Technical Report, Dipartimento di Informatica e Sistemistica, Università di Roma "La Sapienza". Technical Report 10-2003 2003.
In this paper we propose a foundational vision of e-Services, in which we distinguish between the external behavior of an e-Service as seen by clients, and the internal behavior as seen by a deployed application running the e-Service. Such behaviors are formally expressed as execution trees describing the interactions of the e-Service with its client and with other e-Services. Using these notions we formally define e-Service composition in a general way, without relying on any specific representation formalism. We have also provide a classification of e-Services based on relevant properties of the execution trees.
@techreport{TR-DIS-2003-10, title = "A Foundational Framework for e-Services", year = "2003", author = "Daniela Berardi and Diego Calvanese and De Giacomo, Giuseppe and Maurizio Lenzerini and Massimo Mecella", institution = "Dipartimento di Informatica e Sistemistica, Università di Roma "La Sapienza"", number = "10-2003", }ps.gz pdf