Representing and Validating Digital Business Processes (2009)
Bodenstaff, L., Ceravolo, P., Damiani, E., Fugazza, C., Reed, K., Wombacher, A.
Li, C., Reichert, M., Wombacher, A.
Recently, a new generation of adaptive Process-Aware Information System (PAIS) has emerged, which enables dynamic service changes (i.e., changes of instances derived from a composite service and...
A Heuristic Approach for Discovering Reference Models by Mining Process Model Variants (2009)
Li, C., Reichert, M.U., Wombacher, A.
Recently, a new generation of adaptive Process-Aware Information Systems (PAISs) has emerged, which enables structural process changes during runtime while preserving PAIS robustness and consistency....
Analyzing Impact Factors on Composite Services (2009)
Bodenstaff, L., Wombacher, A., Reichert, M.U., Jaeger, M.C.
Although Web services are intended for short term, ad hoc collaborations, in practice many Web service compositions are offered longterm to customers. While the Web services making up the composition...
DHT-based self-adapting replication protocol for achieving high data availability (2009)
Knezevic, P., Wombacher, A., Risse, T.
An essential issue in peer-to-peer data management is to keep data highly available all the time. The paper presents a replication protocol that adjusts autonomously the number of replicas to deliver...
Li, C., Reichert, M.U., Wombacher, A.
Recently, a new generation of adaptive process management technology has emerged, which enables dynamic changes of composite services and process models respectively. This, in turn, results in a...
Discovering Reference Models by Mining Process Variants Using a Heuristic Approach (2009)
Li, C., Reichert, M.U., Wombacher, A.
Recently, a new generation of adaptive Process-Aware Information Systems (PAISs) has emerged, which enables structural process changes during runtime. Such flexibility, in turn, leads to a large...
Monitoring Dependencies for SLAs: The MoDe4SLA Approach (2008)
Bodenstaff, L., Wombacher, A., Reichert, M.U., Jaeger, M.C.
In service oriented computing different techniques for monitoring Service Level Agreements (SLAs) are available. Many of these monitoring approaches focus on bilateral agreements between partners....
On Measuring Process Model Similarity Based on High-Level Change Operations (2008)
Li, C., Reichert, M.U., Wombacher, A.
For various applications there is the need to compare the similarity between two process models. For example, given the as-is and to-be models of a particular business process, we would like to know...
Issues in Process Variants Mining (2008)
Li, C., Reichert, M.U., Wombacher, A.
In today's dynamic business world economic success of an enterprise increasingly depends on its ability to react to internal and external changes in a quick and flexible way. In response to this...
Discovering Process Reference Models from Process Variants Using Clustering Techniques (2008)
Li, C., Reichert, M.U., Wombacher, A.
In today's dynamic business world, success of an enterprise increasingly depends on its ability to react to changes in a quick and flexible way. In response to this need, process-aware information...
Mining Process Variants: Goals and Issues (2008)
Li, C., Reichert, M.U., Wombacher, A.
Recently, Process-Aware Information Systems (PAIS) were introduced, which allow for dynamic process and service changes. This, in turn, has led to a large number of process model variants, which are...
Composable Data Processing in Environmental Science - A Process View (2008)
Data processing in environmental science is essential for doing science. The heterogeneity of data sources, data processing operations and infrastructures results in a lot of manual data and process...
An Approach for Maintaining Models of an E-Commerce Collaboration (2008)
Bodenstaff, L., Wombacher, A., Wieringa, R.J., Reichert, M.U.
To keep an overview on complex E-Commerce collaborations several models are used to describe them. When models overlap in describing a collaboration, the overlapping information should not...
Discovering Reference Process Models by Mining Process Variants (2008)
Li, C., Reichert, M.U., Wombacher, A.
Recently, a new generation of adaptive Process-Aware Information Systems (PAIS) has emerged, which allows for dynamic process and service changes (e.g., to insert, delete, and move activities and...
Mining Based on Learning from Process Change Logs (2008)
Li, C., Reichert, M.U., Wombacher, A.
In today’s dynamic business world economic success of an enterprise increasingly depends on its ability to react to internal and external changes in a quick and flexible way. In response to this...
Personalized Information Access in a Wiki Using Structured Tagging (2007)
Singh, A. V., Wombacher, A., Aberer, K.
Environmental engineers from different organizations work in interdisciplinary projects having the need of information exchange. In particular, a collaborative environment with personalized access to...
A Service Composition Construct to Support Iterative Development (2007)
Grønmo, R., Jaeger, M.C., Wombacher, A.
Development of composed services requires a continues adaptation of the composed service to the changing environment of offered services. Services may no longer be available or may change performance...
Toward Semantics-aware Representation of Digital Business Processes (2007)
Bodenstaff, L., Ceravolo, P., Fugazza, C., Wombacher, A.
An extended enterprise (EE) can be described by a set of models each representing a specific aspect of the EE. Aspects can for example be the process flow or the value description. However, different...
WSC-07: Evolving the Web Services Challenge (2007)
Blake, M.B., Cheung, W.K.W., Jaeger, M.C., Wombacher, A.
Service-oriented architecture (SOA) is an evolving architectural paradigm where businesses can expose their capabilities as modular, network-accessible software services. By decomposing capabilities...
A lot of work exists on notions of equivalence and soundness relations of different workflow models, which are used in different domains like e.g. Business Process Modeling, Software and Service...
On Measuring Process Model Similarity based on High-level Change Operations (2007)
Li, C., Reichert, M.U., Wombacher, A.
For various applications there is the need to compare the similarity between two process models. For example, given the as-is and to-be models of a particular business process, we would like to know...
On Formal Consistency between Value and Coordination Models (2007)
Bodenstaff, L., Wombacher, A., Reichert, M.U.
In information systems (IS) engineering dierent techniques for modeling inter-organizational collaborations are applied. In particular, value models estimate the profitability for involved...
Monitoring Collaboration from a Value Perspective. (2007)
Bodenstaff, L., Wombacher, A., Reichert, M.U., Wieringa, R.J.
Collaborations among businesses can be described from different viewpoints. Two of these viewpoints are the value viewpoint, representing estimated values exchanged in a collaboration, and the...
Business Level Service-Oriented Enterprise Application Integration (2007)
Pokraev, S.V., Quartel, D.A.C., Steen, M.W.A., Wombacher, A., Reichert, M.U.
In this paper we propose a new approach for service-oriented enterprise application integration (EAI). Unlike current EAI solutions, which mainly focus on technological aspects, our approach allows...
Indexing business processes based on annotated finite state automata (2006)
The existing service discovery infrastructure with UDDI as the de facto standard, is limited in that it does not support more complex searching based on matching business processes. Two business...
Preface on Workshop on Dynamic Process Management (DPM 2006) (2006)
Reichert, M.U., Verma, K., Wombacher, A.
The agility of an enterprise increasingly depends on its ability to dynamically set up new business processes or to modify existing ones, and to quickly adapt its information systems to these process...
Dynamic Consistency between Value and Coordination Models - Research Issues (2006)
Bodenstaff, L., Wombacher, A., Reichert, M.U.
Inter-organizational business cooperations can be described from different viewpoints each fulfilling a specific purpose. Since all viewpoints describe the same system they must not contradict each...
Highly Available DHTs: Keeping Data Consistency After Updates (2006)
Knežević, P., Wombacher, A., Risse, T.
The research in the paper is motivated by building a decentralized/P2P XML storage on top of a DHT (Distributed Hash Table). The storage must provide high data availability and support updates. High...
Evaluation of technical measures for workflow similarity based on a pilot study (2006)
Service discovery of state dependent services has to take workflow aspects into account. To increase the usability of a service discovery, the result list of services should be ordered with regard to...
WSC-06: The Web Service Challenge; in Proceedings of the Web Service Challenge (2006)
Blake, M.B., Cheung, W.K.W., Wombacher, A.
In today’s businesses, there is a trend that serviceoriented architecture (SOA) is evolving into a popular architectural paradigm for IT infrastructure. SOA allows companies’ software systems to...
Decentralized Consistency Checking in Cross-organizational Workflows (2006)
Service Oriented Architectures facilitate loosely coupled composed services, which are established in a decentralized way. One challenge for such composed services is to guarantee consistency, i.e.,...
Evolution of workflow similarity measures in service discovery (2006)
Service discovery of state-dependent services has to take workflow aspects into account. To increase the usability of a query result, the results should be ordered with regard to their relevance,...
On the controlled evolution of process choreographies (2006)
Rinderle, S.B., Wombacher, A., Reichert, M.U.
Process--aware information systems have to be frequently adapted due to business process changes. One important challenge not adequately addressed so far concerns the evolution of process...
Evolution of Process Choreographies in DYCHOR (2006)
Rinderle, S.B., Wombacher, A., Reichert, M.U.
Process-aware information systems have to be frequently adapted due to business process changes. One important challenge not adequately addressed so far concerns the evolution of process...
Dynamic Consistency between Value and Coordination Models - Research Issues. (2006)
Bodenstaff, L., Wombacher, A., Reichert, M.U.
Inter-organizational business cooperations can be described from different viewpoints each fulfilling a specific purpose. Since all viewpoints describe the same system they must not contradict each...
Matchmaking for Business Processes based on Conjunctive Finite State Automata (2005)
Wombacher, A., Fankhauser, P., Mahleko, B., Neuhold, E.
Web services have a potential to enhance B2B e-commerce over the internet by allowing companies and organisations to publish their business processes on service directories where potential trading...
IPSI-PF: A Business Process Matchmaking Engine based on annotated Finite State Automata (2005)
Wombacher, A., Mahleko, B., Neuhold, E.
Success of Web services mainly depends on the availability of tools facilitating usage of technology within the addressed B2B integration problems. One severe problem in loosely coupled systems is...
Multi-perspective approaches to analysis and design of businesses information systems are used to manage the complexity of the development process. A perspective contains a partial specification of...
Overview on Decentralized Establishment of Multi-lateral Collaborations (2005)
Service oriented architectures facilitate loosely coupled collaborations, which are established in a decentralized way. One challenge for such collaborations is to guarantee consistency, that is,...
Requirements for Secure Logging of Decentralized Cross-Organizational Workflow Executions (2005)
Wombacher, A., Wieringa, R.J., Jonker, W., Knežević, P., Pokraev, S.V.
The control of actions performed by parties involved in a decentralized cross-organizational workflow is done by several independent workflow engines. Due to the lack of a centralized coordination...
The EEE-05 Challenge: A New Web Service Discovery and Composition Competition (2005)
Blake, M.B., Tsui, K.C., Wombacher, A.
With growing acceptance of service-oriented computing, an emerging area of research is the investigation of technologies that will enable the discovery and composition of web services. Using the same...
A Formal Communication Model for Lookup Operations in a Hypercube-based P2P Data Store (2005)
Fahrenholtz, D., Wombacher, A.
P2P data stores achieve high data availability by introducing replication of data. As a consequence, searching data may require to follow several routing paths introducing additional communication. A...
Enabling High Data Availability in a DHT (2005)
Knezevic, P., Wombacher, A., Risse, T.
Many decentralized and peer-to-peer applications require some sort of data management. Besides P2P file-sharing, there are already scenarios (e.g. BRICKS project) that need management of...
Academic Panel: Can Self-Managed Systems be trusted? (2005)
Trust can be defined as to have confidence or faith in; a form of reliance or certainty based on past experience; to allow without fear; believe; hope: expect and wish; and extend credit to. The...
Process-annotated Service Discovery facilitated by an n-gram based index (2005)
Mahleko, B., Wombacher, A., Fankhauser, P.
Service discovery in web service infrastructure must consider abstract processes to guarantee successful business interactions with the matched services. Unfortunately, matchmaking process...
A Grammar-Based Index for Matching Business Processes (2005)
Mahleko, B., Wombacher, A., Fankhauser, P.
Complex services are composed of simple services which typically need to be processed in a particular order. Two complex services only match if they agree on both, their simple services and their...
Requirements for workflow modeling in P2P-Workflows derived from collaboration establishment (2004)
Web services advocate loosely coupled systems, although current applications are limited to centrally controlled structures. The reason for this imitation is the lack of a method for deciding...
Configuration of distributed message converter systems (2004)
Risse, T., Aberer, K., Wombacher, A., Surridge, M., Taylor, S.
Finding a configuration of a distributed system satisfying performance goals is a complex search problem that involves many design parameters, like hardware selection, job distribution and process...
P2P Evolution: from file-sharing to decentralized workflows (2004)
Risse, T., Knezevic, P., Wombacher, A.
Peer-to-peer (P2P) computing is currently receiving a great deal of attention. Much of the current attention is focused on the use of P2P computing for exchanging media files. But P2P systems have...
Matchmaking for business processes based on choreographies (2004)
Wombacher, A., Fankhauser, P., Mahleko, B., Neuhold, E.
Web services have a potential to enhance B2B ecommerce over the Internet by allowing companies and organizations to publish their business processes on service directories where potential trading...
Transforming BPEL into annotated deterministic finite state automata for service discovery (2004)
Wombacher, A., Fankhauser, P., Neuhold, E.
Web services advocate loosely coupled systems, although current loosely coupled applications are limited to stateless services. The reason for this limitation is the lack of a method supporting...
IPSI-PF: A business process Matchmaking engine (2004)
Wombacher, A., Mahleko, B., Neuhold, E.
Success of web services mainly depends on the availability of tools facilitating usage of technology within the addressed B2B integration problems. One severe problem in loosely coupled systems is...
Matchmaking for business processes based on choreographies (2004)
Wombacher, A., Fankhauser, P., Mahleko, B., Neuhold, E.
Web services have a potential to enhance B2B ecommerce over the Internet by allowing companies and organizations to publish their business processes on service directories where potential trading...
Matchmaking for business processes (2003)
Wombacher, A., Fankhauser, P., Mahleko, B., Neuhold, E.
Web services have a potential to enhance B2B ecommerce over the Internet by allowing companies and organizations to publish their business processes on service directories where potential trading...
Separating business process from user interaction in web-based information (2003)
Aberer, K., Datta, A., Despotovic, Z., Wombacher, A.
In Web-based information commerce it is diffcult to disentangle presentation from process logic, and sometimes even data is not separate from the presentation. Consequently, it becomes crucial to...
Classification of Ad hoc Multi-lateral collaborations based on local workflow models (2003)
Wombacher, A., Mahleko, B., Risse, T.
Establishing multi-lateral collaborations based on local workflows without having a global workflow is complicated, because the set of requirements used for the searching and matchmaking of trading...
Ad-Hoc Business Processes in Web Services (2003)
Web service technologies promise to facilitate collaboration among business partners by helping potential business partners find one another and integrate their business processes to do business....
Finding trading partners to establish ad-hoc business processes (2002)
Enabling technology for realizing ad-hoc business processes currently is becoming more and more popular, like for example web services. Ad-hoc business processes are semantically characterized by a...
Finding Trading Partners to Establish Ad-Hoc Business Processes (2002)
Enabling technology for realizing ad-hoc business processes currently is becoming more and more popular, like for example web services. Ad-hoc business processes are semantically characterized by a...
Towards a Platform for Supporting the Buyer in Trading in Heterogeneous Marketplaces (2002)
Mahleko, B., Klingemann, J., Fankhauser, P., Wombacher, A.
While the number of electronic marketplaces has increased on the Internet, tools to help buyers in participating in these marketplaces (heterogeneous marketplaces) are lacking. As part of the...
An architecture for information commerce systems (2001)
Hauswirth, M., Jazayeri, M., Miklós, Z., Podnar, I., Di Nitto, E., Wombacher, A.
Modelling the ICE standard with a formal language for information commerce (2001)
Automatizing information commerce requires languages to represent the typical information commerce processes. Existing languages and standards cover either only very specific types of business models...
Modelling the ICE standard with a formal language for information commerce (2001)
Automatizing information commerce requires languages to represent the typical information commerce processes. Existing languages and standards cover either only very specific types of business models...
An Architecture for Information Commerce Systems (2001)
Hauswirth, M., Jazayeri, M., Miklós, Z., Podnar, I., Di Nitto, E., Wombacher, A.
The increasing use of the Internet in business and commerce has created a number of new business opportunities and the need for supporting models and platforms. One of these opportunities is...
Online Scheduling in Distributed Message Converter Systems (2001)
Risse, T., Wombacher, A., Surridge, M., Taylor, S., Aberer, K.
The optimal distribution of jobs among hosts in distributed environments is an important factor to achieve high performance. The optimal strategy depends on the application. In this paper we present...
A language for information commerce processes (2001)
Automatizing information commerce requires languages to represent the typical information commerce processes. Existing languages and standards cover either only very specific types of business models...
Configuration of Distributed Message Converter Systems using Performance Modeling (2001)
Aberer, K., Risse, T., Wombacher, A.
To find a configuration of a distributed system satisfying performance goals is a complex search problem that involves many design parameters, like hardware selection, job distribution and process...
webXice: an Infrastructure for Information Commerce on the WWW (2001)
Wombacher, A., Kostaki, P., Aberer, K.
Systems for information commerce on the WWW have to support flexible business models if they should be able to cover a wide range of requirements imposed by the different types of information...
Konzeption und Entwicklung exemplarischer Informationsdienste für mobile Endgeräte (2000)
Mobility is a major issue in today's business society. In particular, this applies to the availability of information and different services for wireless devices. A new, increasing market is based on...
Efficient Processing Of Voluminous EDI Documents (2000)
Risse, T., Wombacher, A., Aberer, K.
Business data is frequently exchanged between heterogeneous information systems using standard EDI formats like EDIFACT, X12 and in the future also XML/EDI. For inhouse use, data represented in these...