In its simplest sense, decision-making is the act of choosing between two or more courses of action.
In the wider process of problem-solving, decision-making involves choosing between possible solutions to a problem. Decisions can be made through either an intuitive or reasoned process, or a combination of the two.
It is important to differentiate between problem solving, or problem analysis, and decision-making. Problem solving is the process of investigating the given information and finding all possible solutions through invention or discovery. Traditionally, it is argued that problem solving is a step towards decision making, so that the information gathered in that process may be used towards decision-making.