Is the difference between ABBA and CDDC IN Rhyme schemes?

Yes, the difference between ABBA and CDDC in rhyme schemes is the arrangement of rhyming lines. In ABBA, the first and fourth lines rhyme with each other, while the second and third lines rhyme with each other. In CDDC, the first and third lines rhyme with each other, while the second and fourth lines rhyme with each other.