Tool: Influence / Impact (Power–Interest) Matrix
When: Right after you’ve identified your initial list of stakeholders but before your first all‑hands or kickoff workshop.
Why: Ensures you’re not “spraying and praying” with your time—focus on the few who can make or break your product.
Tool: RACI Matrix
When: As you finalise scope, timelines and high‑level milestones (roadmap sign‑off, budget approval).
Why: Eliminates confusion over who “owns” each key deliverable or decision—critical for hitting deadlines.
Tool: Stakeholder Engagement Assessment Matrix
When: At the end of each sprint, quarter or major milestone—ideally before your retrospective or steering‑committee meeting.
Why: Measures your engagement health‑check so you can proactively plug gaps (e.g. schedule a workshop, book 1:1s).
Tools: Re‑run Stakeholder Engagement Assessment Matrix
When: After launch stabilisation (e.g. 1–2 sprints post‑release) and at major quarterly reviews.
Why: Validates you delivered on promises, captures learnings, and resets for the next cycle.