CRUD is not the enemy. It is often the smallest correct design for a profile, a team setting, or a simple lookup table.
The trouble starts when a changed object hides a business action. An API that receives an updated inventory DTO can see that Status became Deactivated, but it still has to infer why that happened, whether a reason is required, who is allowed to do it, and what should happen next.
That is where Command-Query Separation helps. A query returns information. A command asks the system to change something. DeactivateInventoryItem(id, reason) says more than a generic update ever can.
This does not require two databases, a message broker, or microservices. It starts with making the request visible where the rules belong.
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