Why the ISO High Level Structure is so important!
ISO has written the requirements for many management systems over the years for a range of different disciplines including such things as quality management, food safety, information security, asset management, and business continuity.
Now each time a new one of these standards get developed a technical committee is established of experts from within the discipline and around the world.
The technical committee over a period of time – and it tends to take a fair while; then writes, reviews, amends, reviews again, and eventually agrees and approves the requirements for their particular discipline. For example, Quality has Technical Committee TC 176, Environment TC 207, and Asset management TC 251.
Now because each technical committee is different, they write the standards and the requirements differently. So whilst they often have common elements such as training and competence, records management, corrective action, and the like. The particular requirements for each could be different, which of course makes it different for organizations to not only understand but also to implement. This was increasingly difficult for organizations that needed to comply with multiple standards and who also had to deal with multiple auditors.
Back in 2012 and because ISO means “same” the powers that be in ISO decided that whilst disciplines did have their own specific technical needs and requirements, the structure, text, and terms and definitions of management system standards should be the same, and as a result ISO developed and released the High-Level Structure (HLS) which all technical committees are required to use.
What this means is that when a new management system standard is developed or an existing one reviewed and revised the result should align with the High-Level Structure. This should not only make these standards simpler to understand from a user point of view but also much simpler to write and develop from a technical committee point of view.
Essentially it is non-discipline-specific management system with all the required wording except the discipline is replaced with XXX. For example, it states in section 7.3 Awareness,
Persons doing work under the organization’s control shall be aware of:
So we can see that the XXX just gets replaced with the applicable standard title, such as, information security, food safety, asset management, and so on. The technical committee then just adds anything else it needs to ensure all its specific requirements are covered. Importantly the technical committee is not allowed to remove anything from the High-Level Structure.
This High-Level Structure consists of the following 10 clauses,
Therefore in the future all management system standards should have the same look and feel. This though will take some time and whilst some standards already follow this high level structure like ISO 9001:2015, ISO 14001 and ISO 55001:2014, others have yet to reviewed and converted to this common format, such as ISO 22000 Food safety management systems.
Finally, even though ISO is mandating that all the management system standards should share this common structure – ISO is definitely not saying that an organizations management system should follow this format. Organizations are required to develop management systems that meet the needs of their operation, the knowledge and competency level of their people, and the requirements of those interested in the organization.
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