base class, extends NXobject


Document an event of data processing, reconstruction, or analysis for this data.


No symbol table

Groups cited:



@default: (optional) NX_CHAR

Declares which child group contains a path leading to a NXdata group.

It is recommended (as of NIAC2014) to use this attribute to help define the path to the default dataset to be plotted. See https://www.nexusformat.org/2014_How_to_find_default_data.html for a summary of the discussion.

program: (optional) NX_CHAR

Name of the program used

sequence_index: (optional) NX_POSINT

Sequence index of processing, for determining the order of multiple NXprocess steps. Starts with 1.

version: (optional) NX_CHAR

Version of the program used

date: (optional) NX_DATE_TIME

Date and time of processing.

NOTE: (optional) NXnote

The note will contain information about how the data was processed or anything about the data provenance. The contents of the note can be anything that the processing code can understand, or simple text.

The name will be numbered to allow for ordering of steps.

Hypertext Anchors

List of hypertext anchors for all groups, fields, attributes, and links defined in this class.

NXDL Source: