Collaborative software production is another name for open source software and there are a plethora of them out there. Although I haven’t actually programmed any open source software, I have used a couple of the fruits of many many peoples labour in the form of web browsers and add on apps.
The open source initiative website has a great and very in depth definition of what exactly open source is:
Open source doesn't just mean access to the source code. The distribution terms of open-source software must comply with the following criteria:
1. Free Redistribution
The license shall not restrict any party from selling or giving away the software as a component of an aggregate software distribution containing programs from several different sources. The license shall not require a royalty or other fee for such sale.
2. Source Code
The program must include source code, and must allow distribution in source code as well as compiled form. Where some form of a product is not distributed with source code, there must be a well-publicized means of obtaining the source code for no more than a reasonable reproduction cost preferably, downloading via the Internet without charge. The source code must be the preferred form in which a programmer would modify the program. Deliberately obfuscated source code is not allowed. Intermediate forms such as the output of a preprocessor or translator are not allowed.
3. Derived Works
The license must allow modifications and derived works, and must allow them to be distributed under the same terms as the license of the original software.
4. Integrity of The Author's Source Code
The license may restrict source-code from being distributed in modified form only if the license allows the distribution of "patch files" with the source code for the purpose of modifying the program at build time. The license must explicitly permit distribution of software built from modified source code. The license may require derived works to carry a different name or version number from the original software.
5. No Discrimination Against Persons or Groups
The license must not discriminate against any person or group of persons.
6. No Discrimination Against Fields of Endeavor
The license must not restrict anyone from making use of the program in a specific field of endeavor. For example, it may not restrict the program from being used in a business, or from being used for genetic research.
7. Distribution of License
The rights attached to the program must apply to all to whom the program is redistributed without the need for execution of an additional license by those parties.
8. License Must Not Be Specific to a Product
The rights attached to the program must not depend on the program's being part of a particular software distribution. If the program is extracted from that distribution and used or distributed within the terms of the program's license, all parties to whom the program is redistributed should have the same rights as those that are granted in conjunction with the original software distribution.
9. License Must Not Restrict Other Software
The license must not place restrictions on other software that is distributed along with the licensed software. For example, the license must not insist that all other programs distributed on the same medium must be open-source software.
10. License Must Be Technology-Neutral
No provision of the license may be predicated on any individual technology or style of interface.
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A very good example of this is the Linux operating system. This is an open source operating system in competition to other OS (microdoft, Apple). It’s open source meaning that anyone can use and change it as they see fit. It also means that anyone can develop new apps for it and share it with the wider web community (for free).
Linux can be defined as:
(often pronounced LIH-nuhks with a short "i") is a Unix-like operating system that was designed to provide personal computer users a free or very low-cost operating system comparable to traditional and usually more expensive Unix systems. Linux has a reputation as a very efficient and fast-performing system. Linux's kernel (the central part of the operating system) was developed by Linus Torvalds at the University of Helsinki in Finland. To complete the operating system, Torvalds and other team members made use of system components developed by members of the Free Software Foundation for the GNU Project.
Although open source operating systems such as linux were originally shunned in favour of Microsoft’s Windows, or relegated to the more technical “nerd” sector, it become more and more appealing to a wider market. A recent BBC article reported that the country of Brazil is working on a draft decree that would force all of their government to switch to the open source OS. And the number one reason for the switch? Cost. While it costs approximately $500 per machine to install and run Windows, it costs nothing to use Linux. And this is important to a poorer nation and its peoples.
And it also has repercussions for the wider technology community. As Jose Luiz de Cerqueira Cesar Global Organisation for Free Software states, “I think free software will encourage Mr Gates to reinvent his business”.
The open source software that I use the most is the firefox web browser. it’s a widely available free web browser rivalling Internet Explorer. The operating system has been made public and as a result, there has been an explosion of “apps” (also free) that can be used to enhance the user experience.
One of the main benefits of open source is the fact that users can get what they want, when they want it, and how they want it. Using the firefox example, say a user wanted an app or add on that would add a button on the toolbar that could, when pressed, toggle flash on and off on a web page to make it load faster. They can either do a search hoping that someone has already made that (chances are high that if it’s a common need, then someone’s already made it), or they can go about making it themselves (using something like the greasemonkey script) provided they have the expertise.
Apple is / has released something called the software developers kit (SDK). The kit contains the tools that allow developers to create native applications for the iPhone and iPod touch where it will mediate between the programmer and the iPhone operating system. This is big news for the iphone and itouch, creating not only a platform for open source software, but a tool to use / access it.
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Jobs says: We are excited about creating a vibrant third party developer community around the iPhone and enabling hundreds of new applications for our users. With our revolutionary multi-touch interface, powerful hardware and advanced software architecture, we believe we have created the best mobile platform ever for developers.
google is tapping the open source networks by developing a new mobile phone operating system called
android. This linux based operating system is claiming to be the first complete, open, and free mobile
platform.
the aim of the android operating system is to provide a platform that developers can then use to create applications. The thinking behind this is that 100,000 unpaid people developing applications that they want will deliver more than 100 paid developers working on applications that they think people will want.