Differences between DDS and SOME/IP

Both DDS and SOME/IP are service-oriented communication protocols that use a data-centric publish/subscribe model. However, they differ in the way they process data. SOME/IP uses an immediate processing method, which means that data is generated and processed only when a request is received; while DDS uses a pre-processing method, which means that data is generated before a request is received and services are provided immediately when a request is received. This difference gives DDS an advantage when processing large and urgent data requests.