Articles

2010

Lampe , U.; Schuller, D.; Eckert, J.; Steinmetz, R. (2010)

Optimizing Service Selection for Probabilistic QoS Attributes

In: Proceedings of the 4th International Workshop on Architecture, Concepts and Technologies for Service Oriented Computing (ACT4SOC 2010); Piraeus, Greece

Category: Proceedings

Reference No.: 2010-1857

Hoebel, N.; Kreuzer, S. (2010)

CORD: A Hybrid Approach for Efficient Clustering of Ordinal Data using Fuzzy Logic and Self-Organizing Maps

In: Proceedings of the 6th International Conference on Web Information Systems and Technologies (WEBIST); Valencia, Spain

Category: Proceedings [Password Protected Download] (Please contact the author)

Abstract

This paper presents CORD, a hybrid clustering system, which combines modifications of three modern clustering approaches to create a hybrid solution, that is able to efficiently process very large sets of ordinal data. The Self-organizing Maps algorithm for categorical data by Chen and Marques is hereby used for a rough preclustering for finding the initial position and number of centroids. The main clustering task utilizes a k-modes algorithm and its fuzzy set extension described by Kim et al. for categorical data using fuzzy centroids. Finally in dealing with large amounts of data, the BIRCH algorithm described by Zhang et al. for efficient clustering of very large databases (VLDBs) is adapted to ordinal data. BIRCH can be used as a preliminary phase for both Fuzzy Centroids and NCSOM. Both algorithms profit from this symbiosis as their iterative computations can be done on data, that is fully held in main memory. Combining these approaches, the resulting system is able to extract significant information even from very large datasets efficiently. The presented reference implementation of the hybrid system shows good results. The aim is clustering and visual analyzing large amounts of user profiles. This should help in understandingWeb user behavior and personalize advertisement.

Reference No.: 2010-1856

Lampe , U.; Schulte, S.; Siebenhaar, M.; Schuller, D.; Steinmetz, R. (2010)

Adaptive Matchmaking for RESTful Services based on hRESTS and MicroWSMO

In: Proceedings of the 5th Workshop on Enhanced Web Service Technologies (WEWST 2010); Ayia Napa, Cyprus

Category: Proceedings

Reference No.: 2010-1852

Lampe , U.; Siebenhaar, M.; Schulte, S.; Steinmetz, R. (2010)

A Graphical Evaluation Tool for Semantic Web Service Matchmaking

In: Poster and Demo Proceedings of 9th International Semantic Web Conference (ISWC2010); Shanghai, China

Category: Proceedings

Reference No.: 2010-1851

Schulte, S.; Lampe , U.; Eckert, J.; Steinmetz, R. (2010)

LOG4SWS.KOM: Self-Adapting Semantic Web Service Discovery for SAWSDL

In: IEEE 2010 Fourth International Workshop of Software Engineering for Adaptive Service-Oriented Systems (SEASS '10) at 2010 IEEE 6th World Congress on Services (SERVICES 2010); Miami, FL, USA

Category: Proceedings

Reference No.: 2010-1850

Lilienthal, M.; Messerschmidt, C.; Skiera, B. (2010)

The Utility of TAM-Perceptions: Integration of Technology Perceptions into Choice-Based Conjoint Analysis

In: Proceedings of the Australasian Conference on Information Systems (ACIS) 2010; Brisbane, Australia

Category: Proceedings

Reference No.: 2010-1847

Messerschmidt, C.; Lilienthal, M.; Skiera, B. (2010)

Integration of Technology Perceptions in Discrete Choice Experiments: Connecting CBC and TAM via the No-Choice-Option

In: Proceedings of the Australia and New Zealand Marketing Academy Conference (ANZMAC) 2010; Christchurch, New Zealand

Category: Proceedings

Reference No.: 2010-1846

Messerschmidt, C.; Hinz, O. (2010)

The Adoption of Inter-Organizational Systems in Financial Services

In: EFL Quarterly 3/2010; Frankfurt am Main

Category: Book

Reference No.: 2010-1845

Messerschmidt, C.; Mosch, A. (2010)

Zielgruppe Digital Natives - Bankkunde 2.0

In: Bankmagazin 01/2010

Category: Publications in journals

Reference No.: 2010-1844

Miede, A. (2010)

Cross-organizational Service Security -- Attack Modeling and Evaluation of Selected Countermeasures

In: Dr. Hut Verlag; München

Category: Book

Reference No.: 2010-1781

Martin, S. (2010)

Organizational Outsourcing Readiness – Empirically Investigating the Role of Client’s IT Capability, Knowledge, and Alignment of Outsourcing

In: Ibidem Verlag

Category: Dissertation thesis

Abstract

How can prospective outsourcing clients prepare their internal organizational workflows to meet the challenges associated with an outsourcing venture with little penalty in time, cost, and effort? Along this guiding question, the author empirically investigates the ways in which several factors of the client company's internal organizational context affect the outcomes of their outsourcing efforts. The investigated factors represent the client's IT capability, the explicit knowledge in form of business process documentation available within the company, and the level of alignment between the client's IT and business domains. Based on qualitative and quantitative empirical data, S. F. Martin demonstrates that each of these client-specific factors has a significant inter-organizational impact, affecting the quality of the relationship between client and provider, the vendor’s performance, and outsourcing success.

