{"id":450,"date":"2024-10-09T07:56:30","date_gmt":"2024-10-09T07:56:30","guid":{"rendered":"https:\/\/www.go-uml.com\/vn\/?p=450"},"modified":"2024-10-09T07:56:30","modified_gmt":"2024-10-09T07:56:30","slug":"understanding-sequence-diagrams-through-an-atm-system-scenario","status":"publish","type":"post","link":"https:\/\/www.go-uml.com\/vn\/understanding-sequence-diagrams-through-an-atm-system-scenario\/","title":{"rendered":"Understanding Sequence Diagrams through an ATM System Scenario"},"content":{"rendered":"<h2>Introduction<\/h2>\n<p>A sequence diagram is a type of UML diagram that illustrates how objects interact in a particular scenario of a system over time. In this tutorial, we will explore a sequence diagram for an Automated Teller Machine (ATM) system. We will break down its components, interpret its meaning, and discuss its purposes.<\/p>\n<h2>Overview of the Sequence Diagram<\/h2>\n<p>The attached sequence diagram illustrates the interaction between various components of an ATM system during a cash withdrawal process. The primary entities involved are:<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/Sequence-Diagram-Break-Communication-Fragment.png\" alt=\"Sequence Diagram, UML Diagrams Example: Break Communication Fragment - Visual Paradigm Community Circle\" \/><\/p>\n<ul>\n<li><strong>Bank<\/strong>: Represents the bank server handling transactions.<\/li>\n<li><strong>Check<\/strong>: Represents the check object being processed.<\/li>\n<li><strong>CheckingAccount<\/strong>: Represents the user&#8217;s bank account.<\/li>\n<\/ul>\n<h3>Key Elements of the Sequence Diagram<\/h3>\n<ol>\n<li><strong>Lifelines<\/strong>: Vertical dashed lines representing the existence of an object over time. Each entity has a lifeline that shows when it is active.<\/li>\n<li><strong>Messages<\/strong>: Arrows between lifelines that denote the communication between objects. Messages can include method calls or return values.<\/li>\n<li><strong>Activation Boxes<\/strong>: Rectangles on lifelines that indicate when an object is active (i.e., executing a method).<\/li>\n<li><strong>Combined Fragments<\/strong>: A structure that allows for conditional logic within the interaction (e.g., loops, breaks).<\/li>\n<li><strong>Guards<\/strong>: Conditions that must be met for a certain path of execution to be followed.<\/li>\n<li><strong>Return Messages<\/strong>: Dashed arrows indicating the return of control back to the caller after a method execution.<\/li>\n<\/ol>\n<h2>Breakdown of the Sequence Diagram<\/h2>\n<h3>Steps in the Diagram<\/h3>\n<ol>\n<li><strong>Initiating the Transaction<\/strong>:\n<ul>\n<li><strong>User<\/strong> initiates the cash withdrawal by interacting with the ATM, which sends a request to the <strong>Bank<\/strong> to process the transaction.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Checking Balance<\/strong>:\n<ul>\n<li>The <strong>Bank<\/strong> retrieves the amount requested by calling <code>getBalance()<\/code> on the <strong>CheckingAccount<\/strong>.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Balance Verification<\/strong>:\n<ul>\n<li>The <strong>CheckingAccount<\/strong> returns the available balance. This amount is then checked against the requested withdrawal amount.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Conditional Logic<\/strong>:\n<ul>\n<li>If the balance is less than the requested amount, the flow enters a combined fragment marked with <code>break<\/code>. This indicates that the process will terminate early due to insufficient funds.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Handling Insufficient Funds<\/strong>:\n<ul>\n<li>If funds are insufficient, the <strong>Bank<\/strong> adds a transaction check for insufficient funds (<code>addInsufficientFundFee<\/code>), and the process returns the check to the user.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Successful Transaction Flow<\/strong>:\n<ul>\n<li>If sufficient funds are available, the transaction proceeds to debit the account (<code>addDebitTransaction(check, amount)<\/code>).<\/li>\n<li>The <strong>Bank<\/strong> also stores a photo of the check for transaction records.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Completion<\/strong>:\n<ul>\n<li>After processing, a message is returned to the user indicating the success or failure of the transaction.<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h2>Interpretation of the Sequence Diagram<\/h2>\n<h3>Meaning<\/h3>\n<p>The sequence diagram effectively visualizes the flow of a cash withdrawal process in an ATM system. It captures the key interactions between the user, the ATM, the bank, and the checking account, providing insights into how each component communicates and responds under various conditions.<\/p>\n<h3>Purpose<\/h3>\n<ol>\n<li><strong>Clarifying Interactions<\/strong>: It clarifies how the ATM interacts with the bank and the checking account during a withdrawal transaction.<\/li>\n<li><strong>Identifying Conditions<\/strong>: The diagram highlights decision points, such as checking whether the account balance is sufficient, which is crucial for understanding system behavior.