You should because otherwise they will resist it een if it benefits them. People need to be involved in any change if it affects them. Look up Kotters' 8-step model for change.
dont no
dont no
dont no
If revising your work plans effects other people then it is only reasonable to let them know.
Giving sufficient notice, on a personal level, shows respect and good manners. On a professional level it might be required by law, and it generally prevents lawsuits.
Aside from common courtesy, it is possible that separate activities or further work may depend on your completing or fulfilling yours. The realities of scheduling mean that some things need to be planned in advance, and may rely on what you do or don't do.
it means to change
The suffix for "revise" is "-ise," which can be added to the base word "rev" to change its meaning to "revise."
you change the hypothesis.
Revise
Edit
"review" means to look over. "Revise" means to change. --------- When students in North America prepare for examinations they 'review', in Britain they 'revise'.