April 05
Prof. Ismael H. F. Santos -  ismael@tecgraf.puc-rio.br                                                          2
Origin of Service-Oriented Architecture
nIBM has created a model to depict Web services interactions which is referred to as a “service-oriented architecture” comprising relationships among three entities (see next slide):
nA Web service provider;
nA Web service requestor; and a
nA Web service broker.
nNote: IBM’s service-oriented architecture is a generic model describing service collaboration, not specific to Web services.
nSee http://www-106.ibm.com/developerworks/webservices/