Cross-domain service change notification via trader federation
Banjong Huongrat, Twittie Senivongse · 2004
The nature of distribution and autonomy in an open environment makes it difficult to maintain a consistent view of service provision among distributed groups of clients. In the case that services are changed, their clients should be informed properly in order to reduce unexpected outcome of using the changed services. This paper presents an extension to our previous CORBA-based change notification system that can notify service changes of several kinds to subscribing clients in a single trader domain. Now the notification is extended for remote clients in a trader federation, meaning that clients who obtain remote services via federated traders can now be informed of remote service changes. The concept of service contracts in RM-ODP traders is adopted since the contract can be seen as a subscription of the importing trader to be notified of changes in those remote services listed in the contract.