Software quality is tested at the checkout.

At the checkout, operators do not have time to think about software architecture. They want an item registered, the right price, a completed payment and a receipt on time. The gap between that simple expectation and the complexity behind it is where the engineering lives.

Connections matter more than feature counts

Sales, stock, accounting, branches, customers and devices can each work well in isolation. The real value appears when a change in one updates the others correctly.

Local services are a product decision

Different devices and connection conditions require deliberate local operations. Each part of the system needs clear ownership of its data and a defined way to coordinate when conditions change.

Daily work is the measure

Developing CERP and hospitality products has reinforced a practical lesson: a smooth sale, reliable printing and correct stock are worth more than a long list of disconnected features.