Background: Dominance Rule
- Early ChangePlan clients were onboarded into the system using logic called the ‘Dominance rule' to calculate the color of the cells in our impact heatmaps - see this support article for more details
The Weighted Impact Score is an improved approach
- This logic can be activated by company admins via the settings area
How Weighted Impact Score is calculated
For each time period, for each audience group:
- Find the total number of low, medium & high impacts that the audience group is attached to.
- Apply a ‘weighting coefficient’ to the low, medium and high impact numbers.
- Calculate the total of the weighted impact numbers.
- Determine cell coloring by comparing the number with a Color Threshold Table to ensure that the more aggregated views are not too heavily biased towards orange and red
What it will look like
In the impacts heatmap below:
- the coloring in each cell represents the weighted level of change impacts that audience group will experience a three month period.
- the number in each cell is the number of change impacts affecting that audience in each time period
Weighting low, medium & high impact scores
Admins will be able to weight low, medium and high level impacts differently so they have a different effect on the heatmap coloring. This weighting will be admin configurable in the settings page.
Default:
Magnitude | Score | ㅤ | ㅤ |
Low | 1 (fixed) | ㅤ | ㅤ |
Medium | 5 | ㅤ | ㅤ |
High | 10 | ㅤ | ㅤ |
Walkthrough of calculating the weighted impact score
The weighted impact score should be calculated for each cell in the heatmap. This should be determined by a sum of the weighted impact scores in that time period.
Step 1: Find the total number of low, medium & high impacts
We see the number of low, medium and high impacts in each group per time period:
Step 2: Apply the weighting coefficient to medium & high impacts numbers
Default coefficients are Medium: 5, High: 10.
Step 3: Calculate the total of the weighted impact numbers
The value in each cell is the sum of the weighted number of low, medium and high impacts:
Step 4: To determine the color for each cell, compare the value to the Color Threshold Table and apply the appropriate color
These are configurable by admins. Below are the default thresholds:
View | Green | Amber | Red |
Level 1 | 1 | 20 | 40 |
Level 2 | 1 | 18 | 35 |
Level 3 | 1 | 15 | 30 |
Level 4 | 1 | 13 | 25 |
Level 5 | 1 | 10 | 20 |
Level 6 | 1 | 8 | 15 |
Level 7 | 1 | 5 | 10 |
Level 8 | 1 | 5 | 10 |
Level 9 | 1 | 5 | 10 |
Level 10 | 1 | 5 | 10 |
Level 11 | 1 | 5 | 10 |
Applying these thresholds, the heatmap looks like this:
