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Saturday, January 24, 2009

Documentation Structure for ISO 9001 QMS

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By Mark Kaganov

ISO 9001 documentation structure is outlined in the ISO 10013 Standard - Guidelines for Developing Quality Manuals. This standard recommends using a three-level structure. In practice, many companies use four-level documentation model that includes records. 4-level quality management system is shown below:

Quality Manual - level 1

Procedures - level 2

Instructions - level 3

Records - level 4

Actually, the documentation structure starts from the policy. The policy defines, among others, commitments with what standard a company intends to comply with. If you choose to use this approach, your quality management system will have five levels, similar to the structure below:

Quality Policy - level 1

Quality Manual - level 2

Procedures - level 3

Instructions - level 4

Records - level 5

Document titles for your ISO 9001 QMS

Some companies use very "wordy" titles for their documents. One of companies I worked with named their Procurement procedure as "Standard Operating Procedure for Purchasing and Vendor Control." While extremely descriptive, this title is not efficient.

This tendency to use long titles and document identifiers like "Standard Operating Procedure" most likely comes from regulated industries. Even though I could not find a requirement for such title formats, many companies still use these apparently outdated and ineffective conventions. If a short name sufficiently describes a document, let's use it. I suggest streamlining all elements of management systems. Consider this and do not make your system more complicated than it can be.

Numbering your documents

It is not a specific requirement of the ISO 9001 or any other standard to uniquely identify a part or a document. It is perhaps a common-sense measure and a worldwide practice in any documentation system, to give a document or a component a number and a title, and to identify its revision level. As documentation titles, document numbering is an area for creativity and an opportunity for optimization.

A company had some 130 employees. They had two part number formats: one for procedures, another for drawings. Procedures used XX-XXX number format. Drawings were numbered as XXXXXXX-XXX. One of the drawings had a number 000022-003. Assemblers simplified the system and called it "twenty two."

Is it acceptable to have long and difficult-to-read and remember numbers? Yes, of course! Is it practical? I do not believe so! In the example above, the procedure number, without the tab, contained seven digits. This meant that the system was prepared to handle almost 10 million document or part numbers (PN). The company had approximately 250 documents and probably would never go beyond 300. If nothing else, just reading these numbers with five sequential zeros may give one a headache. Surprisingly, this is not the worst case I have experienced! The company that won my "The Worst Part Number" Grand Prize assigned 12 (!) digits to their part numbers in the alphanumeric format.

I hope it is clear that only when extensive part numbers are justified, we do not have other options. If you build helicopters or satellites, you, no doubt, will need millions of parts and therefore will need long part numbers. If not, make your life easy and stay away from all those zeros. The most practical system I worked with used a three-digit format for their part numbers. 202, 203, 204, and so on. Worked just fine!

There is another opportunity for improvement of many QMS - part number designation. Many companies relate a document number to a document type. For example, 20-xxxx indicates a procedure, 30-xxxx indicates a drawing, SOP-xxxx indicates a standard operating procedure, etc. My practice with a few QMS that used designation approaches showed that "no designation" systems are more practical. Several QMS that used designation I have worked with have failed. Not long ago, one of my clients mentioned that they ran out of range in their document numbering format. The QMS initially permitted for identifying suppliers through a two-digit identifier within the part number. While the company grew, the number of supplier increased beyond expectations and eventually the company needed more than 99 suppliers. This resulted in the document number format to being able to support new needs.

To get around this issue, there is a simple solution - a "no designation" system. Part or document numbers in such systems are assigned sequential unique numbers. Areas of use, materials, suppliers, and other attributes are not reflected in part numbers. Moving in this direction, you can simplify your system even more. I worked with a company that did not use document No. at all. That documentation system used just document name followed by a revision number, like Process Validation Protocol AB.

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