Dr. Tester has made her course site available via Control Panel > Course Settings> Course Availability.
When Dr. Tester has completed building out her course and is ready to make her course available to students, she needs only to go to Settings and choose Manage Access and Publish Site.
Dr. Tester can tell if her site is left in draft vs. published mode by seeing the “Unpublished Site” icon at the top left of her course menu. This icon will be removed as soon as she publishes her site.