The Common Application (Common App) allows students to apply to multiple colleges at once. Students only have to fill out details that most schools require, including name, address and extracurricular activities, one time.
Students create an account within Common App, and then add colleges that they want to apply to.
Common App and Scoir are connected and any colleges that are added in Common App will also appear in Scoir.
SCOIR is how all documents (transcripts, teacher recommendations) will be made available to colleges where students have applied.
Take a look at all the helpful resources through Common App Ready for tips and "how-to's" : https://www.commonapp.org/counselors-and-recommenders/common-app-ready