Therefore, an NDA protects non-public business information. DDNs are often signed when two companies, individuals or other companies are considering doing business and need to understand the processes used in the other`s business to assess the potential business relationship. DDAs may be “reciprocal”, meaning that both parties are limited in their use of the materials supplied, or may restrict the use of materials by a single party. It is also possible for an employee to sign an NDA or NDA-type agreement with an employer. In fact, some employment contracts will contain a clause that will limit employees` use and dissemination of “confidential information” belonging to the company. A confidentiality agreement is a legal agreement that binds one or more parties to the secrecy of confidential or protected information. . . .