So, when staff or analysts are designing a new system, one or more sequence diagrams are used to showcase how this system will behave. However, one of its primary use cases is in requirements documents for future systems implementation. Teams can use this diagram to analyze existing work systems. The diagram for the second example does not necessarily need to have an 'actor.' In the first scenario, the customer is the 'actor' or external entity that interacts with the elements of the diagram. You can use a system sequence diagram to map the customer journey through an eCommerce store or to get a high-level overview of specific business functions. It is a type of interaction diagram, and it’s also referred to as a UML sequence diagram. What is a sequence diagram?Ī sequence diagram is a Unified Modeling Language (UML) diagram that showcases the interactions between the objects in a system in sequential order. Keep reading to learn more about our UML Sequence Diagram Template.

Teams use the diagram to get a better overview of their work processes. A sequence diagram is a tool that depicts object interaction in a system in sequential order.

How to draw sequence diagram online