MyMapUser authentication flow with JWT tokens and refresh logic...
01
List participants and messages
Name the people, clients, services, and stores involved. Provide the order of calls and the responses you want represented.
Sequence Diagram Maker
Describe the actors and message flows in your system and AI builds a sequence diagram — lifelines, arrows, activation boxes, and labels, all in the right order.
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Templates made with this tool
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How to make a sequence diagram
No template to fill in and no drawing. You talk; the canvas keeps up.
02
Add branches and repeated work
Describe success, failure, timeout, and retry behavior. Specify which messages are asynchronous when that distinction matters.
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03
Trace each path
Read from top to bottom and check the sender, receiver, and outcome of every message. Ask for missing returns or alternative paths.
What does a sequence diagram explain?
A sequence diagram shows interactions between participants over an ordered progression. It is useful for answering who sends a message, who handles it, and what happens before the next interaction.
When to use an interaction view
Use one for API documentation, service handoffs, or reviewing a request lifecycle. The login example illustrates a simplified sequence between a user, browser, backend, provider, and database; it is not a complete security design.
Rules for clear message sequences
- Use consistent participant names. Each lifeline should represent a clearly defined actor or component.
- Keep messages in order. Arrange interactions according to the scenario being explained.
- Label intent and result. Short message names should reveal the request or returned information.
- Show alternatives explicitly. Do not hide rejected requests or timeouts inside a success-only narrative.
- Limit the scope. Split a long system lifecycle into focused sequences when the diagram becomes difficult to trace.
How MyMap drafts interactions
MyMap translates your scenario into participants and message arrows on the canvas. Ask it to add an alternate outcome, clarify an asynchronous handoff, or simplify the sequence for a documentation reader.
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Whole map or one frame. PDF and clean PNG on Pro.
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Ask for slides from this map and present frame by frame.
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A read-only link for anyone; they can copy it to their own canvas.
Keep editing
Every map stays on your canvas; come back and ask for more.
Common questions
Is a sequence diagram the same as a flowchart?
No. A sequence diagram centers on messages between participants. A flowchart centers on the progression of actions and decisions.
Does the login example define a complete implementation?
No. It is a simplified interaction overview. Actual authentication requirements, validation, and failure handling need their own implementation review.
Can I include retries or conditional paths?
Yes. Describe when the alternative occurs, which messages repeat, and how the path ends. Then review the generated sequence against the intended behavior.
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A sequence diagram mapping the full OAuth 2.0 login flow — from user click through token exchange, session creation, and dashboard redirect.
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Sequence Diagram Maker
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