@startuml !include https://raw.githubusercontent.com/plantuml-stdlib/C4-PlantUML/master/C4_Context.puml ' uncomment the following line and comment the first to use locally ' !include C4_Context.puml LAYOUT_WITH_LEGEND() title System Context diagram for Internet Banking System Person(customer, "Personal Banking Customer", "A customer of the bank, with personal bank accounts.") System(banking_system, "Internet Banking System", "Allows customers to view information about their bank accounts, and make payments.") System_Ext(mail_system, "E-mail system", "The internal Microsoft Exchange e-mail system.") System_Ext(mainframe, "Mainframe Banking System", "Stores all of the core banking information about customers, accounts, transactions, etc.") Rel(customer, banking_system, "Uses") Rel_Back(customer, mail_system, "Sends e-mails to") Rel_Neighbor(banking_system, mail_system, "Sends e-mails", "SMTP") Rel(banking_system, mainframe, "Uses") @enduml Submit amiga aws-orange black-knight bluegray blueprint cerulean-outline cerulean crt-amber crt-green cyborg-outline cyborg hacker lightgray mars materia-outline materia metal mimeograph minty plain reddress-darkblue reddress-darkgreen reddress-darkorange reddress-darkred reddress-lightblue reddress-lightgreen reddress-lightorange reddress-lightred sandstone silver sketchy-outline sketchy spacelab spacelab-white superhero-outline superhero toy united vibrant       🎉 Discover the future PlantUML Web Editor! 🚀  PNG  SVG  ASCII Art