sequence diagram online food ordering system

Creately diagrams can be exported and added to Word, PPT (powerpoint), Excel, Visio or any other document. You can edit this template and create your own diagram. Lifelines may begin with a labeled rectangle shape or an actor symbol. Use Creately’s easy online diagram editor to edit this diagram, collaborate with others and export results to multiple image formats. A dashed line, known as a lifeline, represents events in an SSD. Within a SSD, this shape models the system as a black box (a system with inner workings that are not immediately visible).Īctors - shown by stick figures, actors are entities that interact with the system, and yet are external to it.Įvents - the system events that the actors generate in the sequence. Objects - this box shape with an underlined title represents a class, or object, in UML. The customer should have the receipt that calculation system generates for them. Most elements we cover in use case diagrams remain in use throughout a system sequence diagram, including: Use Case No: 6 Use Case Name: Payment Actors: Customer Description: This use case allow customer to pay for food. Use case diagrams are simply another diagram type which represents a user's interaction with the system. Standard sequence diagrams show the progression of events over a certain amount of time, while system sequence diagrams go a step further and present sequences for specific use cases.

This language provides a toolkit for diagram creators to make and read diagrams that are comprehensible regardless of location or industry. System sequence diagrams, also known as SSD, are actually a sub-type of sequence diagrams, whose style and notation is dictated by the Unified Modeling Language.

Sequence diagram online food ordering system