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.:: Document Index ::.

*The Open Source Definition
*The Halloween Documents
*OSI Press Releases
*OSI Certification Mark
*OSI Approved Licenses
*Peru Answers MS F.U.D.
*OSI's History in connection to OSI Site History
*On 'shared source'
*Graphics and Trademarks

.:: OSD change log ::.

*1.0 identical to DFSG, except for addition of MPL and QPL to clause 10.
*1.1 added LGPL to clause 10.
*1.2 added public-domain to clause 10.
*1.3 retitled clause 10 and split off the license list, adding material on procedures.
*1.4 Now explicit about source code requirement for PD software.
*1.5 allow "reasonable reproduction cost" to meet GPL terms.
*1.6 Edited section 10; this material has moved.
*1.7 Section 10 replaced with new "Conformance" section.
*1.8 Section 1: replaced "may not" with "shall not".
*1.9 Section 9: removed rationale referring to the action of the GPL as Contaminat[ion].
*Section 10 added.

.:: Conformance to the OSD ::.

(This section is not part of the Open Source Definition.)

We think the Open Source Definition captures what the great majority of the software community originally meant, and still mean, by the term "Open Source". However, the term has become widely used and its meaning has lost some precision. The OSI Certified mark is OSI's way of certifying that the license under which the software is distributed conforms to the OSD; the generic term "Open Source" cannot provide that assurance, but we still encourage use of the term "Open Source" to mean conformance to the OSD. For information about the OSI Certified mark, and for a list of licenses that OSI has approved as conforming to the OSD, see the OSD Certification Mark page.

Mark/Logo Instructions:

The Marks

You can find the 'Open Source' marks here, and the 'OSI Certified' marks here.

HTML Usage

We insist and ask that you link to the images of your choice instead of saving it on your own server.

Please follow this example:

Please pay special attention to the height & width variables. They are included in the image name.

Print Color Guide

A Color Guide for printing the "Open Source" and "OSI Certified" marks can be found here.

Thank you.

Copyright © 2003 by the Open Source Initiative
Technical questions about the website go to Steve M.: webmaster at opensource.org / Policy questions about open source go to the Board of Directors.

The contents of this website are licensed under the Open Software License version 1.1.

OSI is a registered non-profit with 501(c)(3) status. Contact our Board for further donation information.