Reference No.: 2010-1779

Schuller, D. (2010)

Optimizing QoS-based Service Selection in Service-oriented Architectures

In: Proceedings of the 5th International Conference on Software and Data Technologies (ICSOFT 2010); Setubal, Portugal

Category: Proceedings

Reference No.: 2010-1777

Schaper, T. (2010)

Organising equity exchanges

In: (forthcoming) Information Systems and E-Business Management

Category: Publications in journals

Reference No.: 2010-1775

Groth, S. (2010)

Who to Blame for Volatile Markets? Computers vs. Humans

In: 23rd Australasian Banking & Finance Conference, Sydney, Australia

Category: Proceedings

Reference No.: 2010-1774

Repp, N.; Steffens, U.; Schulte, S. (2010)

Workshop IT-Governance in verteilten Systemen (GVS) 2010 (Vorwort)

In: Service Science - Neue Perspektiven für die Informatik - Proceedings der Informatik 2010, Lecture Notes in Informatics; Leipzig, Germany

Category: Proceedings

Reference No.: 2010-1771

Schulte, S.; Siebenhaar, M.; Steinmetz, R. (2010)

Integrating Semantic Web Services and Matchmaking into ebXML Registry

In: Proceedings of the Fourth International Workshop SMR2 2010 on Service Matchmaking and Resource Retrieval in the Semantic Web; Shanghai, China

Category: Proceedings

Abstract

While the "Universal Description, Discovery and Integration" (UDDI) service registry standard has drawn great attention by the research community, it has not been widely adopted by the software industry. Objections towards UDDI include technical as well as conceptional arguments. Being an official ISO standard and providing a number of features UDDI is missing, "Electronic Business using Extensible Markup Language" (ebXML) Registry could be an adequate alternative for the implementation of service registries and/or repositories. However, little work has been done regarding the integration of Semantic Web Services (SWS) into ebXML Registry. In this paper, we present a solution extending the ebXML Registry by capabilities to handle and provide SWS. This includes a concept for the integration of SWS into ebXML Registry as well as a prototypical implementation using SAWSDL and the open source framework freebXML.

Reference No.: 2010-1769

Schuller, D.; Eckert, J.; Steinmetz, R. (2010)

Optimizing Service Selection for Probabilistic QoS Attributes

In: Proceedings of ACT4SOC 2010 (4th International Workshop on Architecture, Concepts and Technologies for Service Oriented Computing); Piräus, Griechenland

Category: Proceedings

Reference No.: 2010-1768

Miede, A.; Schuller, D.; Eckert, J.; Steinmetz, R.; Lampe , U. (2010)

Evaluating the QoS Impact of Web Service Anonymity

In: Proceedings of the Eighth IEEE European Conference on Web Services (ECOWS 2010); Ayia Napa, Cyprus

Category: Proceedings

Reference No.: 2010-1754

Groth, S.; Meyer, A.; Muntermann, J. (2010)

IT-gestützte Automatisierung in der Fondsadministration

In: Zeitschrift für das gesamte Kreditwesen, Ausgabe Technik 3-2010, pp. 20-23

Category: Publications in journals

Reference No.: 2010-1750

Siebenhaar, M.; Schulte, S.; Steinmetz, R. (2010)

A Graphical Evaluation Tool for Semantic Web Service Matchmaking

In: Proceedings of the 9th International Semantic Web Conference (ISWC2010); Shanghai, China

Category: Book

Reference No.: 2010-1747

Schulte, S.; Siebenhaar, M.; Schuller, D.; Steinmetz, R. (2010)

Adaptive Matchmaking for RESTful Services based on hRESTS and MicroWSMO

In: Proceedings of the 5th Workshop on Enhanced Web Service Technologies (WEWST 2010); Ayia Napa, Zypern

Category: Proceedings

Reference No.: 2010-1746

Schulte, S. (2010)

Web Service Discovery Based on Semantic Information - Query Formulation and Adaptive Matchmaking

In: Technische Universität Darmstadt; Darmstadt

Category: Dissertation thesis [Find it]

Abstract

Service-oriented Computing introduces a range of possible applications spanning from the combination of Web services in software mashups to the design and implementation of entire IT system landscapes following the paradigm of Service-oriented Architectures. The discovery of services which provide a desired capability is one of the basic operations in Service-oriented Computing and is deemed to be one of the grand challenges in Web service research. This applies in particular to scenarios with a large number of service offers, where it is desirable to automate the discovery process to some degree. Service discovery is based on the description of service components, e.g., interfaces or operations. As the syntactic description of a Web service is often imprecise, semantic Web services are considered to play a decisive role in the facilitation of service discovery. In this context, the application and utilization of semantic information in service discovery concerns the ability of service providers to describe services, the ability of requesters to specify requirements, and the effectiveness of the service matchmaker, i.e., an algorithm that takes into account a request and finds the best fitting services from a set of service offers. Matchmaking research focuses on the selection of the necessary elements from a service description, similarity metrics, and the combination of the resulting similarity values. This thesis provides several contributions to the improvement and ease of service discovery based on semantic information. The main contributions are made in the fields of service matchmaking and query formulation. Regarding the first-mentioned contribution, two approaches to matchmaking for semantic Web services are presented. The first of which, LOG4SWS.KOM, is based on "classical" subsumption matching and introduces an innovative way to weight and combine different matching degrees. LOG4SWS.KOM is self-adaptive to different basic assumptions regarding the semantic concepts applied in a service description. This includes different presumptions regarding what a semantic annotation on a distinct service abstraction level actually denotes as well as the meaning of different subsumption relationships between semantic concepts. LOG4SWS.KOM is applied to different abstraction levels of a service description, which may not necessarily be completely described using semantic information. Hence, the matchmaker includes a linguistic-based fallback strategy, triggering the need to incorporate syntactic information. The second matchmaker, COV4SWS.KOM, deviates from logic-based similarity measurement and applies methods from the field of relatedness measurement of semantic concepts in ontologies. This way, COV4SWS.KOM allows more fine-grained relationships than conventional subsumption matching-based approaches. Additionally, COV4SWS.KOM introduces the adaptation to varying quality and usefulness of syntactic descriptions and semantic annotations at different abstraction levels of a service description. Both matchmakers are implemented for SAWSDL and provide, to the best of our knowledge, the best matchmaking results for this Web service standard regarding Information Retrieval metrics, so far. Regarding the second focus of this thesis - query formulation for semantic Web service discovery - an extensive analysis of requirements towards a unified service query formalism has been conducted. Based on this analysis, two different approaches to query formulation for semantic Web services have been designed, developed, and implemented. The first is a lightweight approach making use of already existing standards and technologies: Here, a slightly extended SPARQL syntax for SAWSDL-based service descriptions is integrated into UDDI. However, the usage of existing standards imposes some constraints, as especially SPARQL has not been explicitly designed for query formulation for semantic Web services. Hence, a second, more advanced approach, has been implemented, where a distinct, SPARQL-based query language is conceptualized and integrated in a service registry. This language - SWS2QL - allows a service requester to address different service abstraction levels, incorporate and parameterize matchmakers, define thresholds, etc., leading to a sophisticated, fine-grained definition of service requests. Even though the corresponding proof of concept implementation makes use of ebXML as service registry standard and SAWSDL as service formalism, results can be easily transferred to other registry and service technologies, as the approach is based on abstract service data and query models. This way, a unified service query formalism is provided. Apart from the main contributions, this thesis also provides a general framework based on ebXML, which features the integration of semantic Web service descriptions and different service matchmakers into this registry standard.

Reference No.: 2010-1741

Lewandowska, O. (2010)

Adoption of a centralised post trade processing market infrastructure after the credit crisis

In: M.L. Nelson et al. (Eds.): Sustainable e-Business Management, LNBIP 58, pp. 36-47, Springer; Berlin, Heidelberg

Category: Chapter in book [Find it]

Reference No.: 2010-1739

Gomber, P.; Pierron, A. (2010)

MiFID - Spirit and Reality of a European Financial Markets Directive

In: Research Report

Category: Other publications

Reference No.: 2010-1732

Siebenhaar, M.; Niemann, M.; Eckert, J.; Steinmetz, R. (2010)

ProMatch.KOM: Tool Support for Process Model Analysis and Improvement

In: Demonstration Track of the 8th International Conference on Business Process Management (BPM 2010); Hoboken, New Jersey, USA

Category: Book

Reference No.: 2010-1731

Niemann, M.; Siebenhaar, M.; Eckert, J.; Steinmetz, R. (2010)

Process Model Analysis using Related Cluster Pairs

In: Proceedings of the 1st International Workshop on 'Processes in the Large' (IW-PL’10) in connection with the 8th International Conference on Business Process Management (BPM 2010); Hoboken, New Jersey, USA

Category: Proceedings

Reference No.: 2010-1730

Lewandowska, O. (2010)

Is a Full Scale Straight Through Processing of OTC Derivatives Possible?

In: FinanceCom 2010; Frankfurt

Category: Proceedings

Reference No.: 2010-1725

Gomber, P.; Pujol, G.; Wranik, A. (2010)

Best Execution in Fragmented European Equity Markets: A Longitudinal Analysis of Broker Policies

In: FinanceCom 2010; Frankfurt

Category: Proceedings

Reference No.: 2010-1724

Prifling, M. (2010)

A Case Study in the Cooperative Banking Sector

In: AIS SIG IT Project Management Newsletter Fall 2010

Category: Miscellaneous

Reference No.: 2010-1723

Wolf, M.; Beck, R.; Vykoukal, J. (2010)

An Integrated Perspective on IT Project Alignment in Highly Dynamic Environments – A Multi-Level Analysis

In: Proceedings of the 31st International Conference on Information Systems (ICIS 2010); Saint Louis, Missouri, USA

Category: Proceedings [Password Protected Download] (Please contact the author)

Reference No.: 2010-1720

Messerschmidt, C.; Lilienthal, M. (2010)

Acceptance of a WebOS as a Commercial Consumer Service

In: Proceedings of the 18th European Conference on Information Systems; Pretoria, South Africa

Category: Proceedings

Reference No.: 2010-1718

Messerschmidt, C.; Berger, S.; Skiera, B. (2010)

Web 2.0 im Retail Banking - Einsatzmöglichkeiten, Praxisbeispiele und empirische Nutzeranalyse

In: Gabler Verlag; Springer Fachmedien Wiesbaden GmbH

Category: Book [Find it]

Reference No.: 2010-1717

Skiera, B. (2010)

Differences in the Ability of Structural and Reduced-Form Models to Improve Pricing Decisions

In: Zeitschrift Marketing – Journal of Research and Management; 32(1e), 91

Category: Publications in scientific journals

Reference No.: 2010-1716

Barrott, C.; Albers, S.; Skiera, B.; Schäfers, B. (2010)

Vickrey vs. eBay: Why Second-price Sealed-bid Auctions Lead to More Realistic Price-demand Functions

In: International Journal of Electronic Commerce; 14 (4), 7–38

Category: Publications in scientific journals

Reference No.: 2010-1715

Skiera, B.; Eckert, J.; Hinz, O. (2010)

An Analysis of the Importance of the Long Tail in Search Engine Marketing

In: Electronic Commerce Research and Application; forthcoming

Category: Publications in scientific journals

Reference No.: 2010-1714

Henning-Thurau, T.; Malthouse, E.; Friege, C.; Gensler, S.; Lobschat, L.; Rangaswamy, A.; Skiera, B. (2010)

