 When used as a virtue term, ‘integrity’ refers to a quality of a person’s character; however, there are other uses of the term. One may speak of the integrity of a wilderness region or an ecosystem, a computerized database, a defense system, a work of art, and so on. When it is applied to objects, integrity refers to the wholeness, intactness or purity of a thing—meanings that are sometimes carried over when it is applied to people. A wilderness region has integrity when it has not been corrupted by development or by the side-effects of development, when it remains intact as wilderness. A database maintains its integrity as long as it remains uncorrupted by error; a defense system as long as it is not breached. A musical work might be said to have integrity when its musical structure has a certain completeness that is not intruded upon by uncoordinated, unrelated musical ideas; that is, when it possesses a kind of musical wholeness, intactness and purity.