I have found the solution for the problem, and i hope this helps other people :wink:
Create a custom role
You can add a new custom role according to your security requirements. You will
have to include the custom role details in the permissionDefinitions.xml file,
which is located at <config>\model\. For a Tomcat installation, you can find
this file at tomcat\webapps\alfresco\WEB-INF\classes\alfresco\model\
permissionDefinitions.xml.
You need to define your own permissions group (say TestRole) and assign
permissions as shown below:
<permissionGroup name="TestRole" allowFullControl="false"
expose="true" >
<includePermissionGroup permissionGroup="Read" type="sys:base" />
<includePermissionGroup permissionGroup="AddChildren"
type="sys:base"/>
<includePermissionGroup type="cm:lockable"
permissionGroup="CheckOut"/>
</permissionGroup>
Once you make the changes to the XML file, you need to restart Alfresco to have the
new role added to the system.
