Content processors are sometimes confused with network processors that inspect the packet payload of an IP packet travelling through a computer network. These components allow for the design and deployment of next-generation networking systems that can make packet or message processing decisions based on an awareness of the packet or message content. The work of Content Processors is often termed Content Processing or Deep Packet Inspection, DPI, though some people feel that the expression DPI is too limiting as many Content Processors can modify and re-write content on the fly - therefore they can do much more than just inspect which implies a sort of monitoring only function.