Open source is a means of production and distribution. Whereas traditional models internalize the creation of intellectual property, open source provides methods and IP licenses to leverage a community outside the organization. This community produces intellectual property, and part of the assets, or all assets created may be shared by the community. Software as a Service (SaaS) allows the commercial exploitation of open source components while charging customers for the service of running the software stack, and is one successful business model. Other successful business models of open source involve freemium and two-sided platforms.