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Dive into the research topics where Oliver Thomas is active.

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Featured researches published by Oliver Thomas.


business process management | 2005

Understanding the term reference model in information systems research: history, literature analysis and explanation

Oliver Thomas

The heart of every scientific discipline is its own unique, uniform and acknowledged terminology. As an application-oriented mediator between business administration and computer science, information systems research in particular is in need of a theoretical foundation and an instrument capable of translating basic theoretical knowledge into practical applications. Its dependency on and proximity to actual practice, as well as the rapid development of information technology often get in the way of the sound, systematic and consistent formation of concepts. Reference modeling is especially in need of a theoretical foundation. Due to the strong influence of implementation-oriented thought within this field, a gap has resulted between research and practice which has often led to undesirable developments. The high expectations organization and application system developers have on the reutilization of reference models are often disappointed. Apparently, the recommendations made by reference model developers often do not meet the expectations of potential model-users. One reason for this is the non-uniform grasp of the term reference model. This article attempts to counteract this deficiency by way of a detailed analysis of the way the term reference model is used and understood.


Information Systems and E-business Management | 2010

A value-driven approach to the design of service-oriented information systems—making use of conceptual models

Oliver Thomas; Jan vom Brocke

We explain the importance of conceptual models for process design with service-oriented architectures (SOA) and illustrate how these models can be used to evaluate the value of SOA. To do so, a methodology is introduced, which comprises both the configuration and the implementation of processes by services and IT components. The approach presented here, makes it possible to evaluate the monetary and objective potentials of SOA, as well as to enhance SOA implementation by providing guidelines. The requirements analysis from an online-mail order company serves as a case study. The results show that up to now, economic aspects were ascribed too little importance in the SOA discussion.


hawaii international conference on system sciences | 2006

Tool Support for the Collaborative Design of Reference Models — A Business Engineering Perspective

Oliver Thomas; August-Wilhelm Scheer

The central idea in reference modeling is the reutilization of the business knowledge contained in reference models for the construction of specific information models. The orientation on the technical content of a reference model can increase the efficiency of processes in business engineering projects. Despite this, the use of reference models in the field of business engineering has not established itself in practice. This is due to the particular field of conflict between research and practice, in which reference modeling is at home. Thus, there is still a deficit in knowledge about the use and problems inherent in the implementation of reference models despite the array of theoretical concepts. Accordingly, in the past years the supply-sided development of reference models predominant in the science world has distanced itself from their demand-sided use in business and administration. The article at hand analyses this problem and presents an integrative approach to the computer-aided management of reference models. The task to be mastered using the proposed approach will be conceptually concretized with an framework and prototypically implemented in the form of a reference model management system.


Wirtschaftsinformatik und Angewandte Informatik | 2008

Product-Service Systems: Konstruktion und Anwendung einer Entwicklungsmethodik

Oliver Thomas; Philipp Walter; Peter Loos

ZusammenfassungDer Beitrag beschreibt eine Entwicklungsmethodik für Product-Service Systems (PSS). Mit ihrer Hilfe werden zunächst die Eigenschaften eines PSS, die das Verhalten kennzeichnender Sach- und Dienstleistungskomponenten beschreiben, systematisch aus Kundenanforderungen abgeleitet. Aus den PSS-Eigenschaften werden anschließend die Struktur und die strukturbeschreibenden Merkmale des PSS entwickelt. Charakteristisch für diese Methodik ist, dass die Erfüllung einer kundenseitig geforderten Eigenschaft nicht von vorneherein entweder an eine Sach- oder eine Dienstleistungskomponente geknüpft ist. Diese Zuordnung ergibt sich erst während des Entwicklungsprozesses des PSS. Durch den vorgestellten Ansatz, der am Beispiel der Sanitär-, Heizungs- und Klimabranche illustriert wird, werden bestehende Ansätze der materiellen Produktentwicklung und der systematischen Entwicklung von Dienstleistungen adäquat integriert.AbstractThe article describes a development methodology for product-service systems with which the characteristics of material and service components can be systematically derived on the basis of properties resulting from customer requirements. Characteristic for this development process is the fact that the fulfillment of the characteristics required by the customer is not linked to a material or service component from the first. This happens during the development process of the product-service system. The approach introduced here, based on the heating, air conditioning and sanitary engineering branch, adequately integrates existing approaches for product development and service engineering.


J. of Design Research | 2008

Design and usage of an engineering methodology for product-service systems

Oliver Thomas; Philipp Walter; Peter Loos

This article describes a development methodology for product-service systems where the characteristics of material and service components can be systematically derived on the basis of criteria resulting from customer requirements. Typical for this development process is the fact that the fulfilment of the characteristics required by the customer is not linked from the first to material or service components. This takes place during the development process of the product-service system. The approach introduced here, exemplified by the heating, air conditioning and sanitary engineering branch, adequately integrates existing approaches for product development and service engineering.


