From DISC PD 005 over BSI 15000 to ISO/IEC 20000. Specifications, requirements, Code of practice.
History is a myth that men agree to believe.
|ISO/IEC 20000 Timeline|
1995: British Standard Institution (BSI) published the first version of DISC PD 0005:1995 - Code of Practice for IT Service Management. It described only four basic ITSM processes.
1998: BSI publishes a revised version of DISC PD 0005:1998 and it already described all five process areas and 13 processes as we know it today.
2000: Published BS 15000:2000 - Specification for IT Service Management which was used together with the code of practice DISC PD 0005.
Also in 2000, the third supplementary document entitled DISC PD 0015:2000 IT Service Management Self-Assessment Workbook was published. It was a questionnaire that enabled anyone to make an assessment of its compliance degree with BS 15000.
Some serious revisions and rewriting followed, resulting in standard documents very similar to today's norm:
2002: BS 15000-1:2002 IT service management - Specification for Service Management;
PD 0015:2002 - Self-Assessment Workbook
2003: BS 15000-2:2003 IT service management - Code of Practice for Service Management
The same year a new PD 0005:2003 Guide to Management of IT Service Management was published with explanations of the purpose of BS 15000, and also the framework guidance on how to use the standard processes and implement them.
BSI 15000 was adopted by many service companies in UK, and countries worldwide accepted it.
- ISO/IEC 20000-1:2005 Specification is very formal, it defines processes and provides assessment/ audit criteria.
- ISO/IEC 20000-2:2005 Code of Practice that gives HOW-TOs and describes best practices for implementation of Part 1.
- ISO/IEC TR 20000-4:2010 Process reference model - describes the service management system processes implied by ISO/IEC 20000-1 at an abstract level.
- ISO/IEC TR 20000-5:2010 Exemplar implementation plan for ISO/IEC 20000 -1 - provided guidance to implementation of ISO/IEC 20000 by example and advice.
2012. February: ISO/IEC 20000-2:2012 - new Guidance on the application of service management systems published.
If someone has an update or a correction to this, I will be very glad to update the post. Thank you.
ISO/IEC 20000 Essentials
A few more words on ISO/IEC 20000
ISO/IEC 20000 Rediscovered
Describing differencies and similarities of ITIL and ISO/IEC 20000
ITIL and ISO/IEC 20000 Compared
ITIL V2 - ITIL V3 - ISO20000 comparisson table
Hope this helps. Have a nice day!