The Quality Inspection Engine (QIE) employs the user management and authentication mechanisms provided with the SAP NetWeaver platform, in particular the SAP Web Application Server ABAP. Therefore, the security recommendations and guidelines for user administration and authentication as described in the SAP Web AS Security Guide for ABAP Technology also apply to QIE. You can find this security guide on the SAP Service Marketplace at sap.service.com/securityguide → SAP NetWeaver '04 Component Security Guides → SAP Web AS Security Guide ABAP and JAVA.