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SDXF (Structured Data eXchange Format) is a data serialization format defined by RFC 3072. It allows arbitrary structured data of different types to be assembled in one file for exchanging between arbitrary computers. The ability to arbitrarily serialize data into a self-describing format is reminiscent of XML, but SDXF is not a text format (as XML) — SDXF is not compatible with text editors. The maximal length of a datum (composite as well as elementary) encoded using SDXF is 16777215 bytes (one less than 16 MiB). ==Technical structure format== SDXF data can express arbitrary levels of structural depth. Data elements are self-documenting, meaning that the metadata (numeric, character string or structure) are encoded into the data elements. The design of this format is simple and transparent: computer programs access SDXF data with the help of well-defined functions, exempting programmers from learning the precise data layout. The word "exchange" in the name reflects another kind of transparency: the SDXF functions provide a computer architecture independent conversion of the data. Serializations can be exchanged among computers (via direct network, file transfer or CD) without further measures. The SDXF functions on the receiving side handle architectural adaptation. Structured data is data with patterns predictable more complex than strings of text.〔It may be argued that "structured" is used here in the same sense as in structured programming — like there are no gotos in a (strictly) structured program, there are no pointers/references in SDXF. This need not be how the name arose, however.〕 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「SDXF」の詳細全文を読む スポンサード リンク
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