compliant models is still a non-trivial endeavor.