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Last week Stefan and me took part as guests at the para//el conference in Heidelberg. The actual program was separated into 2 keynotes, one per day, and 36 talks, 18 per day, three at a time (in parallel). Right at the beginning it was said, that we were two out of 150 participants, which, I would say, leads to a nice atmosphere. It wasn't difficult to attend a discussion or meet other people during the pauses and I haven't further experienced, quite contrary to other conferences, any large queueing at launch. Why? Well, someone encountered that a table, if placed correctly, offers space for more than one line at the buffet, which is quite a good news! 🙂


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This is the second article of a springboot & reactjs article series about server side rendering and progressive enhancement. In the first article we have learned how to render a ReactJS app on the server with nashorn. However, actually it is not really an "app" yet. Currently we just see a static list of awesome products...


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This is the first article of a series about server side rendering and progressive enhancement. We will implement a product list that can be sorted by two parameters. Furthermore the app will be progressively enhanced, means the html document is rendered on the server and javascript will just enhance the app on the client if possible.


springboot & reactjs article series

  1. server side rendering âś…

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Anstatt immer wieder zur Fortbildung auf Konferenzen zu fahren hatten wir dieses Jahr noch eine andere Idee: Wir hatten einen Inhouse-Workshop zum Thema "Visual Thinking" mit Tanja alias @frauhoelle. Ziel des Workshops war es, den Teilnehmern die Bildsprache näher zu bringen und dadurch die Kommunikation zu verbessern.


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From August 31st to September 2nd 2015 I attended the Internet of Things Conference at the nHow hotel in Berlin. Monday was a workshop day, while Tuesday and Wednesday were the actual conference days with talks and keynotes. There was a second workshop day on Thursday, in which I did not participate.

Below the fold you will find a (not that) short summary of the workshops and talks I attended.

Continue reading


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If you nowadays visit a conference, you still might get into contact with sessions where people are talking about monitoring or at least some aspects of it and ALM (application lifecycle management) is a really important discipline a team or project should should take into account right from the beginning and no, this doesn't mean that you should trim or optimize prematurely, but to have an eye on it. Next to the developers and operators we can identify many more stakeholders who are interested in the data, but generally they prefer a different view on the data.


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So that's it. Three days, 2.000 Developers from 20 countries, over 140 speakers from around the world, and one outstanding beautiful city. It is for the first time, when Devoxx Poland (previously known as 33rd Degree), one of the most recognizable European Java Conference took place in Krakow, the city of the polish kings, and one of the most important places in whole polish history. It took place from Monday to Wednesday last week in the ICE Conference Center, which is located directly by the Vistula river, with beautiful view over the Wawel Royal Castle.


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In the first part of my postings  I talked about the disadvantages of breaking epics down into technical stories and why it is preferable to create real user stories which enable us to deliver real value in each iteration.
In this part I´ll present objections that I have come across while talking with developers and product owners (POs) about 'creating value in each iteration'.


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Die Karlsruher Entwicklertage hatten Geburtstag! Zehn Jahre alt wurden sie und das mussten wir synyxler uns anschauen. Wir freuten uns auf hochwertige Talks und das Wiedersehen mit vielen Karlsruher Kollegen und bekannten Gesichtern der nationalen Entwicklerszene. Und wir wurden nicht enttäuscht! Es gab diesmal sechs parallele Tracks so dass niemand zu kurz kam. Egal ob DevOp, Coder, Scrum-Guru, Sicherheitsfanatiker oder Buzzword-Jongleur - jeder kam auf seine Kosten. Die thematische Aufteilung in Conference Day und Agile Day kam den jeweiligen Präferenzen entgegen, auch wenn der Agile Day tatsächlich nur teilweise das Thema “Agile” bediente, vermutlich aus Mangel an Speakern in diesem Bereich. Im Folgenden gehen wir auf ein paar gelungene Talks der beiden Tage ein.


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The training issue

One issue that every company has to deal with is the training of its employees. I encountered different attitudes regarding this subject in different companies and wondered what is a healthy approach for a software project company to pursue.
In software development it is not sufficient to offer one workshop per year and call it a "training program". It is also not enough to have one or two R&D dudes per 50 developers that keep ahead of new technologies and tell the worker drones from time to time what to use for their projects. The result of half-assed concepts like this will be that motivated, willing-to-learn developers look for other jobs and you will eventually remain with a bunch of static by-the-book workers who have no interest in learning. Relying solely on this can lead a company into deprecation within few years.