introducing these dogs and cats

[Upirium]

I'm trying to introduce these cats to this dog. She's a big german sheppherd, they're little cats. I thought I had a plan which was to let them see eachother through the door but I got scratched that way, so...any ideas?
She's also really hyper... the dog that is  

[DeeSpark]

If she is hyper, exercise her until she is calm, bring her in on a leash, and use a marker word such as yes, or a clicker, to mark her when she is being good around the cats, feeding a treat each time. Let the cats come and go as they please.