If they are stakeholders (e.g. devs that will be downstream of the decision), involve them in your decision making. If they are non-stakeholders (e.g. another

If they are stakeholders (e.g. devs that will be downstream of the decision), involve them in your decision making. If they are non-stakeholders (e.g. another dev just poking their nose in), inform them that the decision went through a decision making process and the stakeholders have accepted it.