Introduction Editor's Introduction i Feature Articles From an ebXML BPSS choreography to a BPEL-based implementation Ja-Hee Kim and Christian Huemer 1 Construction of Negotiation Protocols for ECommerce Applications Zlatko Zlatev, Nikolay Diakov, Stanislav Pokraev 12 A Framework For Representing Navigational Patterns As Full Temporal Objects Ajumobi Udechukwu, Ken Barker, and Reda Alhajj 23 The Maturity of Open Systems for B2B Ejub Kajan 31 From Market-driven Agents to Market-oriented Grids(Position Paper) Kwang Mong Sim 45 ISSN 1551-9031