Well formed problems: all problems are questions, not all questions are problems

I was listening to a talk on radio yesterday and someone was asking questions of the form “how do we make sure that entitlements go to the needy?” This is a question, but it does not define a problem. A well formed problem has: A goal Questions that must be answered in order to achieve that goal The goal is Continue reading Well formed problems: all problems are questions, not all questions are problems

Architecture is just modelling by another name

What do IT and enterprise architects really do? They create models. How many architects know anything much about modelling, as a discipline? In my experience, very few. And it shows. IMHO, it’s one of the key reasons why so many large scale IT projects fail. It’s also a prime example of the Dunning Kruger effect. Many architects who don’t understand Continue reading Architecture is just modelling by another name

The Elephant didn’t make to the UKSim conference

My paper, Nonlinearity – the Elephant in the model, didn’t make it into the UKSim 2014conference. I’m not surprised really. It was all rather rushed and I suspect that it was too confronting – but that’s just supposition on my part, I haven’t had any feedback – all I know is that it isn’t on the conference program. However, it Continue reading The Elephant didn’t make to the UKSim conference

More on the Elephant in the Model

One of the most important and critical nonlinearity in modelling is decision making. A big problem with making a decision is that you lose information – i.e. why you made the decision. e.g you need to work out what to do next. You look at various options but decide to take the “do nothing” option. Once you’ve made that decision Continue reading More on the Elephant in the Model

Nonlinearity – The Elephant in the Model and What the Elephant can Tell Us – again

After panicking to get my submission in by 15 February I got another IEEE email saying the final date for submissions is 25 February. So I did a bit more research to find if there is much on the subject of error growth in nonlinear dynamic systems in general. There’s not a lot. So I amended my paper, but discovered Continue reading Nonlinearity – The Elephant in the Model and What the Elephant can Tell Us – again

Nonlinearity – The Elephant in the Model and What the Elephant can Tell Us

On 11 February 2014, I received an IEEE call for papers for UKSim2014, the 16th International Conference on Mathematical/Analytical Modelling and Computer Simulation. Submissions were due on or by 15 February. Conference website: http://uksim2014.info In a mad panic I started to write a paper on nonlinearity, a topic that I think does not receive enough attention from the modelling community. Continue reading Nonlinearity – The Elephant in the Model and What the Elephant can Tell Us

The Zachman framework rolls on

John Zachman will be in Sydney in February delivering pretty much the same old message he wrote about 25 years ago. I got an email today from iCMG asking me if I am “exploring Zachman Certified Enterprise Architect program”. Details are available here: http://live.icmgworld.com/australia/zachman/ My reply was “Thank you for your email, however IMHO, the Zachman framework reached its use-by Continue reading The Zachman framework rolls on

The difference between an architect and a designer.

I draw a distinction between what I think an architect should do – ask questions in both the problem and solution space – and what a designer should do – ask questions only in the solution space. A designer is told what the artifact is and they go away and design it – they don’t question why the artifact is Continue reading The difference between an architect and a designer.

When the PCEHR went wrong

Projects are all about assumptions and decisions In my experience projects go wrong as soon as an invalid assumption or bad decision is made. Once one of these occur, unless it is detected and corrected, the project will fail. The earlier in a project this happens, the greater the impact and the harder it is to detect. In the case Continue reading When the PCEHR went wrong

The PCEHR: The AMA agrees with me.

The AMA’s submission is here: https://ama.com.au/system/files/ama_submission_to_pcehr_review_nov_13.pdf and their press release is here: https://ama.com.au/media/too-much-personal-control-reduces-effectiveness-pcehr My submission was based on the assertion that those developing the PCEHR did not understand the complexity of health information. The AMA has come to the same conclusion, although they have expressed their concerns in the language of health professionals. Here are some selected quotes from the Continue reading The PCEHR: The AMA agrees with me.