Integrity is consistency of actions, values, methods, measures, principles, expectations and outcome.
Integrity may be seen as the quality of having a sense of honesty and truthfulness in regard to the motivations for one’s actions.
In context of behavior or morality, integrity is the virtue of basing actions on an internally-consistent framework of principles. This context emphasizes depth of principles and adherence of each level of postulates or axioms to the those it logically relies upon. Ethically, people have integrity to the extent that their actions, methods, measures and beliefs all derive from the same value system.
In the context of accountability, integrity is a measure of willingness to adjust a value system to maintain or improve its consistency when expected results are incongruous with observed outcome.