Open source code

In visonmobile, you can see a pdf. One of the pages is who's who of open source, which divides open source into several layers. Learn about it:

Based on this distribution, let's take a look at meego. Meego = Intel Mobile (OS) + Nokia maemo (application environment) + Nokia QT (application environment ). From meego's official website, we can know that meego's handset is also integrated with Firefox fennec (browser). meego is like a hodgedge. After all, his boss is a factory rather than a software company.

The advantage of open source is that investment and risks can be shared and innovation can be accelerated through third-party contributions. The disadvantage of open source is the lack of tutorials in Mobile OSS. You can also perform some control on Open Source:

• Users can run the software for free-Incomplete software is provided, and sponsors can retain important components of closed source code. users will not be able to create fully functional Derivatives on this basis.
• It is easy and free to get software source code-private code lines: sponsors can use these features to provide better and more powerful code than public code, this means that anyone using public program code will not have this part of functionality or bug fixes.
• The software can be freely modified-the copyright of the contributor, and the sponsor can decide which contributions will enter the primary code line. This means that the user may need to maintain a parallel branch version. If the contribution cannot enter the primary code line, you need to pay the price to return to the primary code line again. Sponsors can provide major Engineer teams, which means that the contributions of other contributors may be overwhelmed by the contributions of the sponsor's leadership team.
• Treat all individuals and teams alike-Private blueprint: sponsors can specify the product roadmap and Development Strategy, which can only be visible to paid members or invited teams. Sponsors may designate rules for projects. forums (such as IRC channels) are only valid during working hours. Due to time zone issues, they may affect users in other mainland China.
• There is no discrimination against work in the field-the sponsor can register a trademark for the project name, which indicates that the name of the derivative products of other users who wish to use the project needs to be recognized by the sponsors. Sponsors can establish a developer community to develop related software derivatives.

Let's take a look at how Symbian has taken control of open-source projects: the open-source 99% reviewer works in Nokia, and there is no contributor to long-tail benefits, while the submitted process is responsible. Nokia decides roadmap. Each OEM needs to pay an expensive $5 million.

The classic saying is "you can have any colore as long as it's black" (you can choose any color as long as it is black ). Google has private code 6-8 months earlier than the public SDK. All code reviewer works on Google. Google owns andriod, which is a channel to publish data (closed ). Google owns the andriod trademark. If Google does not pass the CTS (compatibility test), it cannot use the trademark of andriod. CTS strictly tests include API detection, performance testing, and hardware requirements, and standards are not publicly available.

Limo funds that haven't heard the news for a long time: OEMs need to pay $20 for source code access. [The promotion progress is slow, but there are no success stories. Unlike the grand fall of Symbian, We will quietly leave]

The operator considers it as a pipe or a supermarket. It has the following benefits: wireless spectrum, network infrastructure (analysis, Network API), payment and authentication (billing), voice/text/data (reselling data through OEM ), value-added services (brand delivery ). You can obtain value in service, service delivery, and service distribution (App Store.

Source:

• Mobile-megatrends-2010-(visionmobile.pdf
• Mobile-Open-Source-360-VisionMobile.pdf