Does A and B needing to follow same specifications indicate coupling?

[yizhong187]

Hello everyone, I was reviewing the notes on coupling, and noticed that option f indicates coupling. Doesn't having to "follow the same data format or communication protocol" imply that they might both be coupled to some other component (the data format or communication protocol), rather than to each other? Thanks for any help!

[Feng1231]

Hi, I found this on the course website: Perhaps in this case, there is common coupling present between A and B.