SenderReceiverInterface with multiple data elements difference from multiple ports and each with single data element
In AUTOSAR, SenderReceiverInterface can have multiple data elements as shown below snippet.
Is there any advantage or implementation difference when multiple data elements are used in a single software port compared to multiple software ports and each having single data elemment in the respective SenderReceiverInterface?
Does all data elements of a single SenderReceiverInterface on a Software Port are received or transmitted in atomic way all together by RTE?
The collection of dataElements in a SenderReceiverInterface is mostly a logistical choice. Designing SenderReciverInterfaces with few or only one dataElement may increase the chance of being able to re-use the SenderReceiverInterface in other contexts. But there's also motivation to create more complex SenderReceiverInterfaces because this saves time and takes away complexity for creating connectors between PortPrototypes.
The dataElements are sent/received entirely separate from each other. If you want atomicity, there is always the choice to create dataElements of composite data types. The elements of such a composite data type are always send and received atomically.
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