The Big IDEA

I

Identify:
Identify a small section of a piece that needs work.
This should be 1-12 measures, avoid large sections.
Avoid "playing through" a whole piece.

D

Decide:
Decide on an OMG = Obtainable Musical Goal
What aspect of music needs work?
Fingerings, Intonation, Rhythm, Tempo, Tone, Bowing Articulation, Dynamics, Phrasing...

E

Execute:
Execute your goal using a variety of practice strategies. 
Repetition will always be a part of your practice, but should not be the only factor. 

A

Analyze:
Analyze how you did. Did you improve? Did you reach your goal? Did you choose effective strategies? Should you try something else next time?

Practice with Purpose