Audit Trail and Node
Authentication (ATNA) : IHE-ATNA Integration Profile establishes security measures
which, together with the Security Policy and Procedures,
provide patient information confidentiality, data integrity and
user accountability. The Audit Trail and Node Authentication
(ATNA) Integration Profile: contributes to access control by
limiting network access between nodes and limiting access to
each node to authorized users. Network communications
between secure nodes in a secure domain are restricted to only
other secure nodes in that domain. Secure nodes limit access
to authorized users as specified by the local authentication and
access control policy.