Question

the methodology for making improvements to an already existing process is a

Answer 1

amendment is the answer.
I hope you are asking for this answer....

Answer 2

Answer:

The methodology of making changes in the improvements to an already existing process can be termed as an amendment. The reason for this answer is because there are many processes which are needed to be changed, and when they get changed during the maintenance activity, then it is said that there some amendments made.

Explanation:

Amendments are very necessary for any work because with the help of the amendment there are many processes where the initiative of betterment can be done.