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| 数据词典 | |||
| 数据字典 | |||
| English thesaurus | |||
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| DD; DD (SA, CASE, DB) | |||
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| A database that contains the name, type, range of values, source and authorization for access for each data element in a database. It also indicates which application programs use those data so that when a data structure is contemplated, a list of the affected programs can be generated (May be a stand-alone information system used for management or documentation purposes, or it may control the operation of a database) | |||
| Data Dictionary: 34 phrases in 9 subjects |
| Aviation | 6 |
| Computer networks | 1 |
| Earth sciences | 1 |
| Electronics | 10 |
| Geophysics | 1 |
| Information technology | 10 |
| Space | 2 |
| Technology | 1 |
| Telecommunications | 2 |