The core idea
Organisation development is a planned approach to improving how an organisation functions, informed by behavioural science and attention to relationships and systems. Armstrong and Taylor describe its historical roots and evolving practice. It overlaps with change management, but places particular emphasis on diagnosis, involvement and learning rather than simply implementing a predetermined solution.
Source and attribution [1]Using it in practice
Agree the problem with the people who experience it and those responsible for results. Gather several kinds of evidence: operational patterns, interviews, observation and employee feedback. Develop a working diagnosis and invite challenge. Choose a bounded intervention, explain the expected mechanism, then review what changed and what did not. Treat unexpected findings as a reason to adapt.
An example, not a reported case
Worked example · illustrative
A team requests a resilience workshop after rising absence. A joint diagnosis finds inconsistent priorities and repeated late changes to shifts. Managers and employees trial an earlier planning cut-off and a clearer escalation process. The team evaluates predictability and workload as well as absence, rather than attributing all strain to individual coping.
What to watch for
Participation can become cosmetic if the decision is already fixed. Be explicit about what employees can influence and what constraints exist. A workshop may help a team communicate, but it cannot compensate for unsafe staffing or incentives that reward the problem.
Use action research as a learning discipline
Move between diagnosis, action and evaluation rather than treating the initial assessment as final. Record assumptions and competing explanations. The process should make it easier to correct a mistaken diagnosis without blaming the people who supplied evidence.
Choose the right level of intervention
A skill gap may call for development; a coordination problem may need process redesign; conflicting priorities may require senior decisions. Match the action to the mechanism. Do not use a fashionable culture programme as a universal response.
Build internal capability
Involve people who will maintain the change, transfer facilitation and evaluation skills, and agree a review rhythm. External expertise can support the work, but sustained improvement depends on local ownership and the ability to detect new problems.
Take it into your next conversation
Three useful questions.
- What evidence supports our diagnosis?
- Who can meaningfully influence the change?
- Are we addressing the system or only its symptoms?
Related terms
Go to the evidence
Sources & attribution
Further reading: Michael Armstrong with Stephen Taylor (2023), Armstrong’s Handbook of Human Resource Management Practice, 16th edition, chapters 21, 75. Edition & reading notes ↗
[1] Armstrong & Taylor (2023), 16th edition, chapters 21, 75 — reading notes ↗
The core idea is an original summary of the cited work. Application notes, examples and sketches are our interpretations, not quotations or reproductions of the authors’ figures. Publisher records may require access to read the full original work.
Original teaching guide informed by the cited handbook chapters. The four-step sketch is an ADM HR application aid, not a named Armstrong model. Examples are invented. The 2023 book is not used to establish current employment law.
Published 2026-09-25 · Reviewed 2026-09-25. Editorial approach