Policies and guidelines need to be established in order to ensure
that quality is high. For this purpose an organization may implement a policy
of incentives to promote contributions and use. Automation helps to count
the number of times a piece of knowledge is used by other members and
assess its relevance. Users can also rate documents in terms of importance and
quality. Documents that are not useful, such as those written in poor style or
containing inaccurate information, should not be kept in the repository.