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Posts Tagged ‘ADM’

Using TOGAF beyond IT

October 26th, 2009 No comments

Still in post-conference catch-up mode. In the meantime, here’s the slidedeck for “Using TOGAF beyond IT”, my presentation to the Open Group conference in Hong Kong. Download the file and view in Powerpoint’s ‘Notes View’ to see the full script.

Note that it explores just one question: what do we need to change in the TOGAF ADM to make it usable for any architecture purpose and any scope in whole-of-enterprise architecture. See my other presentations on Slideshare for other aspects of whole-of-enterprise architecture practice.

TOGAF-conference Twitter-stream

October 23rd, 2009 No comments

Thought it might be useful to various folks (including me!) to post the Twitter-stream from the TOGAF conference (Open Group Enterprise Architecture Practitioners’ Conference, Hong Kong) earlier this week.

For readability I’ve reversed the order so that the tweets are listed earliest-first, and I’ve edited the content slightly to remove RT ‘retweet’ duplications and general ‘personal-stuff’, so as to concentrate on what was said or commented-on during the actual presentations. But otherwise it’s the same as you’ll find on Twitter with the search-hashtag #oghk. Quite long, of course, so you’ll find the rest of this post after the ‘More…’ link.

Read more…

Post-conference catch-up

October 23rd, 2009 No comments

Just back from the TOGAF conference in Hong Kong, hence going through the usual joys of jet-lag and dealing-with-the-backlog. :-( :-)

Quick summary: seems to have been very worthwhile. More evidence of the shift towards the realisation that enterprise-architecture is about more than just IT: in fact that’s now being explicitly stated just about everywhere at the conference, though ‘the usual suspects’ are still doing not-very-much to move out of the comfort-zone of detail-level IT.

Probably the most interesting area was the formal presentation of the ‘Chinese Management Model’, apparently a government-sponsored (or at least government-promoted) model which combines some Western thinking with more traditional Chinese philosophy, drawn from Confucianism, Taoism, Buddhism and more recent Chinese views (Eight Glory and Eight Disgrace). Much of this – particularly Taoism and Buddhism – aligns well with the systems-theory frameworks that we need in order to model organisational complexity, so there’s a strong synergy there. Other local presenters, such as Professor Yao Le of Beijing University, emphasised the importance of balance across multiple dimensions and domains, using the classic yin/yang metaphor, contrasted to linear Taylorist ’scientific management’. Definitely a case of ‘Watch This Space’, it seems. :-)

Another item of wry amusement was the difference between Western and Chinese concepts of timescale and scope. Here in the West – especially in the US/Anglo context – we struggle to get business-folks to think any further than the next financial-quarter – or at very best perhaps a five- to ten-year future – and to think of any scope wider than their immediate context. By contrast, the first slide shown by the first plenary speaker, Robert Xu of software-house Kingdee International, started by showing the Chinese view of recent economic history, summarising the whole globe, starting in 1750 – in other words a quarter-millennium, not the usual Western quarter-year! A very different sense of realism, and very refreshing.

Back to catch-up: a fair bit to post to this weblog, of which the first will be a dump of the Twitter-stream from the conference. More later, then.

TOGAF for Feds

August 16th, 2009 2 comments

This one starts with a blog-post by John Polgreen, of training-group Architecting the Enterprise, called “TOGAF for Feds – Isn’t TOGAF too IT-centric for Fed EA?”. The key issue that of scope:

TOGAF is often associated with IT architecture, as opposed to the business-driven, holistic enterprise architecture espoused by the US Federal government.

John argues that whilst there’s still room for improvement, TOGAF 9 is much more business-focussed than the previous versions:

The present TOGAF definition of enterprise architecture – although holistic – doesn’t seem very business-driven: “…the description of an enterprise as a system in terms of its components, their inter-relationships, and the principles and guidelines governing the design and its evolution.” Contrast this to a definition suggested by Paul van der Merwe to be included in the next release of TOGAF: “The continuous practice of describing the essential elements of a sociotechnical organization, their relationships to each other and to the environment, in order to understand complexity and manage change.”

