If you wish, you can also allow your staff/volunteers to add their own qualifications into the system. This is done via the 'Configuration' page, and is done on a group-by-group basis (eg. people from one group can be allowed to enter their own qualifications, whilst others in another group might not be allowed to). To change this setting, go to the 'People' tab in the configuration page, and update 'People can add their own qualifications' area as needed. You can opt to only allow people to add certain types of skills & qualifications if you wish - eg. you might allow people to add their licences and any languages they might know, but not allow them to add other qualifications.
Your staff won't be able to add entirely new qualifications into the system by using this facility - only choose from the existing list of skills & qualifications which have already been entered.