The abbreviation CDD stands for Common Data Dictionary in the military field, especially in the US. You can find more abbreviations starting with CD here. Also take a look at our list with military acronyms.
The Dictionary of the Data
The Common Data Dictionary defines the data of a system uniformly: what a field means, which units apply, which values are allowed. The CDD is the vocabulary with which programs and databases of a system speak the same language.
Why Uniform Definitions Matter
One system’s “altitude” is another’s “height”: feet or meters, above ground or above sea level. Without a common data dictionary, every interface becomes a source of errors. The CDD settles the definitions once – for all who work with the data.
CDD appears in this meaning mainly in system and database documentation. It belongs to the quiet infrastructure of IT – the dictionary that prevents misunderstandings between machines.
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