Dynamic service aggregation in electronic marketplaces

Workflow: A Language for Composing Web Services

“…The scenario provides a conceptual framework that can be applied to a wide range of business contexts. More details can be found in [11]. In this section we summarize the service composition model used by FreightMixer.…”

“…The system also monitors the execution of the complete solution if the deal is won. More details can be found in [11,13].…”

“…Initial results on the composition methodology developed in DySCo can be found in [11]. The aggregation aspects of the methodology are described in [13].…”

“…Concerning interactive steps, the interaction logic for the roles is based on an abstract execution environment also defined in DySCo. The abstract execution environment includes concepts such as a virtual repository shared by the roles, as well as direct role-to-role interaction (see [11] for more detail). The specification of the steps is based on workflow.…”

“…The objective of the DySCo (Dynamic Service Composition) [11] project is the development of a modelling and technology framework for the dynamic composition of web services. The distinctive element for DySCo with respect to other approaches [2,5,8,17] is the separation between composition logic and coordination logic.…”