Draw a sequence diagram to represent the scenario of "using vending machine to purchase drinks". Four objects have been defined as follows. Add the following functions: (1) change when the customer pays more than the price of the purchased beverage; (2) return the customer's payment if the purchased beverage has been sold out, otherwise, it will be sold normally. Draw a complete sequence diagram showing the above functions. Customer Front Register Dispenser

Draw a sequence diagram to represent the scenario of "using vending machine to purchase drinks". Four objects have been defined as follows. Add the following functions: (1) change when the customer pays more than the price of the purchased beverage; (2) return the customer's payment if the purchased beverage has been sold out, otherwise, it will be sold normally. Draw a complete sequence diagram showing the above functions. Customer Front Register Dispenser

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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