Integrity is consistency of actions, values, methods, measures and principles. Depth and breadth of a value system may also be significant factors due to their congruence with a wider range of observations. People are said to have integrity to the extent that they behave according to the values, beliefs and principles they claim to hold. One's value system may evolve over time while retaining integrity if inconsistencies are accounted for and resolved.
Hypocrisy results when one part of a value system is demonstrably at odds with another and the person or group of people holding those values fails to account for the discrepancy. Hypocrisy is considered to be the opposite of integrity.