<\/li>\n<li><strong>Documenting Processes<\/strong>: It serves as documentation for developers and stakeholders, detailing the workflow of the ATM system and the interactions between components.<\/li>\n<li><strong>Facilitating Debugging and Maintenance<\/strong>: By visualizing the transaction flow, developers can identify potential issues or areas for improvement in the system.<\/li>\n<li><strong>Supporting System Design<\/strong>: The diagram aids in designing the system architecture by demonstrating how different components work together.<\/li>\n<\/ol>\n<h2>Conclusion<\/h2>\n<p>Understanding sequence diagrams is essential for modeling the interactions within a system. The ATM sequence diagram illustrates the process of cash withdrawal, showcasing the collaboration between the bank, the checking account, and the user. By interpreting the diagram, we can appreciate its role in clarifying interactions, documenting processes, and supporting system design.<\/p>\n<p>Feel free to use this tutorial as a guide to create and analyze sequence diagrams in your own projects, enhancing your understanding of system interactions and workflows.<\/p>\n<p>&nbsp;<\/p>\n<ul>\n<li><a href=\"https:\/\/guides.visual-paradigm.com\/creating-sequence-diagrams-in-uml-a-comprehensive-tutorial\" target=\"_blank\" rel=\"noopener\">Creating Sequence Diagrams in UML: A Comprehensive Tutorial<\/a><\/li>\n<li><a href=\"https:\/\/guides.visual-paradigm.com\/understanding-sequence-diagram-notation-in-uml\" target=\"_blank\" rel=\"noopener\">Understanding Sequence Diagram Notation in UML<\/a><\/li>\n<li><a href=\"https:\/\/guides.visual-paradigm.com\/understanding-sequence-diagrams-a-comprehensive-guide\" target=\"_blank\" rel=\"noopener\">Understanding Sequence Diagrams: A Comprehensive Guide<\/a><\/li>\n<li><a href=\"https:\/\/online.visual-paradigm.com\/diagrams\/tutorials\/sequence-diagram-tutorial\" target=\"_blank\" rel=\"noopener\">Sequence Diagram Tutorial<\/a><\/li>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/guide\/uml-unified-modeling-language\/what-is-sequence-diagram\" target=\"_blank\" rel=\"noopener\">What is Sequence Diagram?<\/a><\/li>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/learning\/handbooks\/software-design-handbook\/sequence-diagram.jsp\" target=\"_blank\" rel=\"noopener\">Sequence Diagram<\/a><\/li>\n<li><a href=\"https:\/\/blog.visual-paradigm.com\/everything-you-need-to-know-about-sequence-diagrams\" target=\"_blank\" rel=\"noopener\">Everything You Need to Know About Sequence Diagrams<\/a><\/li>\n<li><a href=\"https:\/\/www.visual-paradigm.com\/support\/documents\/vpuserguide\/94\/2577\" target=\"_blank\" rel=\"noopener\">Sequence Diagram in Visual Paradigm<\/a><\/li>\n<li><a href=\"https:\/\/knowhow.visual-paradigm.com\/uml\/seq-diagram-combined-fragment\" target=\"_blank\" rel=\"noopener\">Using Alternative Combined Fragments in Sequence Diagram<\/a><\/li>\n<li><a href=\"https:\/\/guides.visual-paradigm.com\/understanding-sequence-diagrams-a-visual-blueprint-of-software-interactions\" target=\"_blank\" rel=\"noopener\">Understanding Sequence Diagrams: A Visual Blueprint of Software Interactions<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Introduction A sequence diagram is a type of UML diagram that illustrates how objects interact in a particular scenario of a system over time. In this tutorial, we will explore a sequence diagram for an Automated Teller Machine (ATM) system. We will break down its components, interpret its meaning, and discuss its purposes. Overview of the Sequence Diagram The attached sequence diagram illustrates the interaction between various components of an ATM system during a cash withdrawal process. The primary entities involved are: Bank: Represents the bank server handling transactions. Check: Represents the check object being processed. CheckingAccount: Represents the user&#8217;s bank account. Key Elements of the Sequence Diagram Lifelines: Vertical dashed lines representing the existence of an object over time. Each entity has a lifeline that shows when it is active. Messages: Arrows between lifelines that denote the communication between objects. Messages can include method calls or return values. Activation Boxes: Rectangles on lifelines that indicate when an object is active (i.e., executing a method). Combined Fragments: A structure that allows for conditional logic within the interaction (e.g., loops, breaks). Guards: Conditions that must be met for a certain path of execution to be followed. Return Messages: Dashed arrows indicating the return of control back to the caller after a method execution. Breakdown of the Sequence Diagram Steps in the Diagram Initiating the Transaction: User initiates the cash withdrawal by interacting with the ATM, which sends a request to the Bank to process the transaction. Checking Balance: The Bank retrieves the amount requested by calling getBalance() on the CheckingAccount. Balance Verification: The CheckingAccount returns the available balance. This amount is then checked against the requested withdrawal amount. Conditional Logic: If the balance is less than the requested amount, the flow enters a combined fragment marked with break. This indicates that the process will terminate early due to