Ally is a built-in accessibility tool for Blackboard. It is able to do 3 things:
Making your documents more accessible will improve them for students and will increase the quality of alternative formats that are produced.
Watch this video about file accessibility and how to improve it using Ally.
Students are only able to see the Ally icon that will allow them to download alternative formats. They will not see the accessibility rating of documents.
Here is a short video you can show students to introduce them to Blackboard Ally on your module.