AIM features three main strategies, Just-In-Time (JIT), Stock-Days (SD) and Manual. 
Just-In-Time is designed to cover the lead days of the supplier and then take additional buffer days to set the replenishment point and size of the replenishment. 
Example: 
Stock-Days works similarly to JIT, except you simply enter the number of days for the min / max you want to hold. 
NOTE: Just-In-Time and Stock-Days will work the same way if they come to the same number of min and max days of stock, the only difference is how you arrive to these numbers. Just in Time will add buffers to lead days, while SD will have you set the Min / Max days of stock you want directly. 
Manual has you directly enter the quantity of stock for the min / max stock quantity instead of calculating it from demand and the desired 'days of stock.'