Whose Redis is this on the diagram and how does the situation differ when logistics writes to 'our' Redis from what you drew?

In the Redis diagram, it can be represented as a separate service or cache belonging to a specific part of the system. If logistics writes to "our" Redis, it means they are using a shared Redis that is controlled and maintained by our team or service.

Differences in the situation:

• "Our" Redis — centralized, with specific security settings, data schema, and SLA. We control the data, can optimize performance, and ensure consistency.
• Redis on the diagram — can be external or belong to another service, with different access policies and capabilities. In this case, logistics writes to someone else's Redis, and we cannot directly influence its state.

Thus, when logistics writes to "our" Redis, we have full control over the data and infrastructure, which simplifies integration and support. If Redis is on the diagram — it is an external component, and interaction requires additional agreements and may be less reliable.