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To update skill groups and skills you must have the global permission System Settings set Skills and Skill Groups set to Update.
You A resource can edit their skill levels or their my profile page if it is allowed.
An administrator can edit a resource's skill levels either through their resource profile or their my profile page.
Skill approvers are determined by the cost center permission Approve Skills. Approvals are performed on the Resource Skills Tab.
Skills are used when searching for resources from the Role Requested Resource Tab and Role Booked Resource Tab.
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The resource info screen is reached from many areas of Projector. It provides a role up of relevant information about a resource, including their skill tree and skill levels.