ISO/TR 11462-5:2023 Overview

Background of the Standard

In the world of manufacturing, CAD (Computer-Aided Design) is the universal language for data. Today, it is taken for granted that drawings can be shared online instantly and that designs from different sources can be digitally integrated.

But what about the evaluation of the products manufactured based on those drawings? Can you immediately analyze and compare data provided by another company within your own software? Unfortunately, the current reality often involves manual re-entry into Excel, converting data into proprietary formats, or restructuring it to fit internal systems.

As online (digital) process data increases, making data-driven evaluations has significantly improved the speed and objectivity of decision-making. Furthermore, automated data recording—free from human intervention—ensures data integrity and prevents tampering.

However, the cost and effort required to support different data formats for each equipment manufacturer are rising. While CAD has established official standards like STEP and IGES, no compatible, common data file format previously existed for the dimensional measurement results of those manufactured parts.

To address this, ISO/TR 11462-5:2023, Guidelines for implementation of statistical process control (SPC), Part 5: Quality data exchange format for SPC software, has been established.

Data Model

Data within a file is categorized by field numbers as shown in the table below:

K1000	…	K1999		Descriptions of part data, part types, and part details.
K2000	…	K2999		Data containing characteristic-specific information.
K0001	…	K0999		Numerical format descriptions / Measurement values
K8000	…	K8999		Quality control chart information.
K5000	…	K5999		Structural information.

File Types

There are two patterns for file creation. Depending on the equipment's data output method, you can choose the optimal configuration:

• Single File: All information consolidated into a single file with the extension *.dfq
• Split Files: A paired configuration consisting of *.dfx and *.dfd files.

Notation Rules

• The Key number and field content are separated by a space.
• One field is described per line.
• Line breaks must use a combination of <CR> and <LF> (Hex: $0D $0A, Decimal: #13 #10).

Example:
K0100 3(Total characteristics)
K1001/1 Part_Number
K2002/1 Characteristic_1

Mandatory Fields

he following fields are mandatory and must be included in the file:

• Total number of characteristics in the file (K0100)
• At least one field from the Part (K1xxx) group
  • Recommended: Part Number (K1001) and/or Part Name (K1002).
• At least one field from the Characteristic (K2xxx) group
  • Recommended: Characteristic Number (K2001) and/or Characteristic Name (K2002)

Main part field, characteristic field list

Key	Field Name
K1001	Part number
K1002	Part description
K1003	Part name abbreviation
・
・
K1041	Drawing number
K1091	Machine number

Key	Field Name
K2001	Characteristic number
K2002	Characteristic name
・	Characteristic abbreviation
・
K2101	Nominal
K2110	Lower specification limit
K2111	Upper specification limit

Example of parts and characteristics section

K0100 3
K1001/1 P10L3
K1002/1 Work10
K1003/1 WK10
K1041/1 DW0001
K2001/1 M1
K2002/1 Z position
K2101/1 -250.0
K2110/1 -250.1
K2111/1 -249.9
K2001/2 M2
K2002/2 Straightness
K2101/2 0.0000000000
K2111/2 0.1000000000
K2001/3 M3
K2002/3 Pocket Width1
K2101/3 50.0
K2110/3 49.9
K2111/3 50.1

Main value field list

キー	Field name
K0001	Values (Measured values)
K0002	attribute
K0004	Date/Time
K0005	Event
・
・
K0010	Machine number
K0014	Part ID

Field: Date/tiem field format (K0004)

Example fo Date/time format
DD.MM.YYYY/ HH:MM:SS
MM/DD/YYYY/HH:MM:SS
YYYY-MM-DD/HH:MM:SS
DD.MM.YYYY/HH:MM:SSam
MM/DD/YYYY/HH:MM:SSam
YYYY-MM-DD/HH:MM:SSam
DD.MM.YYYY/ HH:MM:SSpm
MM/DD/YYYY/HH:MM:SSpm
YYYY-MM-DD/HH:MM:SSpm

Example of Value level field section

K0001/1 2.01
K0002/1 0
K0004/1 20.02.2022/07:29:32
K0005/1 1
K0010/1 2
K0014/1 SR0001
K0001/2 10.15
K0002/2 0
K0004/2 20.02.2022/07:29:32
K0005/2
K0010/2 1
K0014/2 SR0002
K0001/3 5.3
K0002/3 0
K0004/3 21.02.2022/08:29:32
K0005/3 2
K0010/3 1
K0014/3 SR0003

Field: Quality Control Chart

Key	Field Name
K8012	Lower Control Limit(Xbar chart)
K8013	Upper Control Limit(Xbar chart)
K8112	Lower Control Limit(R chart)
K8113	Upper Control Limit(R chart)
・
・
K8500	Subgroup size
K8501	Subgroup type

Example of QCC section

K8012/1 -249.98
K8013/1 -250.062
K8500/1 5
K8501/1 0

Catalogs (Reference Tables)

ISO/TR 11462-5 utilizes reference tables called "Catalogs."
Repetitive traceability information—such as machine numbers, fixture IDs, or operator names—is pre-listed in a catalog. The numerical data then only needs to reference the corresponding ID from that table. This keeps file sizes small and ensures data consistency.

Key	Field Name	Remark
K4060/0	Machien catalog name	Applies to K field K0010
K4061/i	Catalog number
K4062/i	Machine number
K4063/i	Machine name

Machine catalog entry example (corresponding to K0010)

Key	Field Name
K4060/0	Machine catalog
K4061/2	2
K4062/2	M002
K4063/2	Machine 2

Referencing the Catalog:

K0010/1 2-->Assigns "Index 2" from the catalog to the first data point.

K0001/1 2.01
K0002/1 0
K0004/1 20.02.2022/07:29:32
K0005/1 1
K0010/1 2

On the software screen, the actual text from the catalog (e.g., "Machine 2") is displayed instead of just the number.

Benefits of Compliance

For Users:

• Equipment Selection: Select machinery based on truly critical specs (accuracy, speed, usability) without worrying about data post-processing or integration hurdles.
• Cost Reduction: Integrated existing databases with new equipment data instantly via the common format, drastically reducing the time and cost of data consolidation

For Equipment Manufacturers:

• Development Efficiency: No need to prepare multiple data output specifications for different customers, allowing R&D efforts to focus on core product innovation.