He then points to the TOGAF ADM (Architecture Development Method) as the solution. But to me the current structure of the ADM is a key part of the problem, not the solution. Since John asked “What are your thoughts? Is TOGAF too IT-centric for your agency? I’d very much like to hear your opinion”, I appended the following comments to his post:

The short answer to “Is TOGAF 9 too IT-centric for your agency?” depends on two factors:

  • whether you think enterprise architecture is primarily about the relationship between business and IT, versus whether it’s about the enterprise as a whole, of which IT is only one small part;
  • whether the work of the agency is centred around information (eg. IRS), versus some other domain(s) (eg. Parks & Environment)

If your concern is more with the first side of both of those two spectra – the business/IT relationship, in an information-oriented agency – then TOGAF 9 will be a very good fit, with TOGAF 9 a valued improvement over the previous version. For those contexts, the short answer would be ‘No’: TOGAF is not too IT-centric for the agency.

But the fit becomes progressively worse as you move to the other side of either of those spectra. Unlike FEAF, TOGAF has almost no concept of people (FEAF’s ‘Human Capital’), or of physical things other than IT-infrastructure (FEAF’s ‘Other Fixed Assets’). If your need is to build a whole-of-enterprise view for an agency that deals primarily with people or with physical things, TOGAF 9 provides little real gain over TOGAF 8. It’s true there are a few real improvements – such as the section on Capability-Based Planning – but in some ways it anchors the architecture even more rigidly into the IT domain. For those contexts, the short answer would be ‘Yes’: as it stands, TOGAF would definitely be too IT-centric – and in some cases even dangerously so.

The key problem-area is one of scope. The TOGAF 9 ADM retains from the previous version exactly the same fixed IT-centric scope, with a linear progression from ‘Business Architecture’ – in essence, “everything not-IT” – through ‘Information Systems’ to ‘Technology Infrastructure’. The end-point is always to clarify the design and structure of the IT-systems: everything else is peripheral to that purpose. If the architecture has any other purpose – as it will do in most agencies, especially as architecture maturity develops – the current design of the TOGAF ADM may become an active hindrance almost every step of the way.

(In principle the new section on Iterations should relieve this to some extent, but the iterations concept is not well-enough described to be useful in practice: in essence the ‘new’ ADM is still a Waterfall model with a few half-hearted attempts at Agile vaguely tacked on, with a governance model that fits neither approach well enough to be reliable – especially at an enterprise-wide scale.)

The ADM principle is sound, and provides a much-needed methodology that FEAF lacks. But for anything other than IT-oriented ‘enterprise’-architecture in information-centred agencies, TOGAF 9 is usable only if we can break free from the existing ADM’s fixed IT-centric scope. To do this, we need to rethink the detailed structure and sequence of the ADM, whilst retaining the overall principles of the methodology.

Key requirements for such a revision include:

  • stronger support and governance for Agile-style iterations
  • support for consistent management of iterations of any duration and any level of nesting
  • support for any architecture scope, dependent on the needs of each iteration
  • explicit removal of any assumptions about the centrality of IT

The latter requirement also supports architectural assessment of contexts where IT may not be involved or even available, such as in process-design and planning for some disaster-recovery/business-continuity scenarios.

For one example of one such modified version of the TOGAF ADM, see http://tetradianbooks.com/2008/10/silos-method-ref/. A matching framework to identify scope for architecture iterations is at http://tetradianbooks.com/2008/12/silos-frame-ref/.

Reference-sheets on Slideshare

June 30th, 2009 No comments

Realised that the free-download reference-sheets from the Tetradian Enterprise Architecture books would be useful to have up on Slideshare as well, so have uploaded them there for more general accessibility than solely from the Tetradian Books website.

