Donegal boss Jim McGuinness has warned his players they are far from the finished article despite their six-points win over Cavan.
The Ulster champions were too strong for a young Cavan team and the 1-16 to 1-10 puts them through to meet Derry.
"You have to be happy with a six-point win and I was disappointed with a lot of the second half," said McGuinness.
"We were not ruthless when we had chances to go forward and at times we were ponderous."
The Donegal boss added: "There is a lot to work on and we will have a look at the recording of the match. I suppose 1-16 is good kicking.
"Cavan are a good team, they are coming and are going to build in the next couple of years."
Terry Hyland, who only took over as Cavan county boss in April, said he could not fault the work rate of his players.
"We just did not take the right decisions at times and our shooting was a bit off - that is where we let ourselves down a little bit.
"We did not put enough on the scoreboard.
"Donegal are further down the road than our lads are.
"If we get the spirit and heart right, we will get the football right in the end.