insufficient funds. Handling Insufficient Funds: If funds are insufficient, the Bank adds a transaction check for insufficient funds (addInsufficientFundFee), and the process returns the check to the user. Successful Transaction Flow: If sufficient funds are available, the transaction proceeds to debit the account (addDebitTransaction(check, amount)). The Bank also stores a photo of the check for transaction records. Completion: After processing, a message is returned to the user indicating the success or failure of the transaction. Interpretation of the Sequence Diagram Meaning The sequence diagram effectively visualizes the flow of a cash withdrawal process in an ATM system. It captures the key interactions between the user, the ATM, the bank, and the checking account, providing insights into how each component communicates and responds under various conditions. Purpose Clarifying Interactions: It clarifies how the ATM interacts with the bank and the checking account during a withdrawal transaction. Identifying Conditions: The diagram highlights decision points, such as checking whether the account balance is sufficient, which is crucial for understanding system behavior. Documenting Processes: It serves as documentation for developers and stakeholders, detailing the workflow of the ATM system and the interactions between components. Facilitating Debugging and Maintenance: By visualizing the transaction flow, developers can identify potential issues or areas for improvement in the system. Supporting System Design: The diagram aids in designing the system architecture by demonstrating how different components work together. Conclusion Understanding sequence diagrams is essential for modeling the interactions within a system. The ATM sequence diagram illustrates the process of cash withdrawal, showcasing the collaboration between the bank, the checking account, and the user. By interpreting the diagram, we can appreciate its role in clarifying interactions, documenting processes, and supporting system design. Feel free to use this tutorial as a guide to create and analyze sequence diagrams in your own projects, enhancing your understanding of system interactions and workflows. &nbsp; Creating Sequence Diagrams in UML: A Comprehensive Tutorial Understanding Sequence Diagram Notation in UML Understanding Sequence Diagrams: A Comprehensive Guide Sequence Diagram Tutorial What is Sequence Diagram? Sequence Diagram Everything You Need to Know About Sequence Diagrams Sequence Diagram in Visual Paradigm Using Alternative Combined Fragments in Sequence Diagram Understanding Sequence Diagrams: A Visual Blueprint of Software Interactions<\/p>\n","protected":false},"author":7,"featured_media":452,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"fifu_image_url":"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/Sequence-Diagram-Break-Communication-Fragment.png","fifu_image_alt":"","footnotes":""},"categories":[14,22],"tags":[],"class_list":["post-450","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-free-uml-tool","category-sequence-diagram"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Understanding Sequence Diagrams through an ATM System Scenario - Go UML Ti\u1ebfng Vi\u1ec7t<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.go-uml.com\/vn\/understanding-sequence-diagrams-through-an-atm-system-scenario\/\" \/>\n<meta property=\"og:locale\" content=\"vi_VN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Understanding Sequence Diagrams through an ATM System Scenario - Go UML Ti\u1ebfng Vi\u1ec7t\" \/>\n<meta property=\"og:description\" content=\"Introduction A sequence diagram is a type of UML diagram that illustrates how objects interact in a particular scenario of a system over time. In this tutorial, we will explore a sequence diagram for an Automated Teller Machine (ATM) system. We will break down its components, interpret its meaning, and discuss its purposes. Overview of the Sequence Diagram The attached sequence diagram illustrates the interaction between various components of an ATM system during a cash withdrawal process. The primary entities involved are: Bank: Represents the bank server handling transactions. Check: Represents the check object being processed. CheckingAccount: Represents the user&#8217;s bank account. Key Elements of the Sequence Diagram Lifelines: Vertical dashed lines representing the existence of an object over time. Each entity has a lifeline that shows when it is active. Messages: Arrows between lifelines that denote the communication between objects. Messages can include method calls or return values. Activation Boxes: Rectangles on lifelines that indicate when an object is active (i.e., executing a method). Combined Fragments: A structure that allows for conditional logic within the interaction (e.g., loops, breaks). Guards: Conditions that must be met for a certain path of execution to be followed. Return Messages: Dashed arrows indicating the return of control back to the caller after a method execution. Breakdown of the Sequence Diagram Steps in the Diagram Initiating the Transaction: User initiates the cash withdrawal by interacting with the ATM, which sends a request to the Bank