Crafted with EdrawMax, this *E - commerce System Use Case Diagram Template* maps interactions for User, Seller, and Admin. Users search products by categories, place orders, interact with sellers, and give feedback. Sellers handle product/order management and financial overviews. Admins manage user accounts, orders, products, and memberships. Key elements like “LOGIN/Sign Up” are included, with extensions such as filtering categories or updating order status. Valuable for developers, it serves as a design blueprint. Whether planning system features, analyzing roles, or documenting requirements, the template uses UML to clarify interactions, aiding efficient e - commerce platform development and understanding.