closed vs open vs adaptive system Posted on May 12, 2016 by Kenneth Udut Leave a comment closed vs open vs adaptive system Attachments semi-perm (65.81 KB12.05.2016)🔊 Listen to this Leave a comment Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment. − 1 = three Leave a Reply