February 5, 2010

Another university milestone reached

Today we had to hold an official presentation of our project work and/or our bachelor thesis, which we're currently working on (or has already been finished).

I created the presentation over the time of last week and had it ready by Wednesday when we were required to hand it in for the official presentation preparation. The requirements were simple: it had to fit into exactly into an eight minute timespan and cover the basics, our goals and accomplishments of the work.

Again I tried to create a presentation which was interesting and fast-paced and covered everything essential of my bachelor thesis. According to the feedback I received I managed to do this.

I think the key for good presentations is that you intimately know everything in your presentation, each sentence and the order of appearance. It's also neccesary to have more in your mind to talk for each bullet to be able to talk about them and not just read them down from the slides and move on to the next bullet. For me this was not that easy because my retentivity skills are not as good as I wished them to be, so it was even more essential to practice the whole presentation a few times before, preferably even over the course of several days. And it's also important to not learn full sentences to talk but hang on to keywords and topics for each point you want to talk about. This allows you to speek freely and make a much more confident impression than hanging on to pre-constructed sentences. Furthermore, try to not stand still but move a bit, even if it's just a few centimeters.

Of course there are still many things to improve. This time it seems that I had problems with my gesture, keeping my hands below my waist several times which makes an insecure impression. But at least I got my Ahm'ing and Errr'ing right this time and kept it at a minimum.

Kudos also goes to all of my colleagues who held their presentation together with me. All of them were excellent, well prepared and within the given timeframe with only minor points of potential criticism. For me personally most notably was Ellla who I remember as extremely nervous and on the edge of despair when only thinking of having to present something about two years ago. Today she was just self-confidend, fluid speaking and well prepared on stage with only very minor traces of nervosness. One of the best improvements of all of us.

Sure, we all were extemely nervous before today. That's because we attended another presentation of bachelor thesises about a year ago (?) and we remember those candidates' presentations to be on the whole range from a Steve-Jobs-like presentation to almost helpless stammering (boy, this was really ugly at that time) on stage for the required length of time. And it was a much larger audience at that time because our classes were required to attend these presentations as a preparation for today. Today in contrast there were just we, our supervising teachers for the thesises and one or two more officials from the university. Small and well-known audience.

It's been a successful day for all of us, yay! :)

January 31, 2010

Another online presence - Twitter

A few days ago I've still been undecisive about Twitter and today you can already find my Twitter feed online at http://twitter.com/kosi2801.

Setup was easy and fast (of course) and the first tweet has been online in a matter of minutes. What took a bit longer was to sieve out the initial list of other people to follow. There's a massive amount of stuff which is interesting to me but many of those also have a tweet-frequency which is much to high for me or contain too much of the trivia-tweets that I've mentioned in my previous post. And I want to keep my Twitter-list at a reasonable size that I don't have to spend too much time with catching up all the tweets. The decision for each feed is not easy, does it add enough information-value for me to add their tweets to my list or does it add more noise?

For now I've settled on feeds that only add a handfull of tweets each day so I can scan over all the news in a few moments and process the linked articles (if any) also quickly. But I also know that this will take some tweaking and accustoming from my side to find out the right balance between interest and value for me.

Since I'm on Twitter now only for a short time I also have to find out how I should set up my tweet-frequency and the content in each. Currently I think it's mostly exactly the trivia I'm trying to stay away in other feeds but I hope that I will level out somewhere that other readers also get some information out of it for themselves.

Futhermore I've decided for now that I'll keep my feed in German, as this is much easier for me to tweet when I'm posting from mobile and don't have an English dictionary at my fingertips (which I use too often even for my own taste). But nevertheless I will respond to tweets and messages in any language I can understand :)

Maybe over time I'll also connect this blog and SIMsalabim to my Twitter feed as it provides a very quick contact possibility for feedback and questions. But I don't know yet if this will happen sooner or later...

January 28, 2010

Why to keep teams at a small size

Just yesterday I read the article from Joel Spolsky about A Little Less Conversation. Despite it being an article from the future, Feb. 1st, it reminded me a lot of the experiences I've collected in our company myself.

In short, Joel repeats once more the sadly not-common-knowledge that the more people are on a team the slower and less effective it gets. "Adding people to a late project makes it later!". He explains this counterintuitively effect, that the number communication paths does not grow in a linear way with the number of team members. Instead it grows much faster so that on a team with 10 people you already have 45 different paths of communication which have to be managed and synchronized. And if everyone on the team has to kept up-to-date with the information-flow the overhead for managing this information (even if just sorting into relevant/irrelevant) can quickly reach nontrivial amounts.

There are two ways to soften this problem. The one with the bigger impact is to keep your teams below a certain size. In our company the experience seems to come up that our Scrum teams work best if they do not exceed eight people. If with or without Scrum Master depends on the team. The second measure which can be taken is, that not everyone is invited or updated with information which is unrelevant for his or her position. Even more so if there is no influence possible for these people. But people also have to understand that it's not out of personal dislike or conflicts that they aren't kept up-to-date with everything on the company but that this lowered information-level allows them to concentrate more on their actual stuff which they are working on and removes a lot of unnecessary interruptions.

