P190 - EMISA 2011 - Enterprise Modelling and Information Systems Architectures
Auflistung P190 - EMISA 2011 - Enterprise Modelling and Information Systems Architectures nach Erscheinungsdatum
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- KonferenzbeitragEye 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, MarkusFor 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)”.
- KonferenzbeitragAssessing process models with cognitive psychology(Enterprise modelling and information systems architectures (EMISA 2011), 2011) Zugal, Stefan; Pinggera, Jakob; Weber, BarbaraThe 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.
- KonferenzbeitragIntegration of process constraints from heterogeneous sources in process-aware information systems(Enterprise modelling and information systems architectures (EMISA 2011), 2011) Rinderle-Ma, Stefanie; Mangler, JuergenBusiness Process Compliance (BPC) has gained significant momentum in research and practice during the last years. Although many approaches address BPC, they mostly assume the existence of some kind of unified base of process constraints and focus on their verification over the business processes. However, it remains unclear how such an integrated process constraint base can be built up, particularly at the presence of process constraints stemming from heterogeneous sources such as internal controls, external contracts, or security and privacy policies. Hence in this paper, we propose a representation framework for the integration of process constraints stemming from different sources. The representation framework is generic such that existing formalisms to represent process constraints can be integrated. The framework is illustrated by means of real-world process constraints from different domains and heterogeneous sources. Altogether process constraint integration enables consistency checks and optimizations as well as maintenance and evolution of the constraint base.
- KonferenzbeitragWorkflow nets with roles(Enterprise modelling and information systems architectures (EMISA 2011), 2011) Bergenthum, Robin; Desel, Jörg; Mauser, SebastianWe formalize the usual static role concept for workflow nets, introduce dynamic roles and define soundness as well as a second correctness criterion, called consistency, for workflow nets with roles. We study the relation between the notions of consistency and soundness of workflow nets with and without roles. In particular, we show that a sound workflow net extended by consistent roles is again sound.
- KonferenzbeitragSystem architecture validation with UML(Enterprise modelling and information systems architectures (EMISA 2011), 2011) Pflüger, André; Golubski, Wolfgang; Queins, StefanThe foundation of every system is the architecture. It has to be designed according to the corresponding system requirements by the system architect who is also responsible for ensuring that it fits to the system requirements even if these change due to new conditions during development process. Our approach defines a model driven process for the architect to validate system architecture against system requirements based on UML. It supports the architect in designing the architecture and in analysing the impacts of requirements changes.
- KonferenzbeitragAbstractions in actor and activity modeling(Enterprise modelling and information systems architectures (EMISA 2011), 2011) Wester-Ebbinghaus, Matthias; Moldt, DanielIn 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.
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- KonferenzbeitragFast pattern matching in conceptual models – evaluating and extending a generic approach(Enterprise modelling and information systems architectures (EMISA 2011), 2011) Dietrich, Hanns-Alexander; Steinhorst, Matthias; Becker, Jörg; Delfmann, PatrickIdentifying structural patterns in conceptual models serves a variety of purposes ranging from model comparison to model integration and exploration. Although there are a multitude of different approaches for particular modelling languages and application scenarios, the modelling community lacks an integrated approach suitable for conceptual models of arbitrary languages and domains. Therefore, a generic set-theory based pattern matching approach has recently been developed. To prove that this approach is beneficial in terms of performance, we conduct a statistically rigorous analysis of its runtime behaviour. We augment the original approach to include a caching mechanism that further increases performance. We are able to show that the original algorithm is able to identify arbitrary patterns within milliseconds. The caching extension further increases performance by up to fifty per cent given the model base and patterns we used.
- KonferenzbeitragTool support for the comprehensive modeling of quality information within business process models(Enterprise modelling and information systems architectures (EMISA 2011), 2011) Heinrich, Robert; Kappe, Alexander; Paech, BarbaraBusiness process modeling is commonly used to document information about structure and behavior of a business process. However, current business process modeling notations do not support well the expression of quality information relating to business processes. Organizations are interested in the capturing of quality information for quality improvement of business processes and supporting IT systems. We are developing an approach to capture quality information comprehensively within business process models. In contrast to existing approaches, our notation allows the capturing of a broad range of quality characteristics as well as detailed attributes and measures. The approach is implemented as an extension of a CASE tool. Moreover, we discuss lessons learned from the application of the approach to a business process from practice.
- KonferenzbeitragA reference architecture for semantic content management systems(Enterprise modelling and information systems architectures (EMISA 2011), 2011) Christ, Fabian; Nagel, BenjaminContent Management Systems (CMS) lack the ability of managing semantic information that is part of the content stored in a CMS. On the other hand, a lot of research has been done in the field of Information Extraction (IE) and Information Retrieval (IR), respectively. Additionally, the vision of the Semantic Web yields to new software components that make semantic technology usable for application developers. In this paper, we combine IE/IR concepts with the technologies of the Semantic Web and propose a new family of CMS, called Semantic CMS (SCMS), with advanced semantic capabilities. We provide a reference architecture for SCMS and prove its value along two implementations. One implementation was created as part of the Interactive Knowledge Stack research project and another one in a one-year student project exploring the design of an SCMS for the software engineering domain.
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