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A role is a collection of permissions defined for the whole system that you can assign to specific users in specific contexts. The combination of roles and context define a specific user's ability to do something on any page.  The most common examples are the roles of student and teacher in the context of a course.  
Roles are groups of permissions.  Users are assigned roles in specific [[Context|contexts]]. The combination of roles and context define a specific user's ability to do something on any page.  The most common examples are the roles of student and teacher in the context of a course.  


:'''Note:''' Sometimes the terms "capabilities" and "permissions" are used to mean "the ability to do something".  Technically, they are different. A capability is an action created in the code (edit a quiz). Permissions are assigned to the capability.
*[[Managing roles]]
 
*[[Roles settings]]
==Definitions==
*[[Using roles]]
;Role
*[[Standard roles]]
:An identifier of the user's status within each [[Context]]. The status depends upon permissions given for one or more capabilities in any given context. A role can often change within different contexts. 
*[[Creating custom roles]]
::For example Teacher and Student are standard user roles. These roles probably have different capabilities in some contexts but may share permissions in the other.
:When Moodle is first installed, a number of [[Standard roles]] are created automatically.
;Capability
:A description of a particular Moodle feature. A list of many capabilities can be seen in the [https://docs.moodle.org/en/Category:Capabilities capability category index page].
::For example [[Capabilities/moodle/blog:create|moodle/blog:create]](writing blog entries) or "Backup course" are two capabilities. 
::Note: the "<nowiki>mod/blog:create</nowiki>" notation is a common to identify a capability.
;[[Manage_roles#Permissions|Permission]]
:A setting for a capability. Can be any one of four: not set(inherit), allow, prevent or prohibit.
;[[Context]]
:A "space" in Moodle.
::For example: a course, activity module or block can each be a context. 
::Some contexts can contain multiple contexts in their space. For example, a course can contain a lesson, assignment, forum and quiz modules, plus blocks.
 
[[Image:context.png|center|thumb|150px|Each context can assign a different role to a User]]


==See also==
==See also==


*[[Useful things a teacher can do with roles]]
*[[Roles FAQ]]
*[[Development:Roles administration improvements for Moodle 2.0]]
*[[How permissions are calculated]]
*[[:Category:Capabilities]]
*Using Moodle [http://moodle.org/mod/forum/view.php?id=6826 Roles and Capabilities forum]


[[Category:Roles]]
[[Category:Roles]]

Revision as of 09:20, 20 October 2011

A role is a collection of permissions defined for the whole system that you can assign to specific users in specific contexts. The combination of roles and context define a specific user's ability to do something on any page. The most common examples are the roles of student and teacher in the context of a course.

See also