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How the Dominance Rule Works for Impact Heatmap Logic

How the Dominance Rule Works

The system looks at all the impact levels (High, Medium, Low) within a cell and applies the following logic:

1️⃣ If one impact level makes up at least 33% (one-third) of the total impacts, the cell takes that color.
2️⃣ If no single level reaches 33%, the system defaults to the highest impact present in the cell.

Examples of How Colors Are Determined

Impact Levels in a Cell
Total Impacts
Calculation
Final Color
1 High + 2 Medium
3
High (33%) → Meets threshold
🔴 High
1 Medium + 2 Low
3
Medium (33%) → Meets threshold
🟠 Medium
1 Medium + 3 Low
4
Low (75%) dominates
🟢 Low
2 High + 2 Medium + 1 Low
5
High (40%) is the strongest
🔴 High
1 High + 1 Medium + 1 Low
3
No level reaches 33%, default to highest
🔴 High
0 High + 3 Medium + 2 Low
5
Medium (60%) dominates
🟠 Medium

Why This Rule?

  • Ensures major impacts aren’t overshadowed by minor ones.
  • Helps identify critical areas requiring attention.
  • Provides a clear and fair way to assess change saturation.
📌 Key Takeaway:
If an impact level is strong enough (at least one-third of total impacts), it determines the color. Otherwise, the highest impact level present sets the color.