5.4.3 Information transfer bus
32.1013GPPPrinciples and high level requirementsRelease 17Telecommunication managementTS
SPs, SCs and SDs transfer information among themselves. For example, a SC would send a service request to a SP. In SOA, a bus-like concept is used to depict the capability of such information transfer. This bus-like concept support a key attribute of SOA in that its basic elements, namely SP, SC and SDs, are all loosely-coupled, e.g. their bindings are to be established on need and at run-time basis.
The following figure depicts the loosely-coupled SOA elements supported by the Information transfer bus.
Figure 2c: Information transfer bus supporting SOA elements