My Management 3.0 Experiments

My Experiments so far

Kudo Cards

I gave Kudo Cards to

  • my colleague Michi M. for preparing a nice presentation
  • my colleague Bastian B. for driving an extra tour
  • my colleague Jannik for voluntarily organizing a team event
  • our HR department for introducing a new tool for our application process
  • my CEO for giving me tips for hiring an Au Pair
  • my colleague Patrick for getting me into workshops held in our company

Personal Maps

  • in a retrospective
  • at a team gathering after getting new colleagues

Moving Motivators

  • 5 times in a hiring interview
  • 6 times in a 1on1

Sessions on Management 3.0

I held sessions at

  • Software Engineering Camp 2017
  • a Knowledge Hour in our company
  • Barcamp Nuremberg 2018
  • Barcamp Regensburg 2018

Lesson 10: Feature Scaling

What is Feature Scaling?

Feature Scaling is an important pre-processing step for some machine learning algorithms.

Imagine you have three friends of whom you know the individual weight and height.

You would like to deduce Chris’ T-shirt size from Cameron’s and Sarah’s by looking at the height and weight.

Name Height in m Weight in kg T-Shirt size
Sarah 1.58 52 Small
Cameron 1.79 79 Large
Chris 1.86 64 ?

One way You could determine the shirt size is to just add up the weight and the height of each friend. You would get: Continue reading “Lesson 10: Feature Scaling”

Differences in end of line characters

When You are working with different operating systems you encounter different line endings. Editing a file on a Linux system and opening it on a windows machine can give a weird result.

Here is a short overview which system uses which command characters:

OS Command character
Windows CR + LF
Linux LF
Mac OS <= 9 CR

DevCamp 2018


Humans are creatures of habit! Because I attendend the BarCamp 2017 at Uni Würzburg I went straight to the M2 building. I should’ve read my emails more thoroughly, actually building Z6 of University Würzburg was this event’s location. And the campus is quite large so I had to walk a bit. Bummer!

The Sessions

Due to the Management 3.0 Workshop I could only attend the second day. But it was still worth traveling to Würzburg!

Visiting barcamps since 2016, I recognize more and more campers and they recognize me as well. I was greeted with “Hey Jörn, we missed You yesterday!” by Frank and Latti. A feeling of coming home.

As always it is hard to choose your sessions from the abundance of offers.

Here are my sessions in detail:

Anti-Patterns in Code and Architecture

We talked about Love it – Change it – Leave it

SW-Development in a dead-end street?

Transition from Developer to Manager

this session was very appelaing to me, because I made the transition from being a developer to being a manager and developer

Calculate with Words – Word2Vec

Yeah! Live demo with JuPyter


ReCREWtment in IT

Recruiters from s.Oliver and Flyeralarm wanted to know what they can improve in their recruitement process.

I learned that some companies start to hire university dropour


Setup Raspberry Pi SD-Card on MacOS

To setup the SD Card on MacOS follow these steps

  • Download the Raspbian Image
  • Insert the SD-Card into the reader
  • Open a terminal
  • Find out the device’s name by typing diskutil list
  • Erase the contents / format card to FAT32
    • sudo diskutil eraseDisk FAT32 RASPBIAN MBRFormat /dev/disk2
    • sudo diskutil unmountDisk /dev/disk2
  • Copy image to card
    • sudo dd bs=1m if=path_of_your_image.img of=/dev/disk2 conv=sync

When You insert the card and the raspberry starts you can log in with

user: pi
pw: paspberry