Model, Software and Processor in the loop

Hello everyone, My question is about the Model in the loop, Software in the loop and Processor in the loop, i want to know if the word "loop" means that our system must be tested in the loop ?

Answer 1

[Walter Roberson]

No.

http://uk.mathworks.com/matlabcentral/answers/213701-how-mil-sil-is-a-closed-loop-testing#answer_179058

[Sm EmbeddedSystem]

Thank you