I think it's too early for discipline. My little boy is 13 months & he also doesn't like diaper changes or clothes changes. It's like..he's rather be doing something interesting, like exploring his new world, than sit still for new clothes or daiper.
Don't get anxious about it. Try to involve her in something that interests her while you change her. If I can get my little boy interested in a toy or something, he doesn't seem to notice when I'm dressing him anymore. You need to take the control out of it. Don't get frustrated, just work with her.
For his birthday, someone bought him a 'Fridge DJ' by Leapfrog. When you turn it on, it sings songs and has a screen of lights that visualize the words. HE GETS SOOO ENTRANCED BY THIS TOY. My method for changing his clothes is not on the changing table. I sit on the floor with him. Turn on the fridge DJ, he watches it and he hardly knows I'm dressing him anymore. Other times, he'll walk around his room playing with various things. Again, this is when I dress him. He's distracted with other things. Sometimes I feel funny like I'm chasing him around the room trying to put on his clothes, but he's having fun playing with cups or books and he's dressed before he even knows it.
Also on the "NO" statements. My mother is a retired child psychologist and she has recommended that I not use "NO", because for (1) you'll be saying it all the time until it is meaningless, (2) you'll get frustrated because it's not working and (3) it's not very helpful at this age anyway. Therefore, I try to 're-direct' each time. When he wants to play with the window blinds, I redirect him to a toy. (My husband and I even say it out loud each time..."re-direct".) When he wants to play with the cat food, I redirect by rolling a ball past him. When he crawls to close to something he shouldn't, I'll pick him up and put him in the center of his toys, hand him one, and 'viola' he's distracted and happy!
I hope this helps.