Posts Tagged Øredev
Oredev 2009
Posted by Angelo van der Sijpt in Uncategorized on November 6th, 2009
Update 2010-05-08
The video of my session is up! Check it out at http://oredev.com/videos/dynamic-deployment-with-osgi.
This past week (4 – 6 November), I went to Øredev, probably the largest developer conference in Scandinavia. I had been invited as a speaker, thanks for having me!
Great food, nice ambiance
The first thing that strikes me about this conference is how well it has been prepared. The food is great, there is a good evening program, and overall both your inner geek and inner person are well looked after.
Highlights
Interactive Visualizations from Microsoft research – Eric Stollnitz (User Experience track)
One of the rare talks I actually did not like. Having not read the session description properly, I had totally wrong expectations; the session demoed visual tools like Photosynth, which are cool, but not something we haven’t seen before. And besides, running Vista on a Mac, and having to kill Internet Explorer…?
Open source Java: ten things you didn’t know you could do – Terrence Barr (Java track)
Early in the talk it felt like a plug for the greatness of Sun, making Java open source. Later, however, it mentions some seriously cool technology that has become possible now! Some honorable mentions,
- The Maxine guest VM is an effort to run a Java VM directly on a HyperVisor, skipping the entire OS!
- IKVM.NET is a project aiming to run Java code on a .NET VM. Somehow, it turns out that Java bytecode and .NET assembly language are so similar, that an effort has been started to create automatic translation tools between compiled Java and compiled .NET (and vice versa). I would like to add that this is allows not only Java to run on a .NET VM, but likely any language that runs on the Java VM! Interesting…
- Zero writes a Java VM in plain C without using assembler code, making it easier to port it to new platforms.
The Manager’s Guide to Agile Adoption – Mike Cottmeyer (PM In Practice track)
A great talk showing the issues that might hamper agile adoption, especially in larger organizations. Some snippets,
- “Agile adoption at the team level is not the issue, it’s adopting agile across teams.”
- Don’t speak of features of a system, speak of capabilities (think about that one!)
- Depending on the amount of dependencies between teams, we could use a Scrum of Scrums (resource dependency), Product Owner team (requirements dependency), or a Product Owner team with Architects (technical dependencies). Whatever method is used, this higher level should build a normalized backlog, intended to create some alignment along the teams. The team’s backlogs are based on this normalized backlog.
- Feature teams will break down at some level; at a certain system size, it’s no longer possible to create a top-to-bottom slice of the system which is small enough for a single team to manage.
In short, I really enjoyed this talk, and I feel there might be some applications for these ideas somewhere near me…
How Exactly Can Developers Create a Compelling User Experience? – Ben Galbraith (User Experience track)
Exactly the way I would expect a user experience talk to look (and feel!) like: polished imagery, a well-oiled story line, and lots of inspiration. Besides, I have two new books to add to my reading list: About Face by Alan Cooper, which seems to be the standard volume on interaction design, and The humane interface by Jeff Raskin.
Reconsidering cherished design dogmas – Johannes Brodwall & Finn-Robert Kristensen (Architecture track)
I actually had a beer with these guys a few days earlier, and they told me about their ideas. In short, there are a number of dogmas in software design we came to hold true, but are they actually true? For instance, is generic code really more reusable than specific code?
It’s a shame the talk didn’t really come across, and I could not put my finger on the problem; it might have something to do with the over-abstracted example they chose.
Dynamic Deployment with OSGi – Angelo van der Sijpt (Java track)
Well, let the crowds decide on this one. Have you visited my talk, and have an opinion about it? Let me know in the comments?
Modeling in the Age of Agility – Kevlin Henney (Agile Architecture track)
“Working software over comprehensive documentation” sounds good, but how about modeling? Are all models potential waste? Of course not, but when applying modeling because it is modeling, is sure to create models no one will ever look at, and the few good ones in there are buried. Some snippets,
- “Agile is all about doing.” Actually, I did not know the word ‘Agile’ comes from the Latin verb for ‘to do’.
- “The most important aspect of modeling is the -ing.”
So?
Like I said, a great conference, and I’m sorry I missed the test track. I will leave you with a quote I picked up on Twitter (I don’t know which session it’s from),
“Don’t build frameworks, extract them”
Øredev 2008 day one
Posted by Marcel Offermans in Uncategorized on November 19th, 2008
Sharing knowledge, that’s the theme for the yearly Øredev conference, held in Malmö, Sweden, and that really sums up the spirit and wealth in sessions nicely. After visiting the conference with Karl for the first time last year, I decided to go there again this year. What makes Oredev such a nice conference is that it contains a lot of different and interesting tracks, so it’s not just about Java, or .NET, but also about Scrum, mobile development, languages in general and project management.
The opening keynote was by Ted Neward who talked about The Next Big Thing(tm), which he thinks is a renaissance of languages. The main reason for that is one that we have acknowledged within luminis, and that is that current languages (Java, C#, …) fail miserably when it comes to handling concurrency and really exploiting distribution of tasks amongst all available cores and nodes. Functional languages like Erlang, which we studied in a research project early this year, cope a lot better with that. With all these languages, the gap between researchers, who create these languages, and practitioners, who just want to use them to get real work done, also becomes more obvious. This gap is mainly caused by different interests of both groups and their inability to effectively give feedback to each other. An example he used was the time it took for object oriented languages to become popular: about 25 years, from the initial Smalltalk language to C++, which first used the concept of objects in a commercial setting. Ted argued that objects are not all that great, and that we probably need other ideas to go along with them to improve upon the way we work.
During the first day, I attended quite a few sessions on different subjects. A session on the Java ME SDK showed the integration of all ME components (CLDC, CDC) in an environment with better emulation and on device debugging support. The presentation itself had some basic demos, and one showing a SunSpot which showed off the sensors API. In overtime they mentioned the BluRay project, which is also supported, and the fact that they will add support for JavaFX. Later that same day, Josh Marinacci actually did a good presentation on JavaFX script, showing only three slides and developing sample applications on the spot. He showed some of the nice features of the new language and also demoed the Photoshop CS3 integration. A third presentation by Sun, done by Terence Barr, contained some demos that exposed the new features of the Java Mobile Services Architecture. A Marble Madness demo, showing off hardware accelerated Java3D and the motion sensor API was nice. He also showed how a single JavaFX application could be deployed on the desktop, as an applet and on a phone, but I’m still wondering who would like to use a UI designed for a phone on a 30″ cinema display. Then again, that does mean you can show about 200 applications side by side.
Rickard Oberg did a very good session on Qi4j, a domain-driven development language that builds on standard Java. Basically it tries to make the gap between code and the domain model as small as possible. He explained how an application, originally created using Spring, would have looked had it been done using Qi4j. It definitely sounds like Qi4j is ready to be used in a research experiment, possibly by also rebuilding some existing piece of code. I discussed this idea with Rickard, who was very enthousiastic about the idea and would love to hear the feedback that came from that.
Ken Gilmer from BugLabs showed “the bug” again. For those new to the bug, it’s basically Lego Mindstorms on steroids, really cool stuff for geeks! Having seen his talk already at EclipseCon 2008 earlier this year, some of it was familiar. The new thing was the fact that he showed they completely published the specs for the “bug” components so anybody is free to create their own hardware modules. After the talk I briefly talked to Ken. They’re still having some issues to solve before they can ship the thing abroad. An interesting thing to note is that he was interested in our device manager donation to Apache Felix, so perhaps we can get some feedback from them on how that runs on Concierge.
In the evening, a session about the principles of open space, coupled with an experiment with that, were conducted, but after dinner I spent most of the time in a 2 hour session with Alef Arendsen who demo’ed Spring DM and did a nice job of explaining how they use OSGi. After a long day, at around 10 in the evening, I stepped out of the conference building for a refreshing walk back to the hotel. To be continued! 