Clear boundaries, sequences, interfaces and acceptance criteria turn intent into work that can be delivered.
Describe behavior, not only points
A point list identifies data, but it does not explain when equipment should start, how loops respond or what happens during a fault.
An implementable design combines points, sequences, network boundaries and responsibility for each interface.
Make verification part of the design
Acceptance criteria should be written early enough to influence configuration and commissioning. The result is easier to test, hand over and operate.