Cardiff manager Malky Mackay said his side will be ready to hit the ground running when they enter the Premier League next season.
Tuesday's 0-0 draw with Charlton means Cardiff can finish no lower than second in the Championship, seeing them return to English football's top flight for the first time in 51 years.
And Mackay, who took over the top job at the club in June 2011, said he is already thinking about engineering their Premier League survival.
"We will plan properly and that has begun already – now we are ready to put that plan into action," Mackay said.
"We will make sure what we have done over the last two years in terms of structure at the club and striving forward will continue to give ourselves the best chance.
"And through that we will try and be competitive.
"When I came here one of the things I said was that fans will accept mistakes, but not a lack of effort, and because of that we have always been competitive in every game we have played.
"We have won and lost games but we have always competed – that won't change."
Mackay paid tribute to the club's owner, Malaysian businessman Vincent Tan, for his support during the campaign.
"This is an occasion where the people of this club have waited a long time for and gone through a lot of disappointment along the way," he said.
"They have been through tough times, our owner has put a lot of money in, and the players, people have waited for a long time to be in top division.
"But they have backed me since I have been here and I am very grateful for that. Hopefully this repays that a little."
Tan said the Premier League would be a massive test for his club, but is hopeful of an extended stay.
"Malky Mackay has done a great job. He is a great manager," Tan said. "It is wonderful, a fantastic feeling.
"I looked at all the fans and everybody is so happy.
"Now we need to plan how to stay up in the Premier League. That will be a tough one for us.
"But it is not an impossible challenge. God willing we would like to stay up there a long time."