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Auflistung nach Autor:in "Pfeiffer, Daniel"

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  • Zeitschriftenartikel
  • Zeitschriftenartikel
    Bausteinbasierte Modellierung von Prozesslandschaften mit der PICTURE-Methode am Beispiel der Universitätsverwaltung Münster
    (Wirtschaftsinformatik: Vol. 49, No. 4, 2007) Becker, Jörg; Algermissen, Lars; Pfeiffer, Daniel; Räckers, Michael
    KernpunkteDie Prozesslandschaft als Menge aller in einer Organisation ausgeführten Geschäftsprozesse ist das neue Handlungsfeld der Prozessgestaltung in öffentlichen Verwaltungen. Zur Modellierung und Analyse einer Prozesslandschaft ist ein neuer methodischer Ansatz erforderlich:Die PICTURE-Methode dient zur modellierung der Prozesslandschaft. Sie besteht aus 24 domänenspezifischen Prozessbausteinen mit festem Abstraktionsniveau, die durch Attribute näher spezifiziert und zu einzelnen Prozessen zusammengesetzt werden können.Mit der PICTURE-Methode lässt sich die Prozesslandschaft deutlich effizienter modellieren, als dies klassische Modellierungsmethoden leisten können.Die PICTURE-Methode wurde im Praxiseinsatz in einem Modellierungsprojekt der Universität Münster evaluiert und hat die an sie gestellten Anforderungen erfüllt.AbstractPublic administrations face a strong pressure to reorganise caused by decreasing financial resources, a changing political environment, and increased customer demand.A process oriented visualisation, analysis and improvement of administrational processes is a key prerequisite for the successful organisational and technical change of public administrations within the current reorganisation activities.In order to successfully conduct reorganisation projects a coherent view on all administrational processes (the process landscape) and their interdependencies is of great value as a starting point.Common approaches to collect and visualise processes lead to such complex models that only a small percentage of the overall process landscape can be examined.The PICTURE-method as the core of this paper surpasses weaknesses of classical approaches and allows for a very efficient means of modelling the process landscape by using 24 domain specific reusable process building blocks. Hence by applying the PICTURE-method one can create a high degree of transparency as a base for reorganisation projects.In this paper we conceptually introduce the PICTURE-method and describe its practical application in a large modelling project within the administration of the University of Münster. We describe the experiences made by applying PICTURE and evaluate the method in terms of the requirements made by the project contractor.
  • Konferenzbeitrag
    Evolutionary Method Engineering – A Case Study in Meta Modeling
    (Meta-modelling and ontologies – Proceedings of the 2nd Workshop on Meta-Modelling – WoMM 2006, 2006) Becker, Jörg; Seidel, Stefan; Pfeiffer, Daniel; Janiesch, Christian
    Meta modeling is a widely established means for developing conceptual modeling methods (CMM). Here, we show how a CMM for the structured conceptual design of management information systems has been developed in an evolutionary process based on meta modeling. The aim of management information systems is to satisfy the information need managers have to successfully accomplish their tasks. The quality of management decisions is highly dependent on the information they are based on. A structured conceptual design of management information systems is a crucial task that has to precede their implementation and monitoring. Several conceptual modeling methods have been developed in order to support the specification of data warehouse structures and management information systems. However, none of them was found to be appropriate to bridge the communication gap in the process of requirements analysis. Thus, in an ongoing research effort, a CMM has been designed to adequately support the conceptual design of management information systems. Several case studies were conducted and in an iterative process the findings were incorporated to improve the initial CMM. The result of this process is a CMM quite different to the original one. The aim of this paper is to elaborate on the evolutionary development of a CMM using meta modeling and to show how it has successfully been applied in multiple case studies.
  • Konferenzbeitrag
    A framework for comparing conceptual models
    (Enterprise modelling and information systems architectures, 2005) Pfeiffer, Daniel; Gehlert, Andreas
    Conceptual models are a widely used mean for documenting software systems as well as describing organisational structures. The trend towards integrated and flexible information systems has encouraged research about the comparison of conceptual models. Current approaches on the identification of similarities between conceptual models often adopt an automation perspective only. In this paper we will unfold severe arguments that a fully automatic model comparison process is not feasible. Furthermore, we will show that only a semiautomatic process can perform the comparison of conceptual models at the semantic level. On this theoretical basis, we will develop a framework which identifies all necessary and sufficient components for comparing conceptual models. We will show that this framework includes all the requirements that a semi-automatic model comparison process must meet.
  • Zeitschriftenartikel
    Semantic-Web-Technologien in der Arbeitsplatzvermittlung
    (Informatik-Spektrum: Vol. 29, No. 3, 2006) Falk, Thorsten; Heese, Ralf; Kaspar, Christian; Mochol, Malgorzata; Pfeiffer, Daniel; Thygs, Michael; Tolksdorf, Robert
    The importance of the Internet for job procurement is increasing for the reason that three quarters of the people in the employment age are online. On the other hand because ever more companies are publishing their job offers on the Web. However, due to the large number of openings published online it is almost impossible for job seekers and job portals to gain an overview of the entire employment market. Since job offers lack semantically meaningful annotations, the search and integration into databases are made highly difficult. Applying Semantic Web technologies to the e-recruitment process provides advantages for all participants in the market. In this paper we describe a method for analysing the domain-specific language of an application domain. We use this method to describe the e-recruitment process and the necessary ontologies for annotating job offers and job applications. In conclusion, we present the prototypical implementation of the scenario based on Semantic Web, especially semantic matching.