Understanding the Real CI Flow of Chromium

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Hello everyone,
I'm currently researching the CI/CD flow in Chromium. Based on my understanding, the workflow follows the sequence diagram I’ve outlined below.

I have a few questions regarding LUCI-Go components:

• Regarding LUCI Analysis, I’m not sure whether it just retrieves data from ResultDB and CAS for analysis purposes.
• Additionally, I’d like to confirm whether the final part of this flow (from ResultDB → LUCI Analysis → Milo UI) is accurate as depicted in the diagram. Is this the correct way Chromium integrates analysis results into the UI?  

If my understanding is incorrect, I would greatly appreciate any clarification. Thank you very much!