After the stakeholder analysis is complete, a best practice is to put stakeholders into a matrix to develop a communications management strategy. A simple but useful approach is to set it up to show:

Authority and interest is not the standard axis combination recommended by PMI for the stakeholder communications matrix; authority and influence are often conflated but influence is the preferred dimension.

Authority and involvement do not represent the standard two-axis framework used in PMI's stakeholder communications management approach, making this an incorrect pairing.

Influence and impact are closely related and overlapping concepts that would produce a redundant matrix; the standard grid pairs influence with interest to create meaningfully distinct dimensions for segmenting stakeholders.

The Influence/Interest grid is the standard PMI-recommended approach for stakeholder analysis, where influence measures a stakeholder's ability to affect portfolio decisions and outcomes, while interest measures how much they are concerned with the portfolio's results. Plotting stakeholders across these two dimensions enables the portfolio manager to tailor communication strategies - such as managing closely, keeping informed, monitoring, or keeping satisfied - based on each quadrant's characteristics.