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The '''Head-Body Pattern''' is a common [[XML]] design pattern, used for example in the [[SOAP]] protocol. This pattern is useful when a message, or parcel of data, requires considerable meta-data. While mixing the meta-data with the data could be done it makes the whole confusing. In this pattern the meta-data or meta-information is structured as the header, sometimes known as the envelope. The ordinary data or information is strucured as the body, sometimes known as the payload. XML is employed for both head and body.
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