to process the transaction. Checking Balance: The Bank retrieves the amount requested by calling getBalance() on the CheckingAccount. Balance Verification: The CheckingAccount returns the available balance. This amount is then checked against the requested withdrawal amount. Conditional Logic: If the balance is less than the requested amount, the flow enters a combined fragment marked with break. This indicates that the process will terminate early due to insufficient funds. Handling Insufficient Funds: If funds are insufficient, the Bank adds a transaction check for insufficient funds (addInsufficientFundFee), and the process returns the check to the user. Successful Transaction Flow: If sufficient funds are available, the transaction proceeds to debit the account (addDebitTransaction(check, amount)). The Bank also stores a photo of the check for transaction records. Completion: After processing, a message is returned to the user indicating the success or failure of the transaction. Interpretation of the Sequence Diagram Meaning The sequence diagram effectively visualizes the flow of a cash withdrawal process in an ATM system. It captures the key interactions between the user, the ATM, the bank, and the checking account, providing insights into how each component communicates and responds under various conditions. Purpose Clarifying Interactions: It clarifies how the ATM interacts with the bank and the checking account during a withdrawal transaction. Identifying Conditions: The diagram highlights decision points, such as checking whether the account balance is sufficient, which is crucial for understanding system behavior. Documenting Processes: It serves as documentation for developers and stakeholders, detailing the workflow of the ATM system and the interactions between components. Facilitating Debugging and Maintenance: By visualizing the transaction flow, developers can identify potential issues or areas for improvement in the system. Supporting System Design: The diagram aids in designing the system architecture by demonstrating how different components work together. Conclusion Understanding sequence diagrams is essential for modeling the interactions within a system. The ATM sequence diagram illustrates the process of cash withdrawal, showcasing the collaboration between the bank, the checking account, and the user. By interpreting the diagram, we can appreciate its role in clarifying interactions, documenting processes, and supporting system design. Feel free to use this tutorial as a guide to create and analyze sequence diagrams in your own projects, enhancing your understanding of system interactions and workflows. &nbsp; Creating Sequence Diagrams in UML: A Comprehensive Tutorial Understanding Sequence Diagram Notation in UML Understanding Sequence Diagrams: A Comprehensive Guide Sequence Diagram Tutorial What is Sequence Diagram? Sequence Diagram Everything You Need to Know About Sequence Diagrams Sequence Diagram in Visual Paradigm Using Alternative Combined Fragments in Sequence Diagram Understanding Sequence Diagrams: A Visual Blueprint of Software Interactions\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.go-uml.com\/vn\/understanding-sequence-diagrams-through-an-atm-system-scenario\/\" \/>\n<meta property=\"og:site_name\" content=\"Go UML Ti\u1ebfng Vi\u1ec7t\" \/>\n<meta property=\"article:published_time\" content=\"2024-10-09T07:56:30+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/Sequence-Diagram-Break-Communication-Fragment.png\" \/>\n<meta name=\"author\" content=\"curtis\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:image\" content=\"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/Sequence-Diagram-Break-Communication-Fragment.png\" \/>\n<meta name=\"twitter:label1\" content=\"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi\" \/>\n\t<meta name=\"twitter:data1\" content=\"curtis\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 ph\u00fat\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.go-uml.com\/vn\/understanding-sequence-diagrams-through-an-atm-system-scenario\/\",\"url\":\"https:\/\/www.go-uml.com\/vn\/understanding-sequence-diagrams-through-an-atm-system-scenario\/\",\"name\":\"Understanding Sequence Diagrams through an ATM System Scenario - 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Go UML Ti\u1ebfng Vi\u1ec7t","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.go-uml.com\/vn\/understanding-sequence-diagrams-through-an-atm-system-scenario\/","og_locale":"vi_VN","og_type":"article","og_title":"Understanding Sequence Diagrams through an ATM System Scenario - Go UML Ti\u1ebfng Vi\u1ec7t","og_description":"Introduction A sequence diagram is a type of UML diagram that illustrates how objects interact in a particular scenario of a system over time. In this tutorial, we will explore a sequence diagram for an Automated Teller Machine (ATM) system. We will break down its components, interpret its meaning, and discuss its purposes. Overview of the Sequence Diagram The attached sequence diagram illustrates the interaction between various components of an ATM system during a cash withdrawal process. The primary entities involved are: Bank: Represents the bank