Change Impact Assessment

A change impact assessment answers one question in detail: what will be different, and for whom? It compares how work is done today with how it will be done after the change and records each difference for each group of people affected.

The result is not a financial forecast or a risk register. It is a people-centered picture showing where the change lands lightly and where it transforms someone's daily work. That picture is the evidence base for what a change manager plans next: who to involve, what to communicate, what training to design and where resistance is likely.

A change impact assessment therefore turns "this affects everyone" into a specific list of changes that can be planned for.

A thorough assessment looks beyond the technology. Typical areas are:

• Processes: which activities start, stop or change, and in what order.
• Systems and tools: what people use to do the work.
• Roles and job content: new tasks, removed tasks, changed responsibilities.
• Skills and knowledge: what people must learn or will no longer use.
• Structure: reporting lines, team boundaries, headcount.
• Location and working patterns: where and when people work.
• Behaviors: what people are expected to do differently day to day.
• Culture: the values and norms the change relies on or challenges.

Behaviors and culture are the easiest to miss, yet they often decide whether the change sticks.

A change impact assessment that covers only systems and processes understates what people will actually experience.

1. Describe the current and future states in enough detail to compare them.
2. Identify the affected groups, defined by how the change touches them (for example, by role) rather than by department alone.
3. Record each impact as a move from the current to the future state, for each group and each area.
4. Rate the size of each impact on a simple scale and note when it will be felt.
5. Check the findings with people from each group, who often spot what the project team missed.
6. Turn the findings into actions for communication, training and support.
7. Revisit the assessment as the design evolves.

Results are often summarized per group in an impact profile, whose headings vary by method.

A change impact assessment is therefore an iterative analysis, not a one-off form.

The 7-S framework, described by Robert Waterman, Tom Peters and Julien Phillips, treats an organization as seven connected elements: strategy, structure, systems, shared values, style, staff and skills. Because the elements are interdependent, a change aimed at one of them usually moves others.

Used as a checklist, 7-S widens the view. At Harbourside Council, a new online permit system changes systems; the other elements show more:

• Skills: officers need to handle cases digitally.
• Staff: fewer counter roles, more back-office case work.
• Structure: a new team to manage the online queue.
• Style: managers supervise work they can no longer see at the counter.
• Shared values: a move from face-to-face service toward self-service.

The McKinsey 7-S framework thus helps a change impact assessment find knock-on impacts.

The same change lands differently on each group. At Brightwater Health, electronic prescribing affects four groups in very different ways:

An organization-wide average would rate this change "medium" and hide that ward clerks lose part of their role.

A change impact assessment is therefore most useful when its findings are broken down by the people who will live with them.

• Starting too late, after the design is fixed and nothing can be adjusted.
• Assessing technology only, and missing roles, behaviors and culture.
• Working without the people affected, so informal tasks go unrecorded.
• Treating impact as resistance: a heavy impact does not mean people will oppose the change, and a light one does not mean they will welcome it.
• Ignoring other changes hitting the same groups at the same time.

A change impact assessment avoids these mistakes when it starts early, involves the affected groups and is updated as the change takes shape.