On 06/09/06, Hitoshi Ozawa <[EMAIL PROTECTED]> wrote: [snip] > > Additionally in my view, an ESB acts as a "intermediary" between a consumer > and a provider.
Why does that matter to either consumer or provider? They don't care how policy/contract is enforced, an ESB is just part of the execution context that links the consumer and provider. While it might provide very valuable facilities such as mediation et al, this shouldn't be evident to either consumer or provider. > > H.Ozawa > > > Dennis Djenfer wrote: > > > Steve, > > > > I would like to add a comment to my first response to your answer. I > > like your "simplistic" way of discriminating between a policy and a > > contract, however I don't see that a policy on its own can turn into a > > contract. Before something can turn into a contract there must be > > enough information to make a successfull interaction between the > > parties, hence a policy is only a part of a whole that will turn into > > a contract when the actual interaction occurs. > > > > I think that an exemple of something that could turn into a contract > > when the interaction occurs is a WSDL-file together with adequate > > assertions (policies). > > > > // Dennis Djenfer > > > > > > > > > > > > > > > ------------------------ Yahoo! Groups Sponsor --------------------~--> Yahoo! Groups gets a make over. See the new email design. http://us.click.yahoo.com/WktRrD/lOaOAA/yQLSAA/NhFolB/TM --------------------------------------------------------------------~-> Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/service-orientated-architecture/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/service-orientated-architecture/join (Yahoo! ID required) <*> To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
