Can I generate a sequence diagram from an existing architecture in system composer?

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SANDEEP VIKRAM
SANDEEP VIKRAM 2025-6-4
评论： Nithin 2025-6-10
I have a SW architecture with different interacting modules.
Right now, i can create the sequence diagram manually by dragging and dropping each module in ' Sequence Diagrams'
But I need to add the interacting ports manually.
Is there a way to create the sequence diagram with the interacting ports programmatically?

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Nithin
Nithin 2025-6-9
Hi @SANDEEP VIKRAM,
It is possible to programmatically create sequence diagrams, add lifelines (modules) and interactions (messages or ports) using the "System Composer API". Refer to the following MATLAB documentation which explains the process of creating sequence diagram programmatically in detail: https://www.mathworks.com/help/systemcomposer/ug/create-sequence-diagrams-programmatically.html
You can also refer to the following MATLAB documentation to know more about the eacheach function used:
Hope this answers your query.
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Les Beckham
Les Beckham 2025-6-9
Based on those links, it looks like the ability to add Lifelines, Fragments, and Messages is available in 2024b, and Duration Constraints was added in 2025a.
Nithin
Nithin 2025-6-10
@SANDEEP VIKRAM, the feature of building sequence diagrams using programmatic interfaces was introduced in MATLAB R2024b. There is no documented way to do the same in R2023b.

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