Schein's iceberg explained practically

1. Artefacts

Office layout, meeting structure, titles, language, dress code, intranet, value posters. Easy to see, nearly impossible to interpret on its own. Two companies with the same open-plan office can have opposite cultures.

2. Espoused values

The strategy, the value set, the leadership principles. They describe ambition. They are not lies, but they are not evidence of behaviour.

3. Basic assumptions

What nobody discusses any more: whether mistakes are dangerous, whether the boss must be asked first, whether time or quality weighs more. They are learned through what has worked, and invisible to those inside them.

Why culture projects strand at level one

Artefacts can change in a quarter. New values can be drafted in a workshop. Basic assumptions change only when people repeatedly experience that the old assumption no longer holds — usually because a decision went against it and that had consequences. This is why many culture initiatives feel decorative: they touch levels one and two, never level three.

How to reach level three

• Describe a concrete situation instead of asking for an opinion. Assumptions are activated by situations, not by concepts.
• Force a choice between two legitimate concerns. Assumptions only become visible when something has to be given up.
• Ask what happens — not what ought to happen. The phrasing decides whether you measure level two or level three.
• Repeat under higher pressure. Assumptions hold when it is easy and reveal themselves when it is hard.