Abstract:

Component One info@componentone.com, <ext-link ext-link-type="uri" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://www.componentone.com">www.componentone.com</ext-link>

JLS Language Corporation <ext-link ext-link-type="uri" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://www.jls.com">www.jls.com</ext-link>

Lingo Systems <ext-link ext-link-type="uri" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://www.lingosys.com">www.lingosys.com</ext-link>

Madcap Software Inc. <ext-link ext-link-type="uri" xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://www.madcapsoftware.com">www.madcapsoftware.com</ext-link>, info@madcapsoftware.com

Document Type: Research article