What does Build and Run do in Xcode

Now that "Build and Run" is temporarily out of order in Unity 4.2.1 + Xcode 5, I was wondering what is the sequence of actions I should take in Xcode in order to exactly do what Build and Run did.

Should I Clean then Build for Running then Run ?

At first I only simply pressed the Play button in Xcode (which, as I understand does Build and Run) but then I noticed that I did not get the latest build on the device, so this prompted the question.

So far my action list looks like this:

1. Close Xcode if it is running

2. Press Build in Unity (with or without append)

3. Open the project in Xcode

4. Press Project > Clean

5. Press the Play button