The Impact of New Media on Customer Relationships: From Bowling to Pinball

In: Journal of Service Research; forthcoming

Category: Publications in scientific journals

Reference No.: 2010-1713

van Bruggen, G.; Spann, M.; Lilien, G.; Skiera, B. (2010)

Prediction Markets as institutional forecasting support systems

In: Decision Support Systems; Vol. 49 (4), pp. 404-416

Category: Publications in scientific journals

Reference No.: 2010-1712

Schulte, S.; Siebenhaar, M.; Eckert, J.; Steinmetz, R. (2010)

Query Languages for Semantic Web Services

In: Service Science - Neue Perspektiven für die Informatik - Proceedings der Informatik 2010, Lecture Notes in Informatics; Leipzig

Category: Proceedings [Find it]

Abstract

Even though service discovery is one of the vital steps in Web service invocation, service requests are usually expressed by rather simple means. While syntax-based service descriptions are usually addressed using keyword-based queries, Semantic Web Services are queried using ``perfect'' service descriptions. Hence, a service requester is not able to control the outcome of the discovery process in-depth by specifying similarity ranges or to explicitly state which syntax- and semantic-based parts of a service description should be addressed. In this paper, we present an analysis of current approaches to service request formulation and identify requirements a query formalism for Semantic Web Services should fulfill. Furthermore, we give a brief preview on SWS2QL, a SPARQL-based query language for Semantic Web Services.

Reference No.: 2010-1707

Lewandowska, O. (2010)

Adoption of a centralised post-trade processing market infrastructure after the crisis

In: 16th Americas Conference on Information Systems (AMCIS); Lima, Peru

Category: Proceedings [Find it]

Reference No.: 2010-1698

Niemann, M.; Miede, A.; Johannsen, W.; Repp, N.; Steinmetz, R. (2010)

Structuring SOA Governance

In: International Journal of IT/Business Alignment and Governance (IJITBAG)

Category: Publications in journals

Reference No.: 2010-1697

Papageorgiou, A.; Miede, A.; Eckert, J.; Steinmetz, R. (2010)

Study and Comparison of Adaptation Mechanisms for Performance Enhancements of Mobile Web Service Consumption

In: Sixth IEEE World Congress on Services (SERVICES 2010); Miami, USA

Category: Proceedings

Abstract

Mobile Web services lie on the intersection of two big IT trends, namely Service-oriented Architectures (SOA) and mobile applications. So, their usage is likely to expand dramatically in the next years. However, the heavyweight nature of service-orientation in terms of the messaging-overhead that is necessary in order to achieve interoperability and loose-coupling comes in contrast with the lightweight nature of mobile devices and with the need to transmit wirelessly as few data as possible. This study categorizes the mechanisms that have been designed in order to bridge this gap, provides comparisons, discusses the results of related experiments, and introduces the future scenario in which the insights of the study can be exploited.

Reference No.: 2010-1696

Papageorgiou, A.; Krop, T.; Schulte, S.; Eckert, J.; Steinmetz, R. (2010)

Enhancing Availability with Self-Organization Extensions in a SOA Platform

In: Fifth International Conference on Internet and Web Applications and Services (ICIW 2010); Barcelona, Spain

Category: Proceedings

Abstract

The availability and reliability of Service-oriented architectures (SOA) depends on two factors: On the one hand, the availability and reliability of the services that provide a certain business functionality and on the other hand the services that make up the underlying SOA platform. For platforms that are supposed to form the core of mission-critical service-oriented applications, this implicates the need for mechanisms that can regulate the reliability- and availability-levels of the core services in changing conditions. In this paper, we discuss open questions about what kind of monitoring functionalities and service replication mechanisms should be integrated in SOA infrastructures. Therefore, the integration of concepts from peer-to-peer (P2P) computing is proposed: We present a self-organization extension that can improve the availability of the core services of SOA infrastructures, and we provide an experiment-based evaluation, showing some of the benefits that this extension can have in a critical scenario. The concepts are prototypically implemented as extensions of Apache Tuscany, which is a realization of the Service Component Architecture (SCA) standard.

Reference No.: 2010-1695

Schuller, D. (2010)

Sichere und Zuverlässige Prozessausführung in Serviceorientierten Architekturen

In: Workshop Proceedings of the 2nd Central-European Workshop on Services and their Composition; Berlin

Category: Proceedings

Reference No.: 2010-1693

Schuller, D.; Eckert, J.; Miede, A.; Schulte, S.; Steinmetz, R. (2010)

QoS-Aware Service Composition for ComplexWorkflows

In: Proceedings of International Conference on Internet and Web Applications and Services; Barcelona, Spain

Category: Proceedings

Reference No.: 2010-1692

Eckert, J.; Repp, N.; Martin, W. (2010)

SOA Check 2010: Status quo - Trends - Perspektiven.

In: SOA - Mehr als nur flexible Softwarearchitekturen; ISBN 978-3-939358-63-3.

Category: Chapter in book

Reference No.: 2010-1686

Eckert, J.; Miede, A.; Papageorgiou, A.; Steinmetz, R. (2010)

Readiness and Maturity of Service-oriented Architectures in the German Banking Industry - A Multi-Participant Case Study.

In: IEEE International Conference on Digital Ecosystems and Technologies 2010 (IEEE DEST 2010); Dubai

Category: Proceedings

Reference No.: 2010-1685

Eckert, J.; Repp, N.; Martin, W. (2010)

SOA Check 2010: Status Quo und Trends im Vergleich zum SOA Check 2007 bis 2009.

In: IT-Verlag. ISBN 3-936052-35-2.

