Heuristic ( /hjʉˈrɪstɨk/; or /hyoo-ris-tik/; Greek: "Εὑρίσκω", "find" or "discover") refers to experience-based techniques for problem solving, learning, and discovery. Where the exhaustive search is impractical, heuristic methods are used to speed up the process of finding a satisfactory solution. Examples of this method include using a rule of thumb, an educated guess, an intuitive judgment, or common sense.
In more precise terms, heuristics are strategies using readily accessible, though loosely applicable, information to control problem solving in human beings and machines.
Read more about Heuristic: Example, Psychology, Philosophy, Law, Mass Communication, Computer Science, Human-computer Interaction, Engineering