A minor glitch in that they ended up as ‘Presentations’ rather than ‘Documents’: anyone know how to fix this? There doesn’t seem to be anything about it in the rather limited online help on Slideshare itself: odd…

Hope it helps, anyways.

More on TOGAF and certification

May 16th, 2009 11 comments

Yikes! Talk about misinterpreted in a sound-bite… :-(

(Before I go any further, a note to all in the TOGAF training/education community: from what you’ve read elsewhere, you may at present believe that I’ve been attacking you personally. As you’ll see below, this is not the case – so please accept my apologies for others’ interpretations of what I wrote. Do read on – and thank you.)

There are a few Tweets going round that suggests I’m attacking TOGAF (again), this time by suggesting that TOGAF training is worse than useless:

harsh deduction by @tetradian: TOGAF certification almost an indication that one is NOT capable of doing #EA

“… close to … a TOGAF certification is an indication that someone is not capable of doing enterprise architecture.” http://bit.ly/uZDZd

I’ll admit my original post summarising the London TOGAF conference last month does indeed include that latter quoted text. But it’s quoted way out of context: so please, do read the whole post before you jump to that conclusion! – because it isn’t what I’m saying at all.

First, it’s not my own ‘deduction’: it’s a near-verbatim report from a broader discussion at the TOGAF conference. From the certification perspective, four key themes came up from the conference, all from leading members of the TOGAF community:

  • the reference-architectures (Part VI of the TOGAF spec: ‘Technical Reference Model’ and ‘Integrated Information Infrastructure Reference Model’) are way out of date, and at the least need a complete overhaul, if not dumped altogether [that was from the Open Group's lead Allen Brown, in one of the plenary sessions]
  • “almost no-one” uses the ADM in the form described in the TOGAF specification [in my last post I said I thought that was one of the guys from Deloitte, but my notes indicate it was Mike Lambert from Architecting the Enterprise, one of the lead TOGAF training groups]
  • enterprise architecture is much broader than IT, and must now encompass the whole of the enterprise [that theme came up at least a dozen times, in plenary sessions and elsewhere]
  • enterprise architecture needs to be understood as a professional discipline, comparable to other professional disciplines such as medicine and building-architecture [again, many people, but particularly Len Fehskens, Open Group VP on Skills and Capabilities]

These are all points that, yes, I have personally pushed hard over the past few years: but you can see from the above that it’s not just me that’s saying it – it’s being echoed now right from the centre of the TOGAF community itself. (Just this once, I’m not ‘the Outsider’ here! <wrygrin>)

So, to the problem of certification. The key point is that certification alone is not an indication of professional competence. Back in my aero-engineering days, it was common knowledge that newly-graduated engineers were a potentially lethal danger to everyone in the place: they knew just enough to think that they knew what they were doing, with that arrogant certainty of the newly-qualified, but had no idea of how to work with the subtle complexities and constraints of the real world of engineering. For example, they would specify components that couldn’t actually be made, or assemblies that could be made but couldn’t physically be assembled. Even for the best, it usually took a year or two at least “to learn how to make my mathematics sufficiently imprecise to be usable”, as one of them put it. Crucially, there were a few who never learnt that lesson, and instead clung on to their certification as ‘proof’ that they were competent – which in practice more proved that they were not competent to be let loose on a real aircraft. Or, in this context, a real enterprise.

On its own – and again I’ll emphasise, on its own – an enterprise architecture certification does not and cannot indicate competence: it needs to be balanced by real-world practice. For which, again, crucially, this profession at present has no means to monitor or measure.

Next, look at what’s actually covered in the existing TOGAF certification: it’s primarily about the ’standard’ ADM and the reference-models – which are no longer used in that form in practice. And – as also indicated in those themes from the conference – real enterprise architecture is much, much broader than IT: yet everything in the existing certification is centred on IT. So anyone who does slavishly follow the ’standard’ will be almost guaranteed to create an architecture that might at first seem ‘efficient’, but will be so outdated, so IT-centric and so far off the real mark that it will at best be useless, and possibly much worse than that.

