Flowchart
8/29/2026
C4 container diagram of an internet banking system showing how customers use a single-page web app or mobile app, which connect through a web server and API application to a database, email system, and mainframe banking platform.
c4 modelcontainer diagraminternet bankingweb applicationmobile appsystem architecture
ER Diagram
9/6/2026
Entity-relationship diagram for a hotel reservation system showing guests, hotels, rooms, reservations, payments, services, reviews, and the join table used to attach multiple services to a reservation.
entity relationship diagramhotel reservation systemreservationsroomspaymentsdatabase design
Class Diagram
9/6/2026
Class diagram of an airline reservation system showing how passengers make bookings for flights, receive tickets, choose seats, and submit payments. It also connects flights to airports, aircraft, and the airline that operates them.
class diagramairline reservationbooking systemflight managementticketingpayments