The difference between parfum and EdP is a slightly lower perfume concentration. This particular fragrance is first and foremost aimed towards women.
From AllBeauty
Dolce&Gabbana - The One 30ml Eau de Parfum Spray for Women
The Beauty Store
Dolce & Gabbana The One Eau de Parfum Spray 30ml for Her
This product is also available at 4 unverified stores.