server handling transactions. Check: Represents the check object being processed. CheckingAccount: Represents the user&#8217;s bank account. Key Elements of the Sequence Diagram Lifelines: Vertical dashed lines representing the existence of an object over time. Each entity has a lifeline that shows when it is active. Messages: Arrows between lifelines that denote the communication between objects. Messages can include method calls or return values. Activation Boxes: Rectangles on lifelines that indicate when an object is active (i.e., executing a method). Combined Fragments: A structure that allows for conditional logic within the interaction (e.g., loops, breaks). Guards: Conditions that must be met for a certain path of execution to be followed. Return Messages: Dashed arrows indicating the return of control back to the caller after a method execution. Breakdown of the Sequence Diagram Steps in the Diagram Initiating the Transaction: User initiates the cash withdrawal by interacting with the ATM, which sends a request to the Bank to process the transaction. Checking Balance: The Bank retrieves the amount requested by calling getBalance() on the CheckingAccount. Balance Verification: The CheckingAccount returns the available balance. This amount is then checked against the requested withdrawal amount. Conditional Logic: If the balance is less than the requested amount, the flow enters a combined fragment marked with break. This indicates that the process will terminate early due to insufficient funds. Handling Insufficient Funds: If funds are insufficient, the Bank adds a transaction check for insufficient funds (addInsufficientFundFee), and the process returns the check to the user. Successful Transaction Flow: If sufficient funds are available, the transaction proceeds to debit the account (addDebitTransaction(check, amount)). The Bank also stores a photo of the check for transaction records. Completion: After processing, a message is returned to the user indicating the success or failure of the transaction. Interpretation of the Sequence Diagram Meaning The sequence diagram effectively visualizes the flow of a cash withdrawal process in an ATM system. It captures the key interactions between the user, the ATM, the bank, and the checking account, providing insights into how each component communicates and responds under various conditions. Purpose Clarifying Interactions: It clarifies how the ATM interacts with the bank and the checking account during a withdrawal transaction. Identifying Conditions: The diagram highlights decision points, such as checking whether the account balance is sufficient, which is crucial for understanding system behavior. Documenting Processes: It serves as documentation for developers and stakeholders, detailing the workflow of the ATM system and the interactions between components. Facilitating Debugging and Maintenance: By visualizing the transaction flow, developers can identify potential issues or areas for improvement in the system. Supporting System Design: The diagram aids in designing the system architecture by demonstrating how different components work together. Conclusion Understanding sequence diagrams is essential for modeling the interactions within a system. The ATM sequence diagram illustrates the process of cash withdrawal, showcasing the collaboration between the bank, the checking account, and the user. By interpreting the diagram, we can appreciate its role in clarifying interactions, documenting processes, and supporting system design. Feel free to use this tutorial as a guide to create and analyze sequence diagrams in your own projects, enhancing your understanding of system interactions and workflows. &nbsp; Creating Sequence Diagrams in UML: A Comprehensive Tutorial Understanding Sequence Diagram Notation in UML Understanding Sequence Diagrams: A Comprehensive Guide Sequence Diagram Tutorial What is Sequence Diagram? Sequence Diagram Everything You Need to Know About Sequence Diagrams Sequence Diagram in Visual Paradigm Using Alternative Combined Fragments in Sequence Diagram Understanding Sequence Diagrams: A Visual Blueprint of Software Interactions","og_url":"https:\/\/www.go-uml.com\/vn\/understanding-sequence-diagrams-through-an-atm-system-scenario\/","og_site_name":"Go UML Ti\u1ebfng Vi\u1ec7t","article_published_time":"2024-10-09T07:56:30+00:00","og_image":[{"url":"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/Sequence-Diagram-Break-Communication-Fragment.png","type":"","width":"","height":""}],"author":"curtis","twitter_card":"summary_large_image","twitter_image":"https:\/\/www.archimetric.com\/wp-content\/uploads\/2022\/02\/Sequence-Diagram-Break-Communication-Fragment.png","twitter_misc":{"\u0110\u01b0\u1ee3c vi\u1ebft b\u1edfi":"curtis","\u01af\u1edbc t\u00ednh th\u1eddi gian \u0111\u1ecdc":"4 ph\u00fat"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.go-uml.com\/vn\/understanding-sequence-diagrams-through-an-atm-system-scenario\/","url":"https:\/\/www.go-uml.com\/vn\/understanding-sequence-diagrams-through-an-atm-system-scenario\/","name":"Understanding Sequence Diagrams through an ATM System Scenario - 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