This is an ER diagram of a cinema ticket booking system online. It displays all of the visual components of database tables as well as the relationship between entities. There are several approaches to creating an ER diagram for an online movie ticket booking system. Among different ways of designing a movie ticket booking system, an Entity Relationship diagram may be used to specify which endpoints and entities are required, from the consumer through the prospective email database to the ticket issuing system. If you don't know how to quickly build a movie ticket booking system, feel free to modify this template and create your own use case diagram in EdrawMax.