What the old TOGAF 8 certification exam did not cover was how to adapt the ADM to the enterprise, or how to create reference models and use them for compliance-monitoring and risk-management – which is what is actually most needed in those stages of architecture that the TOGAF spec aims to cover. And there’s no way that any of that kind of context-dependent knowledge could be assessed in a simplistic multiple-choice exam such as is still used for TOGAF certification. As I mentioned in the previous post, I nearly failed my TOGAF exam because in many parts of the test, none of the options shown on the screen actually matched what I knew from experience works in practice, and the nearest available guess turned out to be ‘wrong’ according to the specification in the book. Conversations at the conference made it clear that I was far from alone in that experience: in effect, anyone who presents a high score in their TOGAF certification may have the book-knowledge but know nothing about the practice, whereas many will score low because they are competent in practice. So as it stands, the TOGAF certification not only tells us nothing about professional competence, but can be actively misleading: a high score may well indicate that someone is not competent to do the work, whereas a low score indicates either high competence or complete failure, with no apparent means to distinguish between those two extremes.

All of which adds up to a serious problem.

It does not, however, mean that TOGAF training is wrong. Quite the opposite: many of the trainers I talked with at the conference made it clear that their training-courses emphasise the importance of adaptation of the ADM, development and use of reference-models, and all the other skills needed to assess and adapt to the enterprise context, and how to extend EA beyond the IT domain itself. To develop those professional skills, we’re likely to need more training, not less; and much of that training needs to be context-specific, too. The catch is that almost none of this material is in the current TOGAF specification, and none at all is assessed in the current TOGAF certification. So yes, whilst to my mind the TOGAF specification is still annoyingly limited and limiting, that’s not the real problem in this case. The point here is that, as it stands, the TOGAF certification is not only meaningless but actively misleading: and right now that is a real, genuine, active, in-your-face, fundamental problem for the profession.

This is a problem that’s being addressed: as I said in the previous post, Len Fehskens is specifically tasked with this on behalf of the Open Group, and others are tackling it in other ways with other groups. But we must first acknowledge that it is a real problem, and one that won’t go away simply by ignoring it, which is all that had been happening to date. So, yes, whilst it’s an uncomfortable fact to face, one of the key signs that the EA profession is maturing as a profession is that it is now willing to face up to such uncomfortable facts.

‘Bad’ news that’s good news all round, in fact. :-)

“Doing Enterprise Architecture” now available on Amazon

April 21st, 2009 No comments

Delighted to say that Lightning Source have done it again with my new book Doing Enterprise Architecture: a one-week turn-round from sending in the PDF source-files to delivery of the first fifty copies on my doorstep. Very impressive.

And the print-version is now available on both Amazon.com and Amazon.co.uk – those two links point direct to the respective Amazon detail-page. For other online retailers, or your local friendly independent bookstore – like the ever-helpful Red Lion Books in Colchester – use the ISBN book-number: 978-1-906681-18-0

I’ll also have copies to hand out at the TOGAF conference in central London next week – see you there, perhaps?

Please pass the word on for me, if you would? Many thanks!

TOGAF London

March 25th, 2009 1 comment

Just had confirmation from the Open Group that they’ve accepted my proposed presentation for the TOGAF London enterprise architecture conference at the end of April. Working title is Stepping-Stones of Enterprise Architecture, with the following abstract:

TOGAF 9 includes a well-described architecture capability-maturity model. This session, illustrated with practical examples from a wide range of industries, explores how to use the maturity ’stepping stones’ to guide the choice and sequence of architecture activities, in a way that expands outward to engage the whole enterprise.

