The difference between ITIL and COBIT for consultants: four words
As a consultant, COBIT is my first-choice body of knowledge for my engagements. I go to it first* to assess, to frame, to define, to justify, to audit. I turn to ITIL second, when I need more detail, or when I need the authority of the holy of holies to justify what I suggest. There are two reasons for this:
1) COBIT is more complete and more systematic
2) four words
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(BTW, "value added product" are weasel words to avoid efforts to make British Crown data publicly available. They aren't the words I mentioned - we're still coming to that).
In order to use any content of ITIL at all for any purpose, the British Government says you must crawl through the minefield of approvals and certifications.
You can try to use ITIL content under the terms of copyright "fair use" but I think it is risky and who wants to end up wrestling with Cabinet Office lawyers? or TSO or APMG lawyers, defending their clients' privately-owned profits?
On the other hand COBIT 5 says
No part of this publication may be used, copied, reproduced, modified, distributed, displayed, stored in a retrieval system or transmitted in any form by any means (electronic, mechanical, photocopying, recording or otherwise) without the prior written
authorisation of ISACA. Reproduction and use of all or portions of this publication are permitted solely for academic, internal and non‐commercial use and for consulting/advisory engagements and must include full attribution of the material’s source.
"for consulting/advisory engagements". Four words. The entire consulting industry is freed to quote COBIT to their clients as a source of content and authority. Smart.
For the same reason, I use e-CF not SFIA. Must be a British problem.
* Actually, when I want a framework structure - one of those five reasons I go to COBIT - I sometimes use my own Tipu Framework now, as it is a superset of both COBIT and ITIL.