What is: an Identity Provider, a Home Organization, the Identity Management process.
For Identity Provider administrators:
IDP Metadata Profile (metadata template, metadata validators)
IDP Attribute Profile: unique identifiers IDP Attribute Release
Relying Party Configuration (MetadataProvider, federation-specific)
Online Trainings for IdP administrators
To get a better understanding of attribute release, have a look at the GÉANT online course on "Successful Attribute Release".
If you care about security and incident management, attend the GÉANT online course on "Why SIRTFI?".