The ‘takeaways’ would be as follows:

  • how to use TOGAF 9 at a whole-of-enterprise scope
  • how to use the TOGAF 9 maturity-model as architecture ’stepping-stones’
  • how to use enterprise values to bridge across the IT/business divide

In other words, the same overall themes that I’ve been pushing hard for a couple of years now, about how to adapt TOGAF and the like to work with the real enterprise, rather than solely the tiny subset that is its IT.

Variation this time is that I’m using the TOGAF maturity-model (adapted from COBIT or CMMI, I believe?) to show why we need to do things in what is actually a very different order from what TOGAF itself suggests, and why we have to bend the TOGAF-ADM quite radically in order to make it work for the real enterprise.

The detail for all of this will be in my upcoming book Doing Enterprise Architecture: process and practice in the real enterprise – which I now definitely have to finish and get published in time for the conference! (I’m still just about on schedule, but the timing will be tight – wish me luck, perhaps?)

And if you’re going to TOGAF London, I look forward to seeing you there.

Value-trees in enterprise-architecture

March 12th, 2009 3 comments

Over on the Enterprise Architecture list on LinkedIn, Bala Somasundaram asked about the concept of value-trees as a means of tracking compliance to enterprise values, and thence as a means for validating the value of enterprise architecture.

Value-trees are a key theme in the model I’ve used for describing the service-oriented enterprise. More specifically, they are the trails of ‘pervasive services’ that ensure compliance to enterprise values. In effect, they are the vertical, management-oriented analogue of the horizontal value-chains of the enterprise. But whilst the value-chains traverse through a single layer of the enterprise – the operations or service-delivery layer – the value-trees, must, by definition, pervade every part of the enterprise, from top to bottom, from abstract strategy to each individual process-step, each line of code. To give one example, we know from painful experience that quality-based themes such privacy or security or business-continuity cannot be patched on as afterthought once the design is complete: to make it work, we must include them right from the start. A key aspect of the value-tree is the trail of relationships and requirements that devolves downward from the enterprise values, and upward as confirmation that the value-requirements have been met.

In short, value-trees are the means by which the so-called ‘non-functional’ requirements are made functional in a business sense.

For the most simplistic example, assume that the only value in the enterprise is profit. (I did say it was a simplistic example. :-) ) A suite of principles devolve from this value: for example, that the outcomes of value-chain processes shall be measured in monetary terms; that costs of all activities shall likewise be measured in monetary terms (hence Activity Based Costing, for example); and that verifiable mechanisms shall be used to contrast these two sets of measurements, to derive a measurement of the value in its specified terms – i.e. profit, in this example. To do this, we’ll need to aggregate (’roll up’) all the outcomes and costs; and for management purposes, we’ll probably need to be able to disaggregate (’drill down’) through the business-units and groups and clusters, all the way back down to individual activities. The connections and transforms for aggregation and disaggregation are the branches for the value-tree.

A classic PDCA (plan, do, check, act) approach to quality-management – i.e. management of the value-tree – means that the tree itself needs to be supported by four distinct types of activities:

  • develop awareness of the value itself, and of the need to monitor the value
  • develop capability to enhance monitoring of and improvement against the value
  • measure compliance of activities against the value
  • verify and audit to monitor and enhance compliance and continual improvement

(Note that some of these may be required to be kept separate, by law or other regulation – for example, financial reporting versus financial audit.)

Next, extend the example to a slightly more realistic set of values. This leads us to something like Balanced Scorecard, which defines enterprise value in terms of four distinct themes: together with the existing financial measures as above, we add perspectives for Customer, Internal Business Processes, and Learning and Growth. Each of these themes has its own value-tree. (One reason why Balanced Scorecard implementations sometimes fail to give the desired results is that the value-trees don’t reach down far enough into the enterprise: if we take a service-oriented view of the enterprise, every activity has a ‘customer’, has its own ‘internal business processes’, and its own capability and need for ‘learning and growth’.)

