"Fighting a six foot seven guy, we need to reduce that height, we need to slow him down, we need to take the wind from his sails, and the way to do that is break him down to the body. A guy who is six foot seven has a large body area to defend."
Parker, about to go for a week's holiday in Samoa before returning to his Las Vegas base to prepare for the fight, said: "That was the plan ... I went to the body a little later, round two or three, so it's important for this fight, like Kev said, to go to the body and break him down."
Three of Parker's previous opponents - Jason Bergman, Takam and Haumono - have been shorter than him, so now, starting with Dimitrenko, who has lost only two of 40 fights as a professional, the focus will be on fighting taller men.
"You look at Tyson Fury, Joshua, [Wladimir] Klitschko, these guys are all tall," Barry said. "These are the guys that we're targeting, these are the guys who dictate all the big purses in world heavyweight boxing so we need to go after them."
Dimitrenko is likely to be the toughest opponent Parker has faced, after Takam. The 34-year-old, who has been a professional since 2001, is a former junior world champion and has gone 11 rounds with the highly-ranked Kubrat Pulev.
However, Parker's trainer Barry has been carefully studying Dimitrenko since before the Haumono fight, and Parker is likely to have too much speed and variety on attack for his older and, inevitably, slower, opponent.
Parker also has the advantage of knowing he held his own when sparring with Klitschko a couple of years ago. "It gives me confidence ... because when Kevin told me what to do, it worked," he said.
Parker's promoters Duco Events will expect to enter negotiations with Joshua's camp in November regarding their title fight. Under the terms of the challenge, Joshua's promoters must enter talks between November 9 and December 9 and set a date for a fight, which will almost certainly be held in London, and probably late this year or in March next year.
