The workflow is considered from the end user point and separated into four stages - onboarding, pre-shopping, shopping, and after shopping. The onboarding stage is for the user to know ShoppingHelper. The pre-shopping stage is for ShoppingHelper to give user recommendations and manage shopping list. The shopping stage is for ShoppingHelper to display the whole list to the user and finally, for the after shopping stage, it is for shoppingHelper to clear the whole list for user's next shopping event.