Ricardo Niepel
7 years ago
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# C4 Model Core Diagrams
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# C4 Model Diagrams
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The following samples are reproductions with C4-PlantUML from [C4 model core diagrams](http://c4model.com/#coreDiagrams) created by [Simon Brown](http://simonbrown.je/).
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## System Context Diagram
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## Core Diagrams
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### System Context Diagram
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Source: [C4_Context Diagram Sample - bigbankplc.puml](C4_Context%20Diagram%20Sample%20-%20bigbankplc.puml)
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## Container Diagram
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### Container Diagram
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Source: [C4_Container Diagram Sample - bigbankplc.puml](C4_Container%20Diagram%20Sample%20-%20bigbankplc.puml)
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## Component Diagram
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### Component Diagram
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Source: [C4_Component Diagram Sample - bigbankplc.puml](C4_Component%20Diagram%20Sample%20-%20bigbankplc.puml)
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## Supplementary Diagrams
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### System Landscape Diagram
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Source: [C4_Context Diagram Sample - bigbankplc-landscape.puml](C4_Context%20Diagram%Sample%20-%20bigbankplc-landscape.puml)
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@startuml
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!includeurl https://raw.githubusercontent.com/RicardoNiepel/C4-PlantUML/master/C4_Context.puml
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' uncomment the following line and comment the first to use locally
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' !include C4_Context.puml
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'LAYOUT_TOP_DOWN
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'LAYOUT_AS_SKETCH
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LAYOUT_WITH_LEGEND
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title System Landscape diagram for Big Bank plc
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Person(customer, "Personal Banking Customer", "A customer of the bank, with personal bank accounts.")
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Enterprise_Boundary(c0, "Big Bank plc") {
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System(banking_system, "Internet Banking System", "Allows customers to view information about their bank accounts, and make payments.")
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System_Ext(atm, "ATM", "Allows customers to withdraw cash.")
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System_Ext(mail_system, "E-mail system", "The internal Microsoft Exchange e-mail system.")
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System_Ext(mainframe, "Mainframe Banking System", "Stores all of the core banking information about customers, accounts, transactions, etc.")
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Person_Ext(customer_service, "Customer Service Staff", "Customer service staff within the bank.")
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Person_Ext(back_office, "Back Office Staff", "Administration and support staff within the bank.")
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}
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Rel_Neighbor(customer, banking_system, "Uses")
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Rel_R(customer, atm, "Withdraws cash using")
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Rel_Back(customer, mail_system, "Sends e-mails to")
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Rel_R(customer, customer_service, "Asks questions to", "Telephone")
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Rel_D(banking_system, mail_system, "Sends e-mail using")
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Rel_R(atm, mainframe, "Uses")
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Rel_R(banking_system, mainframe, "Uses")
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Rel_D(customer_service, mainframe, "Uses")
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Rel_U(back_office, mainframe, "Uses")
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Lay_D(atm, banking_system)
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Lay_D(atm, customer)
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Lay_U(mail_system, customer)
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@enduml
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@startuml "enterprise"
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!includeurl https://raw.githubusercontent.com/RicardoNiepel/C4-PlantUML/master/C4_Context.puml
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' uncomment the following line and comment the first to use locally
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' !include C4_Context.puml
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LAYOUT_TOP_DOWN
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'LAYOUT_AS_SKETCH
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LAYOUT_WITH_LEGEND
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Person(customer, "Customer", "A customer of Widgets Limited.")
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Enterprise_Boundary(c0, "Widgets Limited") {
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Person(csa, "Customer Service Agent", "Deals with customer enquiries.")
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System(ecommerce, "E-commerce System", "Allows customers to buy widgts online via the widgets.com website.")
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System(fulfilment, "Fulfilment System", "Responsible for processing and shipping of customer orders.")
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}
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System(taxamo, "Taxamo", "Calculates local tax (for EU B2B customers) and acts as a front-end for Braintree Payments.")
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System(braintree, "Braintree Payments", "Processes credit card payments on behalf of Widgets Limited.")
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System(post, "Jersey Post", "Calculates worldwide shipping costs for packages.")
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Rel_R(customer, csa, "Asks questions to", "Telephone")
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Rel_R(customer, ecommerce, "Places orders for widgets using")
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Rel(csa, ecommerce, "Looks up order information using")
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Rel_R(ecommerce, fulfilment, "Sends order information to")
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Rel_D(fulfilment, post, "Gets shipping charges from")
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Rel_D(ecommerce, taxamo, "Delegates credit card processing to")
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Rel_L(taxamo, braintree, "Uses for credit card processing")
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Lay_D(customer, braintree)
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@enduml
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