Consider a production Laravel application that needs to use Transaction behavior. How should the developer approach the requirement, and what should be checked before releasing it?

Consider a production Laravel application that needs to use Transaction behavior. How should the developer approach the requirement, and what should be checked before releasing it? Assume the system receives real users, real data and concurrent requests. The correct approach is to identify where transaction behavior belongs, define its inputs and outputs, protect the boundary with validation and authorization where applicable, consider database and performance implications, and add automated tests for the expected behavior. Concept-specific reasoning: Tests can verify that multi-step failures leave the expected database state. A useful implementation pattern is: public function test_order_has_items(): void { $order = Order::factory() ->has(OrderItem::factory()->count(3), 'items') ->create(); $this->assertCount(3, $order->items); }