To extend this further, each of the ‘-ilities’ trails of ‘non-functional’ requirements implies a root-value – for example:

  • quality (in terms of the delivered business services or products)
  • security (in all its multitudinous variations)
  • privacy
  • trust and reputation
  • health and safety
  • environment and waste-management
  • transparency and ethics
  • efficiency and effectiveness

As described well in TOGAF, each of those themes devolves outward via a set of principles, which ultimately need to link to everything. But on its own, a principle does nothing: it must be applied in practice (hence the importance of governance), and needs to be testable – and that testability must likewise ultimately link down to everything. (Testability isn’t described as such in TOGAF’s definition for the structure of principles, but is described well in Volere, the requirements-modelling process recommended in TOGAF.) The requirement-trees are the means by which the ‘develop awareness’ of the value-trees devolves downward; the tests in those requirements form part of how ‘monitor compliance’ of the value-trees rolls upward.

So a value-tree consists of the following:

  • explicit value or ‘theme’, as topmost anchor for the respective tree
  • principles that express and describe the value in practical terms (upper branches of the requirements-tree)
  • requirements and tests, all the way down to the finest-granularities (both goal-oriented [end-point] and mission-oriented [continual / continuing])
  • measurements, with tree of transforms and identifiers for roll-up and drill-down
  • support-processes (’pervasive-services’) for ‘develop awareness’, ‘develop capability’, ‘monitor compliance’ and ‘verify’

Each tree is fairly straightforward in itself: the complications arise from the fact that many of them will present conflicting requirements (e.g. security versus trust, safety versus efficiency). Because of this, there needs to be a tree of relative priorities, some of which may be imposed from ‘outside’ (e.g. legal requirement for priority of health and safety before profit). Ideally, there needs to be one single ‘master-value’ which acts as the ultimate arbiter for priorities – hence the importance of an unchanging enterprise vision.

Better stop there for now: but as usual, comments/suggestions would be most welcome!

TOGAF and SDLC

February 24th, 2009 No comments

Another item from the LinkedIn conversations.

We’d been having a detailed discussion on the internal structure of TOGAF 9, when the following comment came from one of the other participants:

“I see TOGAF 9 as an SDLC method with a bit of knowledge management. Am I missing something?”

It was clearly meant as a snarky putdown, but it’s worthwhile answering at face value.

TOGAF is a method, a framework and various other components that, together, form a quality-system.

As a metaphor, or a very approximate analogy, every quality-system is “an SDLC method with a bit of knowledge management”. COBIT is. So is ITIL, Deming’s PDCA, ISO-900x, Six Sigma, the US Army’s ‘After Action Review’, and many many other examples.

Beyond the metaphor, TOGAF is a (much larger) superset of “an SDLC method with a bit of knowledge management”. In some cases software may be involved in the end-result, but it’s not about development of software as such – it’s about development of the enterprise as whole (hence ‘enterprise architecture’, not ’software architecture’). There is quite a bit of knowledge involved, but also a strong emphasis on business purpose (i.e. emotional/relational/aspirational, not virtual), and also on dialogue, emergence and ecosystems – i.e. proactive rather than solely reactive.

When assessing the quality concerns within a quality-system itself, the devil is in the detail. Hence there’d been a lot of reference to detail in that LinkedIn thread [and hence the putdown - he couldn't be bothered to read the detail, so he decided to heckle instead]. Once we’ve identified and cleaned up the flaws and inconsistencies in the detail, we can simplify, clarify: simplicity is a desirable characteristic for an SDLC-like quality-system.

At the end, we’re after simplicity without being simplistic. Describing TOGAF as “an SDLC method with a bit of knowledge management” is a usefully simple analogy; but unless there is awareness of the detail behind that simplicity, it risks being dangerously simplistic.

By analogy, trying to build a house with virtual bricks and imaginary girders is not a good idea: looks good on paper, perhaps, but doesn’t work in practice. Likewise, trying to develop an enterprise with a software-development method is not a good idea. That’s the real distinction here.