Université de Neuchâtel

Dynamic Server Selection in Distributed Object Computing Systems

Badidi, Elarbi ; Keller, Rudolf K. ; Kropf, Peter ; van Dongen, Vincent V.

In: Proceedings of the Workshop on Distributed Computing on the Web (DCW’98), 1998, p. 39-47

In this paper, we address the problem of dynamic server selection among a set of objectservers, as the ones defined by CORBA and DCOM, providing the same service type. Theseservers are not necessarily replicas but may have different interfaces and belong to differentservice providers. As a solution, we propose a novel architecture that we call LoDACE. Thisarchitecture has been designed to allow...

Université de Neuchâtel

Preserving the Context of Interrupted Business Process Activities

Bassil, Sarita ; Rinderle, Stefanie ; Keller, Rudolf K. ; Kropf, Peter ; Reichert, Manfred

In: Enterprise Information Systems VII, 2005, vol. 3, p. 149-156

The capability to safely interrupt business process activities is an important requirement for advanced processaware information systems. Indeed, exceptions stemming from the application environment often appear while one or more application-related process activities are running. Safely interrupting an activity consists of preserving its context, i.e., saving the data associated with this...

Université de Neuchâtel

Addressing Dynamism in E-negotiations by Workflow Management Systems

Bassil, Sarita ; Benyoucef, Morad ; Keller, Rudolf K. ; Kropf, Peter

In: Proceedings of the 13th International Workshop on Database and Expert Systems Applications (DEXA 02), 2002, p. 655–659

Workflows (Wfs) are a major enabling technology for e-commerce. In our research, a Combined Negotiation (CN) is modeled and enacted using Wf technology. The model-ing task captures the sequencing of the individual negotia-tions as well as the dependencies between them, and the enacting task runs the model. A CN support system (CON-SENSUS) is used by the user to perform both tasks. Sup-porting...

Université de Neuchâtel

A Dynamic Approach to Multi-transfer Container Management

Bassil, Sarita ; Bourbeau, Benoît ; Kropf, Peter ; Keller, Rudolf K.

In: Odysseus, 2nd International Workshop on Freight Transportation and Logistics, 2003, p. 1-3

This paper introduces a dynamic approach to manage the processing of client requests in a multi-transfer container transportation (MTCT) system. At the operational level, this type of system is faced with a continuously changing environment. In this context, the need for dynamic creation and adaptation of solutions is of utmost importance. The adopted approach is based on a two-layer framework...

Université de Neuchâtel

Towards Electronic Marketplaces: A Progress Report

Babin, Gilbert ; Crainic, Teodor Gabriel ; Gendreau, Michel ; Keller, Rudolf K. ; Kropf, Peter ; Robert, Jacques

In: 4th International Conference on Electronic Commerce Research (ICECR-4), 2001, p. 1-24

Market design is becoming a very important research topic in the context of the electronic economy. Two factors explain this trend: (1) the creation of new markets to facilitate deregulation (telecommunication frequencies, electric power, etc.) and (2) the emergence of strategic analysis and of experimental economics. E-commerce tools will contribute to the emergence of more structured...

Université de Neuchâtel

The Design of a Trader based CORBA Load Sharing Service

Badidi, Elarbi ; Keller, Rudolf K. ; Kropf, Peter ; van Dongen, Vincent V.

In: 12th International Conference on Parallel and Distributed Computing Systems (PDCS'99), 1999, p. 7580-7585

In the context of CORBA, standard services for naming, transaction processing, and alike have been defined. However, no standard support is provided to handle load imbalances that may occur in distributed object applications where several object servers are used to provide the same service type. To address this shortcoming, we have designed a CORBA-compliant had sharing service (LSS). Preliminary...

Université de Neuchâtel

A Workflow-Oriented System Architecture for the Management of Container Transportation

Bassil, Sarita ; Keller, Rudolf K. ; Kropf, Peter

In: Lecture notes in computer science (LNCS), 2004, vol. 3080, p. 116-131

In this paper, we introduce a workflow-oriented system architecture for the processing of client requests (CRs) for container transportation. In the context of multi-transfer container transportation, the processing of CRs can be achieved by specific sequences of interdependent activities. These sequences need to be just-in-time created. They also need to be adapted to deal with unexpected events...