This functional workflow diagram provides an overview of an Online Book Store System, highlighting the different functionalities available to the system's users, categorized as administrators and customers. Administrators have the capability to add or modify book listings and update item tracking details. Customers interact with the system by searching for books, buying items, and making payments. This diagram serves as a blueprint for understanding the roles and actions within an e-commerce bookstore platform, showing how administrators manage the product listings and information flow, while customers engage in the purchasing and tracking of their orders.