Minimart hasn't a good management system.- They have not a good process to checking stock, then some product has expired but it' has no checking from owner and order more this product.- The shop is small and uses area of shop as storage. It provides a bad service for customer.- The shop uses the barcode system but the shop has not using it efficiently to checking stock of product.- The shop hasn't inventory, so they have to pay transportation cost for transport some product to shop.