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Please give me some advice and instructions on how to do it. like how we draw when we have several actors. I need just a guide on how to draw a complete checkout and make a purchase sequence diagram separately. I created a sequence diagram for login, but I don't know if I have to take authentication as an actor or not. 1, registered visitors sequence diagram 2, user login sequence FIG. I'm trying to sketch some use cases, but for example, when it comes to completing checkout, there are many actors, and I'm not sure how to do it when there are more actors. Use Case Description of Online Garment shop management System project Registration Administration/User Login Manage cart View Products Place Order Manage. Online shopping system use case diagram, Programmer Sought, the best programmer. I googled and learned about sequencial diagrams, but I didn't find anything like this. Check Out (continue) Description Use Case. Post-condition: The ORDER table has been updated. The system sends a confirmation via CUSTOMER’s e-mail. The CUSTOMER checks that all information is correct and then clicks the OK button. For example, when I come to the checkout sequence diagram, I can assume that the procedure is done through view items, but in the view items sequence diagram, I must clearly draw the procedure sequence. The system will display the check-out information for confirmation. According to this use case diagram, I have to draw a sequence diagram for each use case except login by making an assumption.
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