Preservation refers to the set of activities that aims to prolong the life of a record and relevant metadata, or enhance its value, or improve access to it through non-interventive means. This includes actions taken to influence records creators prior to selection and acquisition. It should be distinguished from conservation-restoration of cultural heritage, which refers to the treatment and repair of individual items to slow decay or restore them to a usable state. Conservation is occasionally used interchangeably with preservation, particularly outside the professional literature.