Google Drive is Google's file sync app that lets you store all of your files online alongside your Google Docs documents, and keep them synced with all of your devices.
Assign each access exception to its authorized reviewer.
Your exception requests reach the reviewer you choose for each data classification, while requesters can see who has the decision.
Route the final security report to the reviewer named on the case.
Your reviewer gets the finished report and a clear decision request. Your case shows when you asked.