Each line in a sequence diagram consists of two columns (i.e. entities), an arrow (i.e. direction of flow), and a message. The two columns are separated by the
> arrow and the message is prepended with the
Here is an example:
Web App > DB: Start transaction
Here are the types of arrows:
Each line is parsed in sequential order from top to bottom and rendered in the diagram the same way.
Column names are required to be unique. If a line refers to a column name that hasn't been used in prior lines, a new column will be created.
Updated 2 months ago