Updating old versions of ubuntu
From a customer's perspective, the ability to use open technology under standard commercial terms and support is valuable.They are willing to pay for the legal protection (e.g., indemnification from copyright or patent infringement), "commercial-grade QA", and professional support/training/consulting that are typical of commercial software, while also receiving the benefits of fine-grained control and lack of lock-in that comes with open-source.Dual licensing offers the software under an open-source license but also under separate proprietary license terms.The proprietary version can be sold to finance the continued development of the free open-source version.Much unlike proprietary off-the-shelf software that come with restrictive licenses, open-source software is distributed freely, through the web and in physical media.Because creators cannot require each user to pay a license fee to fund development this way, a number of alternative development funding models have emerged.
A local bug-fix or solution to a software problem, written by a developer either at a company's request or to make his/her own job easier, can be released as an open-source contribution without costing the company anything.
These firms' motivation tends to be more strategic, in the sense that they are trying to change the rules of a marketplace and reduce the influence of vendors such as Microsoft.
Smaller vendors doing open-source work may be less concerned with immediate revenue growth than developing a large and loyal community, which may be the basis of a corporate valuation at merger time.
Customers can be attracted to a no-cost and open-source edition, then be part of an up-sell to a commercial enterprise edition.
Further, customers will learn of open-source software in a company's portfolio and offerings but generate business in other proprietary products and solutions, including commercial technical support contracts and services.
Since several open-source licenses stipulate that authors of derivative works must distribute them under an open-source (copyleft) license, ISVs and VARs have to develop new legal and technical mechanisms to foster their commercial goals, as many traditional mechanisms are not directly applicable anymore.