# 3.3.1.40. NXprocess¶

Status:

base class, extends NXobject, version 1.0

Description:

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

Symbols:

No symbol table
Groups cited:
NXnote

Structure:

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.

NXDL Source:
https://github.com/nexusformat/definitions/blob/master/base_classes/NXprocess.nxdl.xml