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International
Tables for Crystallography Volume G Definition and exchange of crystallographic data Edited by J. R. Hester and B. McMahon © International Union of Crystallography 2026 |
International Tables for Crystallography (2026). Vol. G. Early view chapter
https://doi.org/10.1107/97809553602060001011 Chapter 4.2 Core dictionary (coreCIF) |
Core dictionary version 3.3.0
_audit.schema
Name:_audit.schema
Definition:
This data item identifies the type of information contained in the
data block. Software written for one schema will not, in general,
correctly interpret datafiles written against a different schema.
Specifically, each value of _audit.schema corresponds to a list
of categories that were (potentially implicitly) restricted to a
single packet in the default Base schema, but which can contain
multiple packets in the specified schema. All categories
containing child keys of the listed categories may also contain
multiple packets and do not need to be listed.
The category list for each schema may instead be determined from
examination of the dictionaries that this data block conforms to
(see _audit_conform.dict_name).
Type: Text
The data value must be one of the following:
|
Base | Original core CIF schema. |
|
'Space group tables' | SPACE_GROUP category is looped. |
|
Entry | Entry category is defined and looped: information from multiple data blocks in one block. |
|
Custom | Examine dictionaries listed using data items from the AUDIT_CONFORM category. |
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Local | Locally modified dictionaries. These datafiles should not be distributed. |
Enumeration default: Base
Category:
audit
