💡 Draw a sequence diagram of a fully detailed technical flow, with both API and DXL layer, for digital payment that performs a user through a web portal with authentication step and multiple payments choices, including third-party payment systems

💡 Show an activity diagram of a user going through an e-shop with digital payment, including third-party payment systems

💡 Create a detailed use case diagram of a user registration flow, including all possible paths

💡 Draw a sequence diagram of a fully detailed technical flow, with both API and DXL layer, for deleting a user account, including authentication step and third-party payment systems