Archive | 2006

Das Referenzmodellverständnis in der Wirtschaftsinformatik : Historie, Literaturanalyse und Begriffsexplikation

Oliver Thomas

Das Kernstuck jeder wissenschaftlichen Disziplin ist eine eigene, einheitliche und anerkannte Begriffswelt. Als anwendungsorientierter Vermittler zwischen der Betriebswirtschaftslehre und der Informatik benotigt die Wirtschaftsinformatik im Besonderen ein theoretisches Fundament und ein Instrumentarium, welches theoretisches Grundlagenwissen in praktische Anwendungen umsetzt. Ihre Praxisnahe und -abhangigkeit sowie die rasche Entwicklung der Informationstechnologie stehen einer soliden, systematischen und konsistenten Begriffsbildung oft im Wege. Fur die Referenzmodellierung gilt im Speziellen die Notwendigkeit ihrer theoretischen Fundierung, da durch den starken Einfluss implementierungsorientierter Uberlegungen innerhalb dieses Gebiets zwischen nForschung und Praxis eine Lucke entstand, die haufig zu Fehlentwicklungen nfuhrt. Die hohen Erwartungen, die Organisations- und Anwendungssystemgestalter nan die Wiederverwendung von Referenzmodellen knupfen, werden nicht selten enttauscht. Offensichtlich entsprechen die seitens der Referenzmodellentwickler ausgesprochenen Empfehlungen vielfach nicht den Erwartungen potenzieller Modellnutzer. Ein Grund dafur liegt in dem uneinheitlichen Verstandnis fur den Referenzmodellbegriff. Der vorliegende Arbeitsbericht wirkt diesem Missstand durch eine detaillierte Analyse des Referenzmodellverstandnisses in der Wirtschaftsinformatik entgegen.


Archive | 2000

E-Business — Wer geht? Wer bleibt? Wer kommt?

August-Wilhelm Scheer; Fabian Erbach; Oliver Thomas

Der reibungslose Ablauf unternehmungsubergreifender Geschaftsprozesse gewinnt durch die Globalisierung der Markte permanent an Bedeutung. Das Management dieser Geschaftsprozesse hat sich durch die zunehmende Verzahnung von Produkten, Dienstleistung und Wissen zu einer zentralen Herausforderung fur die Unternehmungen etabliert. Die Gestaltung und Optimierung der Prozesse an den Schnittstellen zwischen den Unternehmungen (Business-to-Business) als auch zwischen den Unternehmungen und ihren Kunden (Business-to-Consumer) rucken dabei immer mehr in den Mittelpunkt. Das geeignete Medium zur Unterstutzung dieser Geschaftsprozesse ist das Internet.


Journal of Software | 2008

Design and Implementation of a Version Management System for Reference Modeling

Oliver Thomas

The central idea in reference modeling is the reutilization of the business knowledge contained in a reference model. The user’s task in reference model-based construction is the adaptation of the reference model. The derivation of specific models from reference models corresponds with the creation of reference model variants. Research on the design of such variant constructions generally assumes an unchangeable stock of reference models. The potential inherent in the management of these variant constructions, which reflect the changes in designed reference models through time and in doing so, their evolutionary development, has not yet been tapped into. The article at hand analyzes this problem and presents a concept for the version management of reference models as a solution. The task to be mastered with the proposed approach will be concretized using data structures and a system architecture and then prototypically implemented.


Archive | 2009

Ordnungsrahmen für die hybride Wertschöpfung

Jörg Becker; Daniel Beverungen; Ralf Knackstedt; Christoph Glauner; Marco Stypmann; Christoph Rosenkranz; Robert Schmitt; Sarah Hatfield; Gertrud Schmitz; Simone Eberhardt; Michaela Dietz; Oliver Thomas; Philipp Walter; Hans-Martin Lönngren; Jan Marco Leimeister

Mit Ordnungsrahmen lassen sich hoch aggregierte Uberblicke uber die wesentli-chen Funktionsbereiche einer Domane darstellen. Der Beitrag regt die Entwick-lung eines Ordnungsrahmens fur die hybride Wertschopfung an. Mit der Konstruk-tion des Ordnungsrahmens soll eine modellbasierte Grundlage geschaffen werden, um in weiterfuhrenden Arbeiten einen strukturierten Uberblick uber die fur die hybride Wertschopfung bereits entwickelten beziehungsweise zukunftig zu entwi-ckelnden Artefakte bereitstellen zu konnen. Als Ausgangspunkt fur die Konstrukti-on eines hierfur geeigneten Ordnungsrahmens wird ein erster Vorschlag zu dessen inhaltlicher Gestaltung prasentiert. Der vorgestellte Ordnungsrahmen wird evalu-iert, indem er zur Strukturierung von in Expertenbefragungen erhobenen Artefak-ten der hybriden Wertschopfung herangezogen wird.


hawaii international conference on system sciences | 2008

Using Process Models for the Design of Service-Oriented Architectures: Methodology and E-Commerce Case Study

Oliver Thomas; Katrina Leyking; Florian Dreifus

This article explains the importance of business process management for service orientation and illustrates how process models can be used for the design and realization of service-oriented architectures. We will introduce a multi-level concept consisting of a design, a configuration and an execution level. The approach presented here, illustrated along the standards of EPC, BPMN, BPEL and WSDL, bridges the existing research gap between conceptual modeling and service-oriented IT support. The requirements analysis from an online-mail order company in the consumer electronics sector serves as a use case. Results show that up to now, organizational aspects have been neglected in the SOA discussion.

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August-Wilhelm Scheer

German Research Centre for Artificial Intelligence

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Dirk Metzger

University of Osnabrück

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Andreas Kiesow

University of Osnabrück

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