Category: Book

Reference No.: 2010-1684

Pahlke, I.; Beck, R.; Wolf, M. (2010)

Enterprise-Mashup-Systeme als Plattform für situative Anwendungen – Nutzen und Herausforderungen für Unternehmen

In: WIRTSCHAFTSINFORMATIK, 52(5), pp. 299-310

Category: Publications in scientific journals

Reference No.: 2010-1681

Schaper, T.; Chlistalla, M. (2010)

The Impact of Information Technology on European Post-Trading

In: M.L. Nelson et al. (Eds.): Sustainable e-Business Management, LNBIP 58, pp. 48–62, Springer; Berlin, Heidelberg

Category: Chapter in book [Find it]

Reference No.: 2010-1675

Ende, B.; Gomber, P.; Lutat, M.; Weber, M. (2010)

A methodology to assess the benefits of smart order routing

In: Proceedings of the International Federation for Information Processing (IFIP) I3E 2010 conference; Buenos Aires, Argentina

Category: Proceedings

Reference No.: 2010-1672

Ende, B.; Muntermann, J. (2010)

Dark Pools of Liquidity in Electronic Securities Trading

In: BIT - Banking and Information Technology, Volume 11, No. 1, pp. 35-44

Category: Publications in scientific journals

Reference No.: 2010-1667

Gsell, M. (2010)

Essays on Algorithmic Trading

In: Ibidem-Verlag; Hannover

Category: Book [Find it]

Abstract

Technological innovations are altering the traditional value chain in securities trading. Hitherto the order handling, i.e. the appropriate implementation of a general trading decision into particular orders, has been a core competence of brokers. Labeled as Algorithmic Trading, the automation of this task recently found its way both into the brokers’ portfolio of service offerings as well as to their customers’ trading desks. The software performing the order handling thereby constantly monitors the market(s) in real-time and further evaluates historical data to dynamically determine appropriate points in time for trading. Within only a few years, this technology propagated itself among market participants along the entire value chain and has nowadays gained a significant market share on securities markets worldwide. Up to now, there has been only little research analyzing the impact of this special type of trading on markets. Markus Gsell's study aims at closing this gap by analyzing the drivers for adoption of this technology, the impact the application of this technology has on markets on a macro level, i.e. how the market outcome is affected, as well as on a micro level, i.e. how the exhibited trading behavior of these automated traders differs from normal traders’ behavior.

Reference No.: 2010-1666

Beimborn, D.; Joachim, N. (2010)

The Joint Impact of Service-Oriented Architectures and Business Process Management on Business Process Quality: An Empirical Evaluation and Comparison

In: Forthcoming in: Information Systems and e-Business Management Journal (ISeB); Springer, Berlin

Category: Publications in scientific journals

Abstract

What is the interplay between business process management (BPM) and service-oriented architecture (SOA) in achieving high business process quality? In this paper, we empirically investigate the impact of both SOA and BPM on business process quality in terms of straight-through processing, business-to-business integration, quality control, as well as standardization and consolidation of business processes. For the empirical evaluation of our model, we use the data of 157 German service firms. The results show that the SOA paradigm has still received rather low adoption rates in the industry. However, SOA, BPM, and related information technologies have a direct positive impact on business process quality and the analysis provides evidence for the complementarities of BPM and SOA since interaction effects between them have an additional significant impact on business process quality. Consequently, firms having adopted SOA can more effectively apply BPM.

Reference No.: 2010-1662

Beimborn, D.; Joachim, N.; Schlosser, F. (2010)

The Role of SOA for BPO Intention – Proposing a Research Model

In: Forthcoming in: Lecture Notes in Business Information Processing, Springer; Berlin

Category: Chapter in book

Reference No.: 2010-1661

Wolk, A.; Skiera, B. (2010)

The Influence of Tariff-Specific Preferences on Tariff Choice and Usage

In: Business Research; 3 (1), 70-80

Category: Publications in scientific journals

Reference No.: 2010-1644

Wiesel, T.; Skiera, B.; Villanueva, J. (2010)

My Customers are Better than Yours! On Customer Equity Reporting

In: Marketing Intelligence Review; 2 (1), 43-53

Category: Publications in scientific journals

Reference No.: 2010-1643

Schlereth, C.; Stepanchuk, T.; Skiera, B. (2010)

Optimization and Analysis of the Profitability of Tariff Structures with Two-Part Tariffs

In: European Journal of Operational Research EJOR; 206 (3), 691-701

Category: Publications in scientific journals

Reference No.: 2010-1642

Pahlke, I.; Beck, R.; Wolf, M. (2010)

Enterprise Mashup Systems as Platforms for Situational Applications - Benefits and Challenges in the Business Domain

In: Business & Information Systems Engineering, 2(5), pp. 305-315

Category: Publications in scientific journals

Reference No.: 2010-2

Schwartz, R.; Gomber, P. (2010)

Market prices, fundamental values and market data

In: BT Re:Sources Financial Markets Newsletter, March 2010

Category: Miscellaneous

Reference No.: 2010-1638

Schulte, S.; Eckert, J.; Steinmetz, R. (2010)

LOG4SWS.KOM: Self-Adapting Semantic Web Service Discovery for SAWSDL

In: IEEE 2010 Fourth International Workshop of Software Engineering for Adaptive Service-Oriented Systems (SEASS '10) at 2010 IEEE 6th World Congress on Services (SERVICES 2010); Miami, FL

Category: Proceedings [Find it]

Abstract

In recent years, a number of approaches to semantic Web service matchmaking have been proposed. Most of these proposals are based on discrete and thus relatively coarse Degrees of Match (DoMs). However, different basic assumptions regarding the generalization and specialization of semantic concepts in ontologies and their subsequent rating in matchmaking exist. Hence, most matchmakers are only properly suitable if these assumptions are met. In this paper, we present an approach for mapping subsumption reasoning-based DoMs to a continuous scale. Instead of determining the numerical equivalents of the formerly discrete DoMs manually, these values are automatically derived using a linear regression model. This permits not only easy combination with other numerical similarity measures, but also allows to adapt matchmaking to different basic assumptions. These notions are implemented and tested in LOG4SWS.KOM -- a matchmaker for SAWSDL that provides very good evaluation results with respect to Information Retrieval metrics such as precision and recall.

Reference No.: 2010-1637

Prifling, M. (2010)

Exploring Leadership Styles in Software Development Projects

In: Proceedings of the 14th Pacific Asia Conference on Information Systems (PACIS); Taipei, Taiwan

Category: Proceedings

Reference No.: 2010-1632

Prifling, M. (2010)

IT Project Portfolio Management - a Matter of Organizational Culture?

In: Proceedings of the 14th Pacific Asia Conference on Information Systems (PACIS); Taipei, Taiwan

Category: Proceedings

Reference No.: 2010-1631

Schaper, T.; Chlistalla, M. (2010)

The Impact of Information Technology on European Post-Trading

In: 16th Americas Conference on Information Systems (AMCIS); Lima, Peru

Category: Proceedings [Find it]

Reference No.: 2010-1627

Schaper, T. (2010)

Organising Equity Exchanges

In: (forthcoming) Information System and e-Business Management Journal

Category: Publications in journals

Reference No.: 2010-1625

Lewandowska, O.; Mack, B. (2010)

Squaring the Circle: Clearing Arrangements in Over-the Counter Derivatives Markets

In: 2nd International Conference: The Industrial Organisation of Securities Markets: Competition, Liquidity and Network Externalities; Frankfurt

Category: Proceedings

Reference No.: 2010-1622

Ende, B.; Lutat, M. (2010)

Trade-throughs in European cross-traded equities after transaction costs-empirical Evidence for the EURO STOXX 50

In: 2nd International Conference: The Industrial Organisation of Securities Markets: Competition, Liquidity and Network Externalities; Frankfurt

Category: Proceedings

Reference No.: 2010-1621

Vykoukal, J.; Beck, R.; Wolf, M. (2010)

Impact of Pressure for Environmental Sustainability on Grid Assimilation – Empirical Results from the Financial Services Industry

In: Australasian Journal of Information Systems, 17(1), pp. 83-106

Category: Publications in scientific journals [Password Protected Download] (Please contact the author)

Reference No.: 2010-1612

Zickert, F.; Beck, R. (2010)

Evaluation of the Goal-Oriented Requirements Engineering Method KAOS

In: Proceedings of the Sixteenth Americas Conference on Information Systems (AMCIS); Lima, Peru

Category: Proceedings

Reference No.: 2010-1611

Prifling, M. (2010)

The Organizational Culture’s Influence on Risks in IT Projects – a Structuration Perspective

In: Proceedings of the 16th Americas Conference on Information Systems (AMCIS), BEST PAPER AWARD NOMINEE; Lima, Peru

Category: Proceedings

Reference No.: 2010-1607

Chlistalla, M.; Gomber, P.; Schaper, T. (2010)

The Future of the European Post-Trading System

In: EFL Quarterly 02/2010, pp. 6-8; Frankfurt

Category: Other publications

Reference No.: 2010-1606

Rauch, C.; Wahrenburg, M. (2010)

Defensive Strategies in Takeovers

In: H. Kent Baker, Halil Kiymaz (2010 - forthcoming): The Art of Capital Restructuring: Creating Shareholder Value through Mergers and Acquisitions; Wiley and Sons

Category: Chapter in book

Reference No.: 2010-1598

Beck, R.; Gregory, R. (2010)

IT-Integration bei Bankenfusion

In: WISU - Das Wirtschaftsstudium 4/10

Category: Publications in journals

Reference No.: 2010-1594

Chlistalla, M.; Gomber, P.; Schaper, T. (2010)

The Future of the European Post-Trading System - A Delphi Study on the Future of the European Post-Trading System in the Light of Globalization and the Financial Crisis

In: Ibidem-Verlag; Hannover

Category: Book

Abstract

The European post-trading system has changed significantly in the last years and is currently facing enormous challenges, e.g. due to the financial crisis, stricter regulation of financial markets, globalization, and the automation of securities processing. Until now, a systematic assessment of the European post-trading industry is missing in academic literature. Using the Delphi methodology, this study among 158 experts from different areas of the post-trading industry aims to develop a joint and coherent view of what the European post-trading system will look like in the future. It identifies measures for the improvement of the post-trading system and the most important issues concerning risk management and information technologies within this industry.

Reference No.: 2010-1588

Lutat, M. (2010)

The Effect of Maker-Taker Pricing on Market Liquidity in Electronic Trading Systems - Empirical Evidence from European Equity Trading

In: 8th INFINITI Conference on International Finance; Dublin, Ireland

Category: Proceedings

Reference No.: 2010-1586

Lutat, M. (2010)

The Effect of Maker-Taker Pricing on Market Liquidity in Electronic Trading Systems - Empirical Evidence from European Equity Trading

In: Midwest Finance Association 59th Annual Meeting; Las Vegas, NV, USA

Category: Proceedings

Reference No.: 2010-1585

Chlistalla, M.; Gomber, P.; Schaper, T. (2010)

The Future of European Post-Trading - Consequences for Risk Management in View of the Financial Crisis

In: 8th INFINITI Conference on International Finance; Dublin, Ireland

Category: Proceedings

Reference No.: 2010-1582

Schott, K.; Beck, R.; Gregory, R. (2010)

Management of Globally Distributed Software Development Projects in Multiple-Vendor Constellations

In: Proceedings of the Fourth Global Sourcing Workshop; Zermatt, Switzerland

Category: Proceedings

Reference No.: 2010-1581

Weber, S.; Beck, R.; Gregory, R. (2010)

Design Science in Research Cooperations with the Industry: Findings from three Prototyping Projects

In: DESRIST 2010: 5th International Conference on Design Science Research in Information Systems and Technology; St. Gallen, Switzerland

Category: Proceedings

Abstract

A challenge that IS researchers face in general is to combine the goals of generating new scientific knowledge while at the same time producing practically relevant research results, e.g., in the form of IT artefacts. To combine rigor and relevance, researchers and practitioners need to collaborate to develop and employ methods that enable both the systematic generation of scientific insights and the knowledge exchange between academia and industry. In this paper, we present the findings of a research project where we entered into an industry-academic collaboration with the financial services industry involving three software development and implementation projects. We adopted a design science research approach to accompany the project and to guide the scientific discovery process. In the course of our research process we developed an innovative research model that integrates our experiences from the research project with existing design science research models.

Reference No.: 2010-1578

Zickert, F.; Beck, R. (2010)

Assessing Project Effort in Requirements Engineering: A Report on Design Research in Progress

In: DESRIST 2010: 5th International Conference on Design Science Research in Information Systems and Technology HERBERT A. SIMON BEST PAPER AWARD for the best paper of the conference; St. Gallen, Switzerland

Category: Proceedings

Abstract

In this paper we report on our design research in progress, where we have developed an artifact that assesses project effort resulting from requirements. Based on models used in the goal-oriented requirements engineering method KAOS, the artifact measures system size via function point analysis and analyzes system complexity via structural analysis. In addition, we provide theoretical explanations and empirically validate how size and structural complexity affect project effort. Overall effort depends on counted functions that must be transformed, since software development can be regarded as a transformation process where size matters. Structural complexity matters as well, since software development is also a complex problem, where effort spent depends on the structure of the problem. Insights from empirical evaluation in three software development projects are encouraging, wherefore we believe that the artifact appropriately assesses project effort. Furthermore, our artifact increases the utility of KAOS by providing additional information on project effort.

Reference No.: 2010-1577

Zickert, F.; Beck, R. (2010)

Because Effort Matters! - A Mapping Model for Assessing Project Effort in Requirements Engineering

In: Business & Information Systems Engineering (2:3), pp. 165-173

Category: Publications in scientific journals

Abstract

Project effort is critical for the success of software development projects. It has a major impact on whether constraints in time and budget can be complied with. But although requirements affect project effort, requirements engineering (RE) methods are not capable of assessing project effort. In this paper, we present our mapping model for assessing project effort (MMAPE). MMAPE incorporates into RE the assessment of project effort resulting from requirements for software development projects. It maps semantics of the RE method KAOS onto structures that are counted in function point analyses. We applied MMAPE in a case study on a software development project within a large financial institution. The validity of MMAPE is supported, since we found throughout consistent statements between information provided by MMAPE and data gathered from the case.

Reference No.: 2010-1576

Groth, S. (2010)

Enhancing Automated Trading Engines to Cope With News-Related Liquidity Shocks

In: (forthcoming) Proceedings of the 18th European Conference on Information Systems; Pretoria, South Africa

Category: Proceedings

Reference No.: 2010-1561

Beck, R. (2010)

Can IT Lean Against the Wind? Lessons From the Global Financial Crisis

In: Communications of the ACM (53:5), pp. 38-40

Category: Publications in scientific journals

Reference No.: 2010-1559

Gewald, H. (2010)

The perceived benefits of business process outsourcing: An empirical study of the German banking industry

In: Strategic Outsourcing; Vol 3; Issue 2; 89-105

Category: Publications in scientific journals [Find it]

Reference No.: 2010-1549

Miede, A.; Ackermann, T.; Repp, N.; Abawi, D.; Steinmetz, R.; Buxmann, P. (2010)

Attacks on the Internet of Services – The Security Impact of Cross-organizational Service-based Collaboration

In: Tagungsband Multikonferenz Wirtschaftsinformatik (MKWI) 2010, Teilkonferenz Integriertes Ertrags-/Risikomanagement in automatisierten Geschäftsprozessen

Category: Proceedings

Reference No.: 2010-1542

Miede, A.; Nedyalkov, N.; Gottron, C.; König, A.; Repp, N.; Steinmetz, R. (2010)

A Generic Metamodel for IT Security - Attack Modeling for Distributed Systems

In: Proceedings of the Second International Workshop on Organizational Security Aspects (OSA) (In Conjunction with the Fifth International Conference on Availability, Reliability and Security, ARES 2010)

Category: Proceedings

Reference No.: 2010-1541

Ende, B. (2010)

IT-Driven Execution Opportunities in Securities Trading: Insights into the Innovation Adoption of Institutional Investors

In: Proceedings of the 18th European Conference on Information System (ECIS 2010); Pretoria, South Africa

Category: Proceedings

Reference No.: 2010-22

Hinz, O.; Eckert, J. (2010)

The Impact of Search and Recommendation Systems on Sales in Electronic Commerce

In: Business & Information Systems Engineering; 2 (2), 67-77

Category: Publications in scientific journals

Reference No.: 2010-21

Hinz, O.; Eckert, J. (2010)

Der Einfluss von Such- und Empfehlungssystemen auf den Absatz im Electronic Commerce

In: Wirtschaftsinformatik; 52 (2), 65-77

Category: Publications in scientific journals

Reference No.: 2010-20

Schmitt, P.; Meyer, S.; Skiera, B. (2010)

Überprüfung des Zusammenhangs zwischen Weiterempfehlungsbereitschaft und Kundenwert

In: Schmalenbachs Zeitschrift für betriebswirtschaftliche Forschung zfbf; 62, 30-59

Category: Publications in scientific journals

Reference No.: 2010-1529

Wolf, M. (2010)

Determinants of Grid Assimilation in the Financial Services Industry - An Institutional Theory Perspective

In: Proceedings of the 18th European Conference on Information Systems (ECIS 2010); Pretoria, South Africa

Category: Proceedings

Reference No.: 2010-17

Gregory, R. (2010)

Design Science Research and the Grounded Theory Method: Characteristics, Differences, and Complementary Uses

In: Proceedings of the 18th European Conference on Information System (ECIS 2010); Pretoria, South Africa

Category: Proceedings

Reference No.: 2010-15

Gregory, R. (2010)

Review of the IS Offshoring Literature: The Role of Cross-Cultural Differences and Management Practices

In: Proceedings of the 18th European Conference on Information System (ECIS 2010); Pretoria, South Africa

Category: Proceedings

Reference No.: 2010-14

Vykoukal, J. (2010)

Grid Technology as Green IT Strategy? Empirical Results from the Financial Services Industry

In: Proceedings of the 18th European Conference on Information Systems (ECIS 2010); Pretoria, South Africa

Category: Proceedings [Password Protected Download] (Please contact the author)

Reference No.: 2010-13

Marschollek, O.; Beck, R.; Gregory, R. (2010)

Psychological Contract Violation in IT Megaprojects in the Context of Public Private Partnerships – The German TollCollect Case

In: Proceedings of the 18th European Conference on Information System (ECIS 2010); Pretoria, South Africa

Category: Proceedings

Abstract

Prior research in the context of public private partnerships has mainly focused on organizational and risk management aspects. Because there is a growing number of IT megaprojects in the context of public private partnerships, recent work concentrates on the explanation of the relationship between public and private partners and the success factors for these relations. However, we still have a lack of understanding on the causes and consequences for IT megaproject failure in the context of public private partnerships. In this exploratory, qualitative single-case study from the German TollCollect IT megaproject we draw on findings from the psychological contract theory to explain psychological contract violation as a threat to IT megaproject success. Our research model suggests that the management of common understanding and expectations, moderated by political and public pressure of a public-private environment, affects the stability of the psychological contract and therefore the success of an IT megaproject in the context of public private partnerships.

Reference No.: 2010-12

Schott, K.; Beck, R.; Gregory, R. (2010)

Conflict as Manifestation of Culture in Global IS Outsourcing Relationships

In: Proceedings of the 18th European Conference on Information System (ECIS 2010); Pretoria, South Africa

Category: Proceedings

Abstract

The objective of this paper is to propose a new way of analyzing culture in global IS outsourcing relationships. Previous research in IS has focused on the analysis of values, beliefs, customs, and other elements of culture whereas other inherent characteristics of culture, such as its dynamic and subjective nature, have been widely ignored. Hence, we suggest analyzing culture and identity in relation to action thereby accounting in more detail for the above mentioned characteristics. In particular, we develop a conceptual model describing the relationship between social identity and conflict in global IS outsourcing relationships. Propositions are derived from social identity and inter-personal conflict theory. The concept of cognitive flexibility (derived from cultural intelligence theory) is introduced as a moderator variable, influencing the relationship between social identity and inter-personal conflict. The conceptual model developed in this paper makes a theoretical contribution to the global IS outsourcing domain and serves as a basis for future empirical research.

Reference No.: 2010-11

Ende, B.; Muntermann, J. (2010)

Opacity and Exclusivity in Electronic Securities Trading: The Case of Dark Pools

In: Multikonferenz Wirtschaftsinformatik 2010 (MKWI); Göttingen

Category: Proceedings

Reference No.: 2010-10

Schlosser, F.; Wagner, H.; Beimborn, D.; Weitzel, T. (2010)

Role of Internal Business/IT Alignment and IT Governance for Service Quality in IT Outsourcing Arrangements

In: Proceedings of the 43rd Hawaii International Conference on System Sciences (HICSS); Kauai, HI, USA

Category: Proceedings

Reference No.: 2010-6

Groth, S.; Muntermann, J. (2010)

Discovering Intraday Market Risk Exposures in Unstructured Data Sources: The Case of Corporate Disclosures

In: Proceedings of the 43rd Hawaii International Conference on System Sciences (HICSS); Kauai, HI, USA

Category: Proceedings

Reference No.: 2010-5

Wolf, M.; Vykoukal, J.; Beck, R. (2010)

Services Grid Competence as Driver of Business Agility in Turbulent Environments - A Conceptual Model in the Financial Services Industry

In: Proceedings of the Hawaii International Conference on System Sciences (HICSS-43), BEST PAPER AWARD NOMINEE; Koloa, Kauai, Hawaii, USA

Category: Proceedings [Password Protected Download] (Please contact the author)

Reference No.: 2010-4

Weber, S.; Beck, R.; Wolf, M.; Vykoukal, J. (2010)

Portfolio Performance Measurement based on Service-Oriented Grid Computing: Developing a Prototype from a Design Science Perspective

In: Proceedings of the Hawaii International Conference on System Sciences (HICSS-43); Koloa, Kauai, Hawaii, USA

Category: Proceedings [Password Protected Download] (Please contact the author)

Reference No.: 2010-3

Rauch, C. (2010)

Bank Fragility and the Financial Crisis: Evidence from the US Dual Banking System

In: International Financial Review Volume 11; (forthcoming 2010)

Category: Publications in journals

Reference No.: 2010-1361