January 25, 2010

To twitter or not to twitter...

For quite a while now I'm having an eye on Twitter. In the beginning I soon stopped to check it regularly because most of the messages just were meaningful in a context unknown to the reader and weren't even useful as short amusement or something. Nevertheless from time to time I still looked into it especially when there were links from other blogs or news articles centering around it and its technology.

Meanwhile, while there are still lots of those low-value tweets around, some effective real-world uses have emerged. Ranging from instant news (even directly from the NASA Astronauts) to direct product support channels and even political content there are nowadays a lot of Twitter feeds which can affect a much larger audience than just personal messages. This is also represented in Twitters message question which now says "What's happening?" instead of "What are you doing?".

And because of this shift in focus and content I'm again rethinking my opinion of Twitter and really considering to join this social network. Which would also open an additional communication channel to the users who try out SIMsalabim.

But I still have to think about this a bit because currently I'm already drowning in all the news-sources I've set up on Google Reader, FeedReader and email, SMS, IM, etc. I'll already have to find some time in the future to re-check each and every feed and news-source I've listed and sift out the ones which I can really afford to spend my precious time on. And I guess with another source of instant distraction, like Twitter, this wouldn't get any easier...

January 24, 2010

Maths lecture by Prof. Rudolf Taschner

On Friday before my lectures started at the University I attended a guest-lecture of Prof. Rudolf Taschner at the [BG/BRG Kapfenberg[2]. The lecture was called "Rechnen mit Gott und der Welt" ("Calculating with God and the World"). The description in the invitation we received sounded quite interesting and because it was scheduled just before start of my real lectures I decided to join this lecture.

The content of the lecture was about how the mathematical basics have been invented and used by the stronger part of the cultures to keep suppressing the weaker ones, how it influenced the invention of writing and how it helped economics to develop.

The audience was mostly composed by 13 to 17 year old gymasiasts which in the beginning seemed to be not very happy with their presence at this lecture. But over time Prof. Taschner got their attention with really interesting explainations and funny interpretations and at the end of his lecture these gymnasiasts were applauding enthusiastically.

Never seen such young people been so excited about maths and history... If there were only more teachers able to explain their stuff like Prof. Taschner can.

January 22, 2010

First year on Stack Overflow

Almost exactly a year ago I joined the developers community on Stack Overflow. Shortly afterwards I posted my opinions on the Stack Overflow system. Today I'm still a relatively regular contributing member on the site and so far I've already earned a batch of badges and I'm approaching 3000 points, where I'll be able to vote on closure or reopening of questions.

Today I still think that the Stack Overflow system is a good one for giving and receiving immediate help on various topics. In my opinion the quality of the answers has improved over the time on common questions as did the response time which is often within the single-digit minute range. You have to have a very, very special problem to not receive a usable answer within a reasonable timeframe.

I'd still recommend this site for all software developers of all experience levels if they're stuck on a problem for a longer time. Most of the time there are people there which already have had the same problem and found a better solution long ago. Take advantage of others knowledge. I personally just enter the site from time to time and look at interesting questions where I already know the answer myself to check back if there are better solutions or different aproaches have worked for others. And just out of curiousity...

January 17, 2010

Stream urls of Austrias public radios

(For english version please scroll down a bit!)

German: Da ich schon öfter nach Urls gesucht habe, über die man die öffentlich-rechtlichen Radioprogramme Österreichs per Stream empfangen kann und nun endlich die Liste entdeckt habe (ua. hier), möchte ich euch diese natürlich nicht vorenthalten. Nachfolgend findet ihr alle (momentan) aktiven Shoutcast-Urls der Sender, sowie die direkten Stream-Urls, die zum Empfang nötig sind.

English: Because I've already been searching several times for the urls of the austrian publicly funded radio stations where you can receive the programs via streaming and I've finally found them now (among others here), I'd like to share them with you. Below you find the list of all (currently) active Shoutcast-urls of the radios as well as the direct stream-links which are required for receiving the streams.

StationShoutcastMP3WMA
Complete ORF webradio list--
Ö1 Liveradiohttp://mp3stream3.apasf.apa.at:8000VBR64kbps
Ö1 Campus / Radio 1476http://mp3stream4.apasf.apa.at:8000VBR64kbps
Ö1 Inforadiohttp://mp3stream6.apasf.apa.at:8000VBR48kbps
Hitradio Ö3http://mp3stream7.apasf.apa.at:8000VBR64kbps
FM4http://mp3stream1.apasf.apa.at:8000VBR64kbps
Radio Wienhttp://mp3stream2.apasf.apa.at:8000VBR48kbps
Radio NÖhttp://mp3stream8.apasf.apa.at:8000VBR64kbps
Radio OÖ--20kbps
Radio Salzburg--64kbps
Radio Burgenland--48kbps
Radio Steiermark--16kbps
Radio Kärnten--64kbps
Slovenski spored--64kbps
Radio Vorarlberg--32kbps
Radio Tirol--20kbps

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