System security is comprehensively considered throughout. You will find that Q-SYS enables you to easily meet the requirements of ISO 17025. As well as login security, each user has their own login name and passcode. To use any menu option, each individual user must be defined in the security database. Users belong to user groups. Security is set up at group level for ease of management. User groups are given access rights on a module by module basis. There are many defined operations for all modules, such as entry, record editing, adding a new record, record deletion, etc., which members of the user group may carry out. There are also special operations unique to a particular Q-SYS module. It's necessary for a user to enter their correct personal passcode before they can carry out the specified operation and/or save their changes. In order to avoid tedious repeated passcode entry for similar operations (a series of test result entries, for example), a time-out can be set for each workstation. If a similar operation is carried out a second or subsequent time within the timeout period, the passcode is not requested again. Users are forced to change their passcodes at intervals determined by the system supervisor, who can also determine the minimum passcode length and security strength. Every critical record stored in Q-SYS has stored against it the date, time, user ID and workstation ID where the record was created and last amended. Some modules also maintain a complete audit trail of all previous entries. Record deletions and other error messages are also logged to the System Error Log.