Plagiarismcheck.org is a sophisticated similarity search engine. We advocate for bringing technology into academics to help instructors save time and motivate students write better papers.
Most plagiarism plugins rely on the moodle events like assessable_submitted and automatically send submitted files to the external plagiarism service. Your plugin requires the teacher/student to click a button after they have submitted their assignment to send it to your plagiarism service (I don't see this as a bad thing) - but it should be clear in your plugins db description - something like
"After uploading their assignment, Students/teachers are provided with a link that allows them to send the file for plagiarism checking"
Most plagiarism plugins rely on the moodle events like assessable_submitted and automatically send submitted files to the external plagiarism service. Your plugin requires the teacher/student to click a button after they have submitted their assignment to send it to your plagiarism service (I don't see this as a bad thing) - but it should be clear in your plugins db description - something like
"After uploading their assignment, Students/teachers are provided with a link that allows them to send the file for plagiarism checking"