PeopleSoft Inc, Pleasanton, California is integrate its client-server applications with Open Horizon Inc’s Connection software to secure databases used by PeopleSoft applications. Connection includes Connection Security Module for encryption and authentication services, and Connection Directory Module for centralised naming services. These provide access to the Kerberos Security Service and the Cell Directory Service from the Open Software Foundation’s Distributed Computing Environment. Connection provides plug-and-play access to heterogeneous databases, user authentication, data encryption, directory services and transaction processing monitors for two- and three-tier client-server architectures. The integration will enhance network authentication of users through Kerberos and DES encryption, and database single sign-on. Connection will be available on PeopleTools beginning with the launch of version 5.1, set for March 1996. Additionally, PeopleSoft has put out a maintenance release of PeopleTools 5.01, which uses encryption technology, and is free to customers under maintenance. Upgrades to PeopleTools 5.1 are also free to PeopleSoft customers under maintenance.