Installation path containing OJS (typically 10-20MB)

Files path, as configured in config.inc.php using the files_dir directive; size varies depending on the documents being managed (e.g. file format, design complexity, number of rounds of review, etc.)

MySQL database, as configured in config.inc.php in the [database] section; size varies from tens of megabytes for small journals to hundreds for large journals or large collections

OJS contains several third-party open source libraries, including: