Organizational change management: five process groups to make adoption stick

What is organizational change management?

Organizational change management, often shortened to OCM, is the discipline that prepares, equips and supports the people affected by a project so that the new process, system or structure is used in daily work. It sits beside project management and shares its calendar, but its subject is adoption.

A project can be delivered on time and still change nothing if the people concerned keep their old habits. OCM deals with that gap through impact analysis, communication, training, coaching of senior leaders and measurement. The practice is now codified: the ACMP publishes the Standard for Change Management©, which is the reference for the CCMP exam. Our own walkthrough of it is in the ACMP Standard explained.

The five process groups of the Standard

The Standard organises the work into five process groups: evaluate change impact and organisational readiness, formulate the change management strategy, develop the change management plan, execute the plan, and close the change management effort.

They read as a sequence, but real programmes loop back. A readiness survey in the first group often reshapes the strategy, and measurements taken while executing the plan can reopen the plan itself. We find it easier to treat the groups as a checklist of questions: who is affected, how much, what is the approach, who does what and when, how are we doing, and when do we hand over. The guide to change management vocabulary defines the terms that appear in each group.

Roles in a change programme

Four roles carry most programmes: the executive owner, the change manager, the change practitioner and the project manager. Titles differ from one company to the next, but the responsibilities rarely do.

• The executive owner holds the authority and the budget, and speaks for the change to senior colleagues.
• The change manager owns the strategy and the plan for the human side of the project.
• The change practitioner carries out parts of the plan, such as communications, training or readiness checks.
• The project manager delivers the technical scope and coordinates the calendar with the change team.

In small organisations one person often holds two of these roles. That is workable as long as someone has the time to talk to the people affected.

The role most often under-resourced is the change practitioner. Project plans budget for developers and testers, then assume that communication will happen in the margins. In our experience, naming the practitioner and giving that person a share of the calendar from the first week prevents most of the late surprises, such as a team learning about the change from a rumour.

The five deliverables of a change manager

A change manager typically produces five deliverables: an impact assessment, a readiness assessment, a change management plan, a communications plan and a measurement framework. Each one answers a question the executive owner will ask sooner or later.

The impact assessment lists who is affected and how deeply. The readiness assessment tests whether the organisation can absorb the change now. The plan sets out actions and owners, the communications plan puts messages in the right order, and the measurement framework shows whether adoption is happening. Most teams add a stakeholder map and a reinforcement plan.

Measurement deserves a word of its own. Adoption can be tracked through usage data, through the number of people trained before go-live and through short surveys after it. The right indicators depend on the project, so we choose two or three at the planning stage and review them at fixed dates rather than collecting everything available.

Models that sit alongside the Standard

Four models are cited most often: Kotter’s eight steps, Prosci’s ADKAR®, Lewin’s unfreeze, change, refreeze, and the Bridges transition model. They are models, and none of them is a certification.

Kotter’s steps are described on the Kotter methodology page, and ADKAR (awareness, desire, knowledge, ability, reinforcement) on the Prosci ADKAR page. The Standard is broader than any one of them and does not force a choice. We compare their strengths in the comparison of change management methodologies.

A fictional programme, from first workshop to handover

Take a fictional insurer, Northgate Mutual, moving 400 claims handlers to a new case system. The example is invented, and it shows how the deliverables and process groups meet.

In the first month Maya, the change manager, runs impact interviews and finds that two teams lose a daily report they rely on. That finding goes into the strategy, which names the executive owner as the voice for the first announcement. The plan then schedules training before the cut-over, not after. During execution she tracks how many handlers log in each week, and she reopens the communication plan when one team lags. At handover she passes the dashboard to the operations lead, who keeps it going.

Which credential matches which role?

The CCMP suits change managers and practitioners with at least three years of experience and a degree, or five years without one, because the ACMP requires 4,200 or 7,000 hours of experience plus 21 hours of training (ACMP eligibility page, 7 October 2026).

The MCMP follows for senior practitioners who mentor others, with 8,400 hours and an active CCMP. Executive owners and project managers who only need the vocabulary can start with a shorter course. This site follows Leanova Academy, an official ACMP QEP and a training provider, not the ACMP. On 7 October 2026 its 21-hour CCMP exam prep course cost US$595, and its LCeX-Professional course also counted 21 QEP hours at US$595, with no prerequisite and a certificate of completion plus a digital badge. Neither course awards the CCMP, which the ACMP grants after its exam. To see every option side by side, read the comparison of change management certifications.

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