 So for example, if I jump over here to our flowchart and we think about, you also can have a difference in terms of are you on a cash base or a cruel base with regards to your two main cycles, the vendor cycle or expense cycle and the customer cycle. So for example, on the vendor cycle at the end of the day, cash is going out for goods and services that we are buying in the business. Now, the easiest way to do that a cash based system would be that we're just going to pay for it possibly electronically as they come up with in essence a check form or a money out type of form, possibly just using bank feeds to do that. And that case we're on a cash based system because the form that we're using is just going to record the decrease in cash and expense when we enter it.