The server acts as the interface act as the interface to the data housed on the server side of the application. As the application is used, the client portion of the application requests the data it needs from the server. For file-based streaming, the client requests a streaming file and the server sends it. With dynamically prioritized streaming, however, as the client's perception changes, the data needed for the client portion of the application changes and requires a more complex request protocol to communicate these changes. Regardless of the type of streaming, pre-determined or dynamically determined, the streaming data comes from a server. In some cases it is an HTTP server, and in others it is a specialized streaming server. This white paper explains how VizStream? Specialized Streaming Servers have the ability to dynamically optimize and 'segment' the streaming data requested based on bandwidth, latency, and PC power.