Diagnosing organisational culture means systematically examining the values, norms and behaviours actually at play in a company — as opposed to the values printed on a poster in the lobby. Skip this step, and any attempt to change culture rests on management’s guesswork rather than on how the organisation genuinely operates day to day.
Quick Overview
What you’ll learn from this article:
- Why diagnosis must precede any attempt to change organisational culture
- How the Competing Values Framework (OCAI) works and what it measures
- Which other diagnostic tools complement the survey — interviews, observation, artefact analysis
- A step-by-step plan for running a first culture diagnosis
Who this article is for: HR directors planning a culture change programme, team leads who want to understand the real norms at play in their company, consultants supporting a client’s organisational transformation.
Reading time: 7 minutes
Diagnosing organisational culture: tools and first steps
The most common mistake when attempting to change organisational culture is skipping diagnosis and jumping straight to action — a new values code, team-building workshops, or a restructure. Without understanding what culture actually exists today, it’s hard to judge whether the proposed actions address a real problem or simply replicate one executive’s intuition. The Competing Values Framework by Cameron and Quinn, measured through the OCAI instrument, maps organisational culture along two axes — flexibility versus stability, and internal versus external focus — yielding four culture archetypes: clan, adhocracy, hierarchy, and market. The OCAI survey asks respondents to split one hundred points across four descriptions for six organisational dimensions (e.g. dominant characteristics, management style, organisational glue), which reveals not just the dominant culture type but also the gap between the current and the desired culture.
Diagnostic tools compared
| Tool | What it measures | When to use it |
|---|---|---|
| OCAI survey | Dominant culture type across four archetypes (clan, adhocracy, hierarchy, market) | Starting point for a diagnosis across the whole organisation or a department |
| In-depth interviews | Informal norms, stories, “how work really happens here” | Complements the survey, surfaces nuance invisible in the numbers |
| Artefact analysis | Visible symbols of culture — office layout, meeting rituals, internal communication style | Verifies whether stated values actually show up in daily practice |
| Engagement survey (e.g. Gallup Q12) | Employee engagement level as a side effect of culture | Tracking culture’s effects over time, not culture directly |
None of these tools gives a complete picture on its own. The OCAI survey delivers comparable numeric data but doesn’t explain why employees perceive culture a certain way — that requires in-depth interviews, where respondents describe specific situations rather than merely rating abstract statements.
How to run a first culture diagnosis step by step
- Define the scope of the diagnosis — the whole organisation, one department, or one team — since scale determines which tools you choose and how long data collection takes.
- Run the OCAI survey with a representative group of employees, asking about both the current and the desired culture — the gap between them is a valuable signal on its own.
- Complement the survey with in-depth interviews with 8-12 people from different levels of the organisation, to understand the context behind the numbers.
- Cross-check the results against artefact observation — do rituals, office space and decision-making habits confirm or contradict what the survey showed.
- Present the findings to management with concrete recommendations, before launching any culture-change action — a diagnosis without an action plan ends up as a report in a drawer.
It’s worth remembering that the diagnosis itself already affects the organisation — employees asked about culture start thinking and talking about it, which can itself be a first spark for change, before any formal decision is made. That’s why communicating the results and a concrete action plan afterwards matters so much — silence after data collection is often perceived worse than no diagnosis at all, because it signals that employee input doesn’t actually influence management decisions.
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Frequently Asked Questions (FAQ)
How long does a full organisational culture diagnosis take?
It depends on organisation size and the tools chosen, but a typical diagnosis combining an OCAI survey with in-depth interviews takes three to six weeks — from designing the survey, through collecting responses, to conducting interviews and synthesising results.
Can the HR department run a culture diagnosis on its own?
Yes, if the HR department has experience designing surveys and moderating interviews — the OCAI instrument is publicly available and requires no certification. An external consultant can still add value where employees might hesitate to be candid with their own HR department, especially when diagnosing after a trust crisis.
What if the OCAI results show a large gap between current and desired culture?
That’s a normal, even expected result — current culture rarely matches the desired one perfectly. A large gap signals a priority for a change programme, but it doesn’t by itself tell you how fast or by what methods to pursue that change — that requires further analysis of what’s driving the gap.
Does the culture diagnosis need to be repeated periodically?
Yes — organisational culture shifts with employee turnover, management changes, and events like mergers or crises. Repeating the diagnosis every one to two years shows whether the actions taken are actually moving culture in the intended direction, or whether the organisation is drifting back to its previous patterns.