Turnitin provides Similarity Checking and online grading using their Similarity Report and Online Grading tools. Turnitin saves instructors time and facilitates personalized feedback for learners. 

Similarity Report lets you monitor Assignment submissions and identify potential cases of plagiarism by automatically comparing submissions to an online database of original content. You can then view Similarity Reports which highlight key areas, show a breakdown of matching sources, and provide direct links to the matching content. 

You can also take advantage of the integrated Online Grading which lets you add comments, inline text, and highlight sections in file submissions, directly from the Assignments tool. Learners can view Online Grading feedback in User Progress under Assignments, in Grades, in Assignments, in User Progress under Grades, and in Content. 

Additional Information and how-to guides for Turnitin are available on the Brightspace Helpsite.