Team Ducati did show signs of getting back to their best last season with Andrea Dovizioso taking a pole position and eleven top six finishes.
Dall'Igna believes the GP15 is the motorcycle to continue the progression.
"The Desmosedici GP15 that will make its debut in the next test in Malaysia is a completely new bike, different to the one we used two weeks ago in Sepang, even though certain aspects of the aerodynamics are quite similar.
"With the GP14.3 we have made some major progress with the software, which will be easy to switch over to the GP15, but also steps forward in the suspension, chassis and engine departments.
"The GP15 will start with the same settings as the GP14.3, but it will have many more possibilities for adjustment. Our aim this year is very ambitious, because we want to win at least one race," he said.
Dovizioso will give the GP15 its first run-out at Sepang next week and feels that there are good things ahead for Ducati.
"In a few days' time we will be going to Malaysia for the second winter test session at Sepang and I can't wait to test the new GP15. I am very happy with the improvements that we managed to achieve last year and so, with this new project, I can only be optimistic for the coming season.
"I think that the spirit and the desire to win that I see in Ducati are vitally important for all of us. I expect a lot of support from the Ducati fans this season: we have worked a lot and well in the last couple of years and now it's time to reap the benefits."