What are Standards?
Have you ever wondered about standards for
the AIDC industry? Some of you are probably aware of the fact
that they exist, but you may not know where they come from, and
who actually created them. In this update, I will try to dispel
some of the myths and help you to understand the processes
involved.
For more on the subject of Standards see
the links at the bottom of the page.
First thing to understand is that there are
two different types of standards.
Technology Standards
The first type of standard is a
technology standard or specification. This type of standard
is the base line for the creation of a product that uses the
technology. An example of this is a barcode symbology
standard. The majority of the symbology standards that exist
today have been created by AIM (For a list of AIM Symbology
standards visit
this link). Some of
these barcode standards are currently being used as the
basis for standardization at the ISO/IEC JTC 1 level by
SC31. Others where the
international demand is not there will remain as AIM
standards. An explanation of how ISO standardization works
Biometrics
standards are just starting to be developed and a good
reference to the work that is going on can be found at
http://www.biometrics.org/html/standards.html.
RFID standards are being developed by SC31
along with barcode, data syntax, and conformance standards.
There is also work being done at national levels by some
countries. For a list of some of the international, regional,
and national standards bodies visit
http://www.aimglobal.org/standards/stndrdorgs.asp
Bar Code standards have been developed
mostly by AIM (http://www.aimglobal.org) though some of these
have now been adopted by ISO. See a summary of
Bar Code
Standards.
Application Standards
The second type of standard is what I will term an application
standard. In this case a standard is written that will call upon
a technology standard as the basis for the implementation of an
application. An example of this might be the AIAG standard for
Parts Identification and Tracking Application. This application
standard defines specifications for both direct marking and
labeling of individual parts, kits, assemblies/ subassemblies,
unit packs and subpacks, using both Code 39 linear bar codes and
Data Matrix two dimensional symbols. The standard describes
technical requirements for the symbols, format rules for the
data in the symbols, and rules for printing the human-readable
interpretation.
In
the case of an application standard it is typically the
application industry that writes the standard (as in the
case above where AIAG wrote the standard for automotive
parts marking). The application standard makes reference to
the technology standard(s) (in this case Code 39 and Data
Matrix), so that the implementation of the symbology itself
is correct, but the application standard details how to use
the symbology to encode the needed information and what that
information should be.
For a list of application standards
developers for various industries see
this link. You will see that this list of standards developers covers a
wide variety of applications and is probably not all
inclusive. You should be able to find a link to the
standards you are looking for from this page.
Once you have the basic technology standard
written then it becomes available for everyone to use and
interpret for their particular use. An example of the use of the
barcode technology standards would be the use by the Health
Industry Business Communications Council (HIBCC)
(http://www.hibcc.org/AUTOIDUPN/standards.htm) of various barcode
symbologies in the health care industry. HIBCC have written a
series of application standards that use several symbologies to
define how bar code technology is used in healthcare. Each of
these application standards refers to a technology standard for
the rules on creating the symbology, but they add the rules for
the data side of the barcode.
So, if you are looking for a standard for
barcode technology, then you need to look in two places, the
symbology standard first and then the application standard from
the industry association. From the American Production &
Inventory Control Society Inc. (APICS) to the Warehousing
Education and Research Council (WERC) there will be an
association for your industry that has created an application
standard.
More information on Standards:
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