A resource is a room or piece of equipment that you schedule instead of a person. Resources are conference rooms, projectors, laptops, etc. Once a resource has been created, the resource owner can change permissions for the resource and update settings (e.g., scheduling hours, who can schedule, etc.). If you need to add more resource owners, the current owner of the resource should send the request to its-email@uiowa.edu and request the users (list HawkID's) be added to the security group.
Delegates are only needed if your resource is NOT set to "automatically accept and decline meeting requests." Microsoft recommends adding no more than two delegates. Delegates are used to manage the resource (accept/decline meeting requests). If you are adding a delegate for the resource, you will need to create a new profile in Outlook first.
If the resource is set to automatically accept meeting requests, the resource owner would assign permissions to users. Permissions give users access to the resource such as editing existing meetings, viewing full details, etc. The default permission to the resource is Free/Busy -- meaning users can see when the resource is available but cannot see details of the meetings.