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 Under construction Server cluster or server farm: A group of networked servers that streamline internal processes by distributing the workload and expedite computing processes by harnessing the power of multiple servers. Load-balancing software tracks demand for processing power from different machines, prioritizing the tasks, and scheduling and rescheduling them depending on priority and demand users put on the network. Redundancy ensures that if one server in the farm fails, another can step in as backup. SECAM: Similar to PAL at 25 FPS, the SECAM format is employed primarily in France, the Middle East, and Africa. It is only used for broadcasting. In countries employing the SECAM standard, PAL format cameras and decks are used. Skin: A custom GUI (graphical user interface) designed for a specific media player. SMIL: Pronounced like “smile,” SMIL stands for Synchronized Multimedia Integration Language. Like HTML, it is a markup language designed to be easy to learn and deploy on Web sites. SMIL was created specifically to solve the problems of coordinating the display of a variety of multimedia on Web sites. By using a single timeline for all of the media on a page, display can be time-coordinated and synchronized. Spatial compression: See intra-frame compression. Static media: Refers to design elements that do not incorporate motion or sound such as still photos or graphics. Stream: Data of a distinct type sent from server to client at a rate defined by the server. For a typical video broadcast, for example, one stream could consist of the video signal, one stream could consist of the audio data, and one stream could contain the closed caption information. In most cases, each stream is served at the rate that it should be rendered by the client. Streaming: Process of sending media over the Internet or other network, allowing playback on the desktop as the video is received, rather than requiring that the entire file be downloaded prior to playback. SWF: The SWF graphic file format is a version of the Macromedia Flash Player vector-based graphics format introduced in 1997. The SWF file format is ideal for presenting vector-based interactive and animated graphics with sound for the Web. Vector images are ideal for graphics with solid areas of color and distinct object definitions. Because a SWF file is vector-based, its graphics are scalable and play back smoothly on any screen size and across multiple platforms. A vector animation usually has a smaller file size than a bitmap animation. Glossaire (PDF : 168 ko) |
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