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Open source is a development method for software that harnesses the power of distributed peer review and transparency of process. The promise of open source is better quality, higher reliability, more flexibility, lower cost, and an end to predatory vendor lock-in.

The Open Source Initiative (OSI) is a non-profit corporation formed to educate about and advocate for the benefits of open source and to build bridges among different constituencies in the open-source community.

One of our most important activities is as a standards body, maintaining the Open Source Definition for the good of the community. The Open Source Initiative Approved License trademark and program creates a nexus of trust around which developers, users, corporations and governments can organize open-source cooperation.

New and Noteworthy

The Open Source Intiative Categorically Rejects IIPA's special pleadings against Open Source

The entire position taken by IIPA against Open Source is unbalanced. It relies on outdated definitions, special interests and a fear of innovation and new business model opportunities. It blends them together to abuse an outdated mechanism of the US government with a condemnation that applies to the US itself. America has a role in defending free markets around the world. The IIPA's stance does not support that role, and should not be respected. Read more.

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• The OSI Categorically Rejects IIPA's special pleadings against Open Source
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