Which editing system is suitable for publishing my open access journal?

The free open source software Open Journal Systems (OJS) assists with each stage of the process of producing open access journals. OJS was developed by the Public Knowledge Project (PKP) at the University of British Columbia in Vancouver and published under a GNU General Public License. The software allows you to manage rights, choose layout options and set different roles (reader, author, editor, proof-reader, web designer, reviewer), and has an OAI-PMH interface to distribute article metadata in search engines and (library) catalogues. In addition to the local installation and administration, you can also have your journal hosted for a fee (from USD 850 per journal title and year as of 1 July 2015).
Download information: https://pkp.sfu.ca/ojs/ojs_download/
Documentation: https://pkp.sfu.ca/wiki/index.php?title=OJS_Documentation
Hosting service: https://pkpservices.sfu.ca/content/journal-hosting