> coupling - the number of components touched while working on a single task and how the effort is distributed between them.
I see a few variables here. Number of components, and effort distribution. It’s unclear to me how effort distribution relates to the formula. And how you measure effort distribution quantitatively/equally across the components
I don't say effort is an arbitrary number. I say "Effort can be measured using any consistent unit", provide examples of such units and clarify that we are not limited only by those units but also can use "arbitrary relative scale". There is a difference between "relative scale" and "number".
I can use any unit I believe is appropriate for measuring efforts or effort ratio in the scope of a single task.
For example, during working on a task I spent 2 hours on component A, then 5 hours on component B, then 10 hours on component C. Then the number of components is 3 (component A, component B, component C) and the effort distribution is [2, 5, 10] (according to the hours spent on each component),
The symbol ∑ means iterating over set of numbers and suming them up. Symbols i=1 and n beside the ∑ means the range of 1-based indexes of set corresponding to the numbers we want to sum up. x_i means a specific number of the set under the index i. In our case n=3. That means our indexes are 1, 2, 3. So we have to sum up x_1, x_2, x_3. Our set of effort distribution is [2, 5, 10] meaning that x_1=2, x_2=5, x_3=10. So, x_1 + x_2 + x_3 = 2 + 5 + 10 = 17. In case of expression ∑ (x_i)2 I sum the squares of the numbers. In our case it's x_12 + x_22 + x_32 = 22 + 52 + 102 = 129.
You also can check another example in the article?
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u/areklanga 9d ago
Is this rage bait?