Take Two Aspirins And Call Me In The Morning

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I seem to have spent a large proportion of my time this month worrying about health. OK, so a week of that was spent in the US where, every time I turned on the TV, it scared me to death to see all the adverts for drugs to cure the incredible range of illnesses I suppose I should be suffering from. In fact, at one stage, I started making a list of all the amazing drugs I'm supposed to "ask my doctor about", but I figured if I was that ill I'd probably never have time to take them all. They even passed an "assisted suicide" law while I was there, and I can see why they might need it if everyone is so ill all of the time.

And, of course, it rained and hailed most of the week as well. No surprise there. They even said I might be lucky enough to see some snow. Maybe it's all the drugs they've been asking their doctor about that makes snow seem like a fortuitous event. Still, I did get to see the US presidential election while I was there. Or, rather, I got to see the last week of the two year process. It seems like they got 80% turnout. Obviously, unlike Britain where we're lucky to get 40% turnout, they must think that voting will make a difference. Here in the People's Republic of Europe, we're all well aware that, if voting actually achieved anything, they'd make it illegal. I wonder if the result still stands if nobody actually turns up to vote?

Mind you, it does seem surreal in so many ways. You have to watch four different news channels if you want to get a balanced opinion. And one of the morning newsreaders seemed to have a quite noticeable lisp so that I kept hearing about the progreth of the Republicanth and the Democratth. A bit like reading a Terry Pratchett novel. Or maybe it was just the rubbish TV in the hotel. And they didn't have enough voting machines so in some places people were queuing for four hours in the rain to cast their votes. Perhaps it's because there are around 30 questions on the ballot paper where you get to choose the president, some assorted senators and governors, a selection of judges, and decide on a couple of dozen laws you'd like to see passed. Obviously a wonderful example of democracy at work.

Anyway, returning to the original topic of this week's vague expedition into the blogsphere, my concerns over health weren't actually connected to my own metabolic shortcomings. It was all to do with the Designed for Operations project that I've been wandering in and out of for some number of years. The organizers of the 2008 patterns & practices Summit had decided that I was to do a session about health modeling and building manageable applications. In 45 minutes I had to explain to the attendees what health models are, why they are important, and how you use them. Oh, and tell them about Windows Eventing 6.0 and configurable instrumentation helpers while you're at it. And put some jokes in because it's the last session of the day. And make sure you finish early 'cos you'll get a better appraisal. You can see that life is a breeze here at p&p...

So what about health modeling? Do you do it? I've done this kind of session three or four times so far and never managed to get a single person to admit that they do. I'm not convinced that my wild ramblings, furious arm waving, and shower of psychedelically colored PowerPoint graphics (and yes, Dave, they do have pink arrows) ever achieve anything other than confirm to the audience that some strange English guy with a funny accent is about to start juggling, and then probably fall off the stage. Mind you, they were all still there at the end, and only one person fell asleep. I suppose as there was no other session to go to, they had no choice.

What's interesting is trying to persuade people that it's not "all about exception handling". I have one slide that says "I don't care about divide by zero errors; I just want to know about the state changes of each entity". Perhaps it's no wonder that the developers in the audience thought they had been confronted by some insane evangelist of a long-lost technical religion. The previous session presented by some very clever people from p&p talked about looking for errors in code as being "wastage", and there I was on next telling people all about how they should be collecting, monitoring, and displaying errors.

But surely making applications more manageable, reporting health information, and publishing knowledge that helps administrators to verify, fix, and validate operations post deployment is the key to minimizing TCO? An application that tells you when it's likely to fail, tells you what went wrong when it does fail, and provides information to help you fix it, has got to be cheaper and easier to maintain. One thing that came out in the questions afterwards was that, in large corporations, many developers never see the architect, and have no idea what network administrators and operators actually do other than sit round playing cards all day. Unless they all talk to each other, we'll probably never see much progress.

At least they did seem to warm to the topic a little when I showed them the slide with a T-shirt that carried that well-worn slogan "I don't care if it works on your machine; we're not shipping your machine!" After I rambled on a bit about deployment issues and manageable instrumentation, and how you can allow apps to work in different trust levels and how you can expose extra debug information from the instrumentation, they seemed to perk up a bit. I suppose if I achieved nothing other than making them consider using configurable instrumentation helpers, it was all worthwhile.

I even managed to squeeze in a plug for the Unity dependency injection stuff, thus gaining a few brownie points from the Enterprise Library team. In fact, they were so pleased they gave me a limited edition T-shirt. So my 10,000 mile round trip to Redmond wasn't entirely wasted after all. And, even better, if all goes to plan I'll be sitting on a beach in Madeira drinking cold beer while you've just wasted a whole coffee break reading this...

  • Great article! Health is wealth!

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Take Two Aspirins And Call Me In The Morning