Stakeholder Map vs RACI Matrix: what's the difference and when to use each

A stakeholder map is about interest and influence. It tells you who cares about the outcome, how much power they have to affect it, and how much attention they need from you as a result. Someone with high influence and high interest gets managed closely. Someone with low interest and low influence gets kept informed and nothing more.

You build a stakeholder map early, before the work is scoped and before anyone has been assigned a task. It is a picture of the landscape you are operating in, not a record of what anyone is responsible for delivering.

Take a client website redesign. The Marketing Director wants a say in most decisions and will answer for the result, so they sit top right on the grid below: high influence, high interest, managed closely with real involvement in decisions, not just a status update. The Finance Director mostly cares that the budget holds, not the design choices, so they sit bottom right: high influence, low interest, kept satisfied with a short update when spend or timeline shifts.

The support team who will field customer questions about the new site have little say in how it gets built but a real stake in getting it right, so they sit top left: low influence, high interest, kept informed as the project moves. General staff who will simply use the finished site sit bottom left: low influence, low interest, worth a mention when it launches and nothing more before that.

A RACI matrix is about accountability. For every decision or deliverable, it names who is Responsible for doing the work, who is Accountable for the outcome, who needs to be Consulted before a decision is made, and who simply needs to be Informed once it has happened.

You build a RACI matrix once the work is scoped, because you cannot assign responsibility for a deliverable that does not exist yet. It answers who owns a defined piece of work. It says nothing about who matters politically or how engaged someone needs to be beyond their assigned role.

Once the website redesign is scoped, the same people show up again, but the question asked of them changes completely. It is no longer how much attention they need. It is what they are on the hook for, deliverable by deliverable.

The mistake runs in both directions. Some PMs try to use a RACI matrix to work out who to manage carefully, but a RACI matrix was never built to capture interest or influence, so it tells you nothing about who might quietly derail a project because nobody kept them warm.

Others try to use a stakeholder map to assign task ownership, and it falls apart the same way. A stakeholder map has no concept of Responsible or Accountable. It was built to describe a landscape, not to allocate work.

Build the stakeholder map first, while you are still working out who is in the room and what they care about. Once the scope is agreed and the work is broken down, build the RACI matrix on top of it to assign accountability for each deliverable.

Keep both documents going. They are not competing for the same job. The stakeholder map tells you how to engage people. The RACI matrix tells you who owns what. A project that only has one of these is missing half the picture.