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  • Home
  • Portfolio
    • (Deutsch) Benchmarking
    • (Deutsch) Digitale Spedition
    • Learning system for truck drivers
    • Phone-Apps
    • (Deutsch) Lagerverwaltung für einen Großhandelskonzern
    • (Deutsch) Mobile Windkraftinspektion
    • (Deutsch) Newspaper Utilities
    • Cycosmos
    • Color management for textile printing
    • (Deutsch) Management mobiler Daten
    • Mobile education for electricians
    • (Deutsch) Notfallserver
    • Parallelize wind tunnel computing
    • Police Manuals Online
    • Programming Cookbook
    • Visualisation for Concrete Factory
  • About Karsten Meier
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Author Archives: Karsten Meier

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Saturday February 25th, 2023

Software Architecture: Layers and DTO’s

Sorry, text is curently in german only.

Posted by: Karsten Meier | Conversation: 0 comments | Category: Programming | Tags: Architektur, Java

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Friday April 10th, 2020

(Deutsch) Conway’s Law neu gelesen

Sorry, this entry is only available in German.

Posted by: Karsten Meier | Conversation: 0 comments | Category: IT-Scene | Tags: CoCreation, Traps, Innovation

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Saturday June 29th, 2019

Sorry, this entry is only available in German.

Aside: (Deutsch) Sorry, Derzeit keine Kommentare möglich. | Posted by: Karsten Meier | Conversation: comments off | Category: Mobile

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Sunday July 2nd, 2017

Sorry, this entry is only available in German.

Video: (Deutsch) Vier bemerkenswerte Videos zu Thema Microservices | Posted by: Karsten Meier | Conversation: 0 comments | Category: Programming | Tags: Java, Microservice

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Monday March 6th, 2017

Sorry, this entry is only available in German.

Status: (Deutsch) Live on Stage | Posted by: Karsten Meier | Conversation: 0 comments | Category: IT-Scene | Tags: Diagramme, Konzeption

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Tuesday February 21st, 2017

(Deutsch) Back to the 60ties: Flussdiagramme

Sorry, this entry is only available in German.

Posted by: Karsten Meier | Conversation: 0 comments | Category: Programming | Tags: Diagramme, Konzeption, UX

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Tuesday January 19th, 2016

Migrate a Ruby on Rails App to Rails 4.x with “Strong Parameters”

A helpful rake task I’m just updating a three year old rails app from 3.2 to 4.2. One of the changes is that now the controller is responsible to protect against mass assignments. I think this is the right architecture, … Continue reading →

Posted by: Karsten Meier | Conversation: 0 comments | Category: Programming | Tags: Ruby, Security

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Sunday November 15th, 2015

Quantum Computing with Ruby

Few know that you already can do quantum computing with the Japanese programming language Ruby. If you have a Ruby interpreter installed on your computer, you can follow the following experiment, which is inspired by Erwin Schrödinger. (See also my … Continue reading →

Posted by: Karsten Meier | Conversation: 4 comments | Category: Programming | Tags: Traps, Cat, Quantum, Ruby

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Saturday October 24th, 2015

(Deutsch) Smart City Salon – Logistik

Sorry, this entry is only available in German.

Posted by: Karsten Meier | Conversation: 0 comments | Category: IT-Scene | Tags: Logistik, Smart City

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Tuesday September 22nd, 2015

You find pictures from the UX-Camp 2015 and from my session about smart city at this Flickr Image Stream.

Pictures from Presentation Smart-City UX-Camp 2015

Link: Pictures from the UX-Camp | Posted by: Karsten Meier | Conversation: 0 comments | Category: IT-Scene | Tags: Smart City, UX

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About me

Hello, my name is Karsten Meier. I'm a computer scientist from Hamburg, Germany. I write since 1996 for this website about topics from life with big and small computers. And sometimes I use this site for experiments.

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Adventure Android AppEngine Challenge China Cloud CoCreation CSS Culture Design Diagramme e-learning Enterprise Gadgets Google Ilias Innovation IOT Java JavaScript JME jQuery Konzeption LMS LWUIT Mapplet MDM MFP multilingualism Mystery NFC Performance Php Python quality assurance Ruby scaling Security Smart City Sql Strings Traps UX Validations webapp

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Stack Overflow

profile for Meier at Stack Overflow, Q&A for professional and enthusiast programmers

Projects

  • Colleta
  • Coobeya
  • Handylearn Projects
  • mlearning

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