These four platform layers connect supported verification, change impact and evidence lineage. Explore the wider E-stack for qualified computational reuse, action authority and runtime assurance.
Each layer has one job. Select a layer to see its boundary, output and practical starting point.
ONE RECORD
Every answer can be routed, signed and checked later.
DTL11 implementations
Is this output or decision allowed?
Checks a decision against the rule that applies to it and gives a straight answer: yes, no, or send it to a person. If it cannot tell, it says so and stops rather than guessing.
Sits between a decision and anything that moves in the real world — machinery, infrastructure, equipment. If the check cannot complete, the action does not happen.
The underlying evidence changed. What does that affect?
When a source you relied on is corrected or withdrawn, separates the work that is still sound from the work that is not, and recalculates whatever can be recalculated.