Christian Stuff

A XAMPP based full-stack application that allows users to create digital testing reports for oil-based heating systems. The application allowed users to manage customers, heating system locations, and inspection appointments. Its main purpose was to create the testing reports themselves and automatically send them to a configurable email address.
The application was divided into a front end using jQuery and Bootstrap and a back end based on Vanilla PHP and MySQL.
All testing reports had to match an official layout to be accepted; