Abstract
Existing e-marketplaces, built on traditional client-server architectures, severely restrict the scope and dynamics of Business-to-Business (B2B) interactions. Peer-to-peer (P2P) architectures will provide far more decentralized infrastructures, while allowing a much wider range of business patterns to take place. On one hand, the interaction over a P2P network resembles the way real-world enterprises perform business with each other. On the other hand, a small set of simple services is enough to support complex business processes over a P2P infrastructure. Incidentally, most of the required technology is readily available, although it may be necessary to bring in an appropriate integration of different concepts. The paper discusses the implementation of essential services for P2P e-marketplaces, based on one of the leading P2P platforms, and illustrates its benefits by applying the P2P approach to a vendor of industrial equipment.

Abstract
Every time a workflow solution is conceived there is a large amount of functionality that is eventually reinvented and redeveloped from scratch. Workflow management systems from academia to the commercial arena exhibit a myriad of approaches having as much in common as in contrast with each other. Efforts in standardizing a workflow reference model and the gradual endorsement of those standards have also not precluded developers from designing workflow systems tailored to specific user needs. This article is written in the belief that an appropriate set of common workflow functionality can be abstracted and reused in forthcoming systems or embedded in applications intended to become workflow-enabled. Specific requirements and a prototype implementation of such functionality, named Workflow Kernel, are discussed.

Abstract
Existing e-marketplaces, built on traditional client-server architectures, severely restrict the scope and dynamics of B2B interactions. Peer-to-peer (P2P) architectures will provide far more decentralised infrastructures, white allowing a much wider range of business patterns to take place. The purpose of this paper is twofold: (1) to argue that interaction over a P2P network better resembles the way enterprises perform business with each other, and (2) to point out a set of essential services required it) make P2P infrastructures fit for B2B exchanges. An overview of those services is presented, based on one of the leading P2P platforms (JXTA).

Abstract
Within the scope of virtual and networked enterprises, this paper introduces a novel methodology for the integration of quality management into enterprise modeling and allowing for quality certification of the whole enterprise. The ISO 9001:2000 standard is presented as an interesting starting point for the virtual enterprise quality management system implimentation. Quality management systems certification within the scope of ISO 10011 (or even ISO FDIS 19011) is however quite a difficult task. An alternative scenario for certification is therefore proposed.

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Abstract