28. The system according to claim 19 , comprising a service description provider arranged to create said machine-readable service description and to make available said machine-readable service description to the requesting entity.
28. The system according to claim 19 , comprising a service description provider arranged to create said machine-readable service description and to make available said machine-readable service description to the requesting entity. 29. The system according to claim 28 , wherein said service description provider is associated with said responding entity.