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The Facebook Platform is an umbrella term used to describe the set of services, tools, and products provided by the social networking service Facebook for third-party developers to create their own applications and services that access data in Facebook.〔 It was launched in . The platform offers a set of programming interfaces and tools which enable developers to integrate with the open "social graph" of personal relations and other things like songs, places, and Facebook pages. Applications on facebook.com, external websites, and devices are all allowed to access the graph. ==History== Facebook launched the Facebook Platform on , providing a framework for software developers to create applications that interact with core Facebook features.〔 A markup language called Facebook Markup Language was introduced simultaneously; it is used to customize the "look and feel" of applications that developers create. Using the Platform, Facebook launched several new applications,〔〔 including Gifts, allowing users to send virtual gifts to each other, Marketplace, allowing users to post free classified ads, Events, giving users a method of informing their friends about upcoming events, Video, letting users share homemade videos with one another, and social network game, where users can use their connections to friends to help them advance in games they are playing. Many of the popular early social network games would combine capabilities, for instance, one of the early games to reach the top application spot, (Lil) Green Patch, combined virtual Gifts with Event notifications to friends and contributions to charities through Causes. Third party companies provide application metrics, and several blogs arose in response to the clamor for Facebook applications. On , Altura Ventures announced the "Altura 1 Facebook Investment Fund," becoming the world's first Facebook-only venture capital firm. On , Facebook changed the way in which the popularity of applications is measured, to give attention to the more engaging applications, following criticism that ranking applications only by the number of people who had installed the application was giving an advantage to the highly viral, yet useless applications. Tech blog Valleywag has criticized Facebook Applications, labeling them a "cornucopia of uselessness." Others have called for limiting third-party applications so the Facebook user experience is not degraded. Applications that have been created on the Platform include chess, which both allow users to play games with their friends.〔(【引用サイトリンク】url=https://www.facebook.com/apps/application.php?id=2427617054&ref=s )〕 In such games, a user's moves are saved on the website, allowing the next move to be made at any time rather than immediately after the previous move. By , seven thousand applications had been developed on the Facebook Platform, with another hundred created every day. By the second annual f8 developers conference on , the number of applications had grown to 33,000, and the number of registered developers had exceeded 400,000. Within a few months of launching the Facebook Platform, issues arose regarding "application spam", which involves Facebook applications "spamming" users to request it be installed. Facebook integration was announced for the Xbox 360 and Nintendo DSi on at E3.〔(【引用サイトリンク】title=Microsoft E3 Announcement )〕 On , Sony announced an integration with Facebook to deliver the first phase of a variety of new features to further connect and enhance the online social experiences of PlayStation 3. On , Facebook announced the release of ''HipHop for PHP'' as an opensource project. Mark Zuckerberg said that his team from Facebook is developing a Facebook search engine.〔(Facebook is developing its own Search Engine ). Search for technology (2012-09-17). Retrieved on 2013-07-24.〕 “Facebook is pretty well placed to respond to people’s questions. At some point, we will. We have a team that is working on it", said Mark Zuckerberg. For him, the traditional search engines return too many results that do not necessarily respond to questions. “The search engines really need to evolve a set of answers: 'I have a specific question, answer this question for me.'" On , Facebook announced Haxl, a Haskell library that simplified the access to remote data, such as databases or web-based services. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Facebook Platform」の詳細全文を読む スポンサード リンク
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