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Translations

Translations:Manage users/50/en

From LimeSurvey Manual

Class Description
Installation Administrator Those people who create login user accounts to allow others to create, edit, activate and/or view surveys and their results.  Often can be given access to edit the templates, labelsets and other key features independent of any particular survey stored.
Survey Administrator A person with a login account that is given some management access to a particular survey.  Each survey can have its own set of users with specific rights to manipulate the survey.  These rights can be as broad as to activate a survey and possibly edit its question base.  They can be as minimum as simply able to review the results to date.
Participant Those people who simply respond or participate in taking a survey.  They may or may not have token access.  They do not need a login account to the administrative interface and thus are not termed users.
Installer A special class of person who has access to the MySQL (or similar) database server and possibly the command line interface of the computers operating system in order to install and configure the survey software.  This person is asked to setup the initial SuperAdmin user account from which other user login accounts can be created.
Developer An very special class of person who has access to the source code and can manipulate it to change the programs behavior.  Generally only done with versions of the survey that are not available for live, active surveys.