PR which key in the form is signed by DOA. Then the officer issue PR number (PR number 10XXXXXX) in the system which it is approved by DOA. Then, the PR sends to procurement department to issue PO (PO number 2XXXXX). (The order amount in PO is the same in PR but the price is sometimes different as the bargaining.) PR approved follow by DOA. From testing, we found that, the PR was approved follow by DOA via sign in paper and e-mail approved. Then, the responsible purchase person key in system to open PO.