Morning Coffee 140

  • I only posted one Morning Coffee post last week. It wasn’t a lack of content, it was a lack of drive on my part. I had 20-30 items flagged in my news reader, but for some reason I couldn’t work up the interest in posting them. So some of these are a bit old.
  • I’m at the Language.NET Symposium this week, so look for lots of language blogging. I’ve already chatted with Tomáš Petříček and John Lam. If someone kicks Ted Neward’s ass because he hates Perl, I’ll try and liveblog it.
  • Speaking of Ted Neward, he discusses the question “Can Dynamic Languages Scale?” without devolving into a flame-fest. I agree 100% with his point about the difference between performance scaling and complexity scaling. Personally, I tend to err on the side of better complexity scaling, since buying hardware is easier than hiring developers.
  • Nick Malik responds to me calling his shared global integration vision flawed. He points to NGOSS/eTOM as an example of a shared iterative model that works. I know squat about that shared model, so I’ll refrain from commenting until I do a little homework on the telco industry.
  • Speaking of shared interop models, Microsoft is joining DataPortability.org. Dare Obasanjo and Marc Canter are skeptical that so far this effort is all hype and no substance. Reminds me a bit of AttentionTrust.org. But if DataPortability.org can get off the ground, maybe there’s hope for Nick’s vision (or vis-versa).
  • Don Syme lists what’s new in the latest F# release. As I said, this release is pretty light on features. Hopefully, I’ll get some details
  • Tomas Restrepo shows how to change your home folder in PowerShell. I need to do this.

Morning Coffee 131

  • On a recommendation from my mother-in-law, I’ve been watching Torchwood. Sort of Men in Black, the series and set in Cardiff. Since it’s made in England, it’ll be one of the few shows still running in the new year due to the WGA strike.
  • A while back I pointed out that many DotNetKicks articles were submitted by their authors. I submitted a few of my own, just for kicks (har har), with mixed results. Today, I discovered that the parse buffer post from my Practical Parsing in F# series was submitted, picked up some kicks, and made it to the home page. That’s pretty cool. I guess writing more dev-focused articles is the way to go to get attention on DNK.
  • Amazon has rolled out a limited beta of SimpleDB, which appears to be S3 + query support. Cost is based on usage: 14¢/hour for machine utilization, 10¢/GB upload, 13-18¢/GB download and $1.50/GB storage/month. I’d love to see SimpleDB software that I could download and install, rather than hosted only. Even if I was going to use the hosted service, I’d like to develop against a non-hosted instance.
  • Research for sale! I was checking out the MS Research download feed and discovered a link to the Automatic Graph Layout (MSAGL) library. This was previously called GLEE (Graph Layout Execution Engine) and was “free for non-commercial use”. Now, you can buy it for $295 from Windows Marketplace (though the previous free version is still available). The idea of directly commercializing research like this strikes me as pretty unusual. It must be a really good library.
  • Scott Guthrie shows off the new Dynamic Data Support that will ship as part of the ASP.NET Extensions. I’m like, whatever. Scaffolding wasn’t that that interesting to me in RoR, so it’s no surprise that it’s not that interesting in ASP.NET.
  • Jeff “Party With” Palermo blogs about the IoC support in the new MVC Contrib project. Also looks like they’re porting RoR’s simply_restful. (via Scott Guthrie)
  • I need to try out some of Tomas Respro’s VS color schemes (also via Scott Guthrie)

Morning Coffee 124

  • While my blog was down last week, I finally finished Gears of War. I played thru on hardcore, but had to throttle back to casual to beat the last boss. I’d like to try and finish on hardcore, but I’ve moved on to Dead Rising – another game from last year I never had time to finish. I’m almost done the main play mode, though I understand there are other play modes that get unlocked when you finish it.
  • I’m forbidden from buying any new games before Christmas, so Mass Effect, Assassin’s Creed and The Orange Box will have to wait. My next game will either be Blue Dragon, which a friend let me borrow, or R6:Vegas, yet another (but the last) game from last year I never got time to play.
  • I’ll skip the “giving thanks” jokes and point out that Visual Studio 2008 and .NET FX 3.5 have shipped.  Soma has the announcement and both Scott Guthrie and Sam Gentile summarize what’s new. The Express editions are available from the new Express Developer Center. The VS SDK doesn’t appear to be released yet, but I’m sure it will be along in due course.
  • Speaking of VS SDK, CoDe Magazine did an entire issue on VS Extensibility which you can read online or download as PDF.
  • Nick Malik took a bunch of heat back in June for what some thought was a redefinition of Mort, one of the Developer Division personas. Now Paul Vick thinks it’s time to retire the Mort persona, primarily because of the negative connotation the name carries. His suggestion for a replacement is Ben (as in Franklin). And did you notice how similar Paul’s description of Mort is to what Nick described? I’d say some folks owe Nick an apology.
  • I said Friday I was going to take a closer look @ OpenID and OAuth. There’s an intro to OpenID on their wiki and Sam Ruby’s OpenID for non-SuperUsers seems to be the canonical source on implementing OpenID on your own blog. Frankly, reading the OpenID intro reminded me a lot of WS-Federation Passive Requestor Profile. Does OpenID have the equivalent of an “active” mode?
  • Likewise, the Beginner’s Guide to OAuth series of posts by Eran Hammer-Lahav is a good intro to OAuth. The phrase “Jane notices she is now at a Faji page by looking at the browser URL” from the protocol walkthru makes me worry that OAuth is vulnerable to phishing. Having one of the OAuth authors call phishing victims careless and wishing for Karl Rove to “scare people into being more careful and smarter about what they do online” makes me think my fears are well grounded. I’m thinking maybe OAuth and OpenID aren’t quite ready to nail down WS-*’s coffin.
  • In researching OpenID, I came across this presentation hosted on SlideShare. I had never seen SlideShare before – it’s kinda like YouTube for presentations. Sharing basic presentations is kinda lame – there doesn’t appear to be any animation support, so the slides are basically pictures. However, they also support “slidecasting” where you sync slides to an audio file hosted elsewhere. That I like. I have a bunch of old decks + audio, maybe I’ll stick them up there.

The Worst of Both Worlds

David Pallmann of Neudesic responded to my comment that “Physically distributed but logically centralized” didn’t make any sense to me at all:

What exactly does this mean? To some this may sound like a contradiction.

This simply means that a bus is physically more like the point-to-point architecture (spread out, no hub) but functionally more like the hub-and-spoke architecture (pub-sub messaging, centralized configuration and activity tracking, easy change management).

Unfortunately, I wasn’t confused about the seeming contradictory nature of these concepts. In other words, I understand the “what” and “how” of David’s physically distributed/logically centralized approach.

I don’t understand the “why”. As in, “why would you want to do this?” or “why do you think this would work at any significant scale?”.

If we check out Neudesic’s page on their ESB product (which David pointed me to) we find the following blurb:

Centralized Management
The distributed nature of service oriented programming can create a management nightmare. Neuron·ESB supports this distributed architecture while simultaneously centralizing monitoring and configuration.

SOA’s “distributed nature” is it’s primary strength. SOA’s not primarily about standards or ease-of-connectivity – though those obviously play a role. It’s about enabling decentralized decision making. Since you can’t be both centralized and decentralized, enforcing centralized management basically negates SOA’s primary strength. This seems like the worst of both worlds to me. All the hassle of distributed decision making combined with all the hassle of centralized management.

Yes, decentralized decision making can create a management nightmare. Personally, a management nightmare is much more attractive anything centralized approaches have ever delivered in the IT industry.

Dare Obasanjo recently wrote “If You Fight the Web, You Will Lose“. He was talking about the Web as a Platform, but it’s good general advice. Can you imagine applying the marketing blurb above to the Internet at large?

Centralized Management
The distributed nature of service oriented programming the Internet can create a management nightmare. Neuron·ESB supports this distributed architecture while simultaneously centralizing monitoring and configuration.

If the Internet can somehow get by without centralized management, why can’t you?

Morning Coffee 118 – ITARC SoCal Edition

I’m not back on blog sabbatical, but between finishing my presentation and attending ITARC SoCal earlier this week – not to mention being sick – I didn’t have time to write anything. Normal Morning Coffee resumes tomorrow, here’s a summary of my notes from on my two days at ITARC.

Scott Ambler did the opening keynote on agile enterprise architecture strategy.

  • He claims that success is more prevalent in the industry that people think, because the industry has a narrow definition of success. If you change (aka widen) the definition, the success rate goes way up! That’s not exactly useful, but he referred to an as-yet-unpublished survey on project success rate that should be up on DDJ “soon”. I’d like to see that raw data.
  • While I agree with most of his points, Scott’s presentation style is very abrasive. For example, he makes the point that there is no one-size-fits-all process, which I couldn’t agree with more. But does he say it like that? No, he says “Repeatable processes? What an incredibly stupid idea!” even though the room is full of folks who probably think repeatable process is actually a good idea.
  • Scott suggested that unit tests are the best way to specify requirements. I’ve heard this before from agile practitioners, but something nags at me about it. Certainly, having executable requirements is a huge plus. But how can you be sure they’re the right requirements if the stakeholders can’t read them?
  • This keynote setup what turned out to be a major theme for the conference – traditional vs. non-traditional enterprise architecture. Or as I would characterize it: Industrial vs. Post Industrial architecture.

Simon Guest presented on user experience in architecture, which is his specialty these days. He lays out a UX model that was very compelling. I’m not sure if there’s a whitepaper version of this model (there should be) but you can see the model as he lays it out in powerpoint. I’ve seen Simon’s UX decks, but never actually seen him present it, so that was a treat.

I skipped Ted Neward’s session in order to take in something new. So I went to see Daniel Brookshier of No Magic talk about DoDAF – the Dept. of Defense Architecture Framework. I had met Daniel the night before at dinner and while No Magic primarily sells UML modeling tools, we seemed to agree that UML is most useful (in my opinion “at all useful”) when you imbue the vanilla models with custom semantics – aka you turn them into a DSL. So while I liked hanging out with Daniel, his DoDAF session did nothing except ensure I never work for the DoD. There’s no amount of money that’s worth dealing with the two dozen or so bureaucratic models that are all wholly isolated from anything that actually executes. Daniel kept saying how easy these models are to build. I’m sure they are, but that’s not the problem. Since they’re not an intrinsic part of a construction process, they won’t stay up to date. This was a very industrial approach – Daniel even stated at one point that he was “anti-Ambler”.

David Chappell did the second keynote on grid-enabled SOA.

  • When did David join Oracle? I guess I haven’t been paying much attention to competitors since I moved to MSIT.
  • There’s an article version of this presentation available, but I haven’t read it yet.
  • For me, the best part of this presentation was him acknowledging that there’s a need for non-stateless services, something he has blogged about recently. I’m not sure I agree with his framework for stateful interaction, but at least he’s admitting that it’s needed. Now if I could only convince the Connected Systems Division…
  • The rest of his talk was basically a sales pitch for the Coherence product Oracle recently bought. Basically, it’s a huge, multi-node, redundant, in-memory database. While I’m sure there are a few high-end problems out there – my immediate thought was travel and David mentioned SABRE is one of their customers – this is not a good general purpose solution, though David was positioning it as such.

My talk on “Moving Beyond Industrial Software” was after the second keynote. It was good, if sparsely attended. I’m doing it again @ the p&p Summit so I’ll post the slides and hopefully a recording after that.

I skipped the last session of the day to decompress, so the next session I went to was the day two opening keynote by Fred Waskiewicz, OMG’s Director of Standards. His talk, unsurprisingly, was on the value of standards – in particular, OMG’s standards. This was about as anti-Ambler, anti-agile, pro-industrial a presentation as you could make. I’d heard this spiel before, so I mostly tuned out. I did challenge Fred on his point that the UML models are at a higher level of abstraction than code. They’re not – they’re a visualization and they’re very useful, but they’re at the exact same level of abstraction as code. That’s why you can automatically generate the visualization in tools like Visual Studio’s class designer. Fred didn’t have much of a response to my question, though he did point out that some models like Business Process Models are, in fact, higher levels of abstraction.

Next was what I thought was the best presentation of the entire show, IASA Founder Paul Preiss on what architects need to know. Note, I’m not brown-nosing Paul here – I’m the guy that first decided to commit Microsoft as an IASA sponsor, so he has to like me even if I thought his session was crap. Paul talked about architect as a career, comparing it to doctors. He worries that he’s over-using that analogy, but software architect has much more in common career wise than it does with building architects IMO. I wonder where one might do their architecture residency? He also thinks of architects as “living governance”, saying that project managers answer to the stakeholders while architects are beholden to the stockholders. I like that approach to governance.

Finally, I attended Vince Casarez’s session on Web 2.0 in the enterprise. Vince is an Oracle VP and this turned into a sales pitch like David Chappell’s keynote did. I’m not sure what product it was, but it reminded me of QEDWiki from IBM that I saw at ETech last year, which isn’t a complement. If you’re going to build an enterprise mashup designer, is it just me or is “lots of code spew” a poor model. Why not go for something like Popfly or Pipes?

I left early the second day in order to get home before my kids went to sleep (which I failed at due to lack of naptime). Overall, the conference was pretty good, though a bit sparsely attended in part I think because they held it in San Diego. The Orange Country IASA user group is very popular, so I don’t understand why they didn’t just hold it around there somewhere. Live and learn, I guess. They did have to postpone the DC event until next year sometime. Here’s hoping I get invited to that as well as well as ITARC SoCal ’08 (note, that is brown-nosing a bit)