What is a Decision Stack?
A Decision Stack is a five-layer strategic artefact created by Martin Eriksson. It connects your high-level vision to the day-to-day decisions your team makes, giving leaders a single structured view of their strategy. Luna uses this framework as the foundation for everything it builds.
The five layers
The Decision Stack consists of five connected layers, each building on the one above it:
Vision
A single sentence that describes where the organisation is going. It aligns the room and provides the north star for every decision below.
Strategy
The coherent set of choices that explain how you will reach the vision. Strategy is not a list of goals — it is a theory of how you will win.
Objectives
Measurable outcomes, each with one metric that matters and an aspiration. Objectives make strategy concrete and testable.
Opportunities
Testable hypotheses with belief statements and success signals. Opportunities are what you will actually try in order to move the objectives.
Principles
Operating guidelines expressed as "X even over Y" — the decisions that reveal your real priorities when trade-offs arise.
Why it works
Most strategy fails not because the thinking is bad, but because it is scattered. The Decision Stack forces coherence by connecting every layer to the ones above and below it. When a principle conflicts with an objective, you know something needs to change.