word/phrase request meaning the areas affected by making a particular change

Question

In a company I used to work for, whenever we made changes in a design, no matter how small, we had to fill out a form that had a field titled effectivity which would outline which parts of the project were affected by those changes, so we could determine which tests would have to be repeated.

But I looked up effectivity in several online dictionaries (dictionary.com, oxforddictionaries.com, merriam-webster.com) and they all refer to effective with no additional connotations in line with how my former company was using it.

Is there a word or phrase meaning the areas affected by making a particular change?

Answer 1

Area of effects would describe the areas of the project affected by the changes.

The only definition of the phrase I could find is from role playing games but it has similar meaning.

Area of effect (often referred to as AoE) refers to a specified area in which multiple enemies can be affected (source)

In your context I'd define it to as:

Area of effects (often referred to as AoE) refers to the specific areas of a project which can be affected.

Answer 2

I would use the phrase "concomitant effects". If you look up the phrase online, it finds use in technical fields.

I like it because it highlights the secondary nature of the effects so as to differentiate from the main change.

http://www.dictionary.com/browse/concomitant?s=t