These are a sequence of assignments to the context variables. They are (performed/done/executed/applied/…) when the conditions are met.
Which of the verbs above is appropriate? Sometimes I use “perform” instead of “done” to make the sentence more formal! Am I right?
The common meanings and collocations found in dictionary or google are most around task assignments, school assignments… with verbs like give, get, receive, take on, carry out, do, write, complete and less about my purpose.
Assignment here is an activity derived from a verb (assign) rather a noun like “class assignments”. Such activities may take “perform” or “do”, “make” or similar verbs, but another solution is to use them as a verb with their arguments. Then I rephrased the sentence as:
It is a sequence of assignments to the context variables. The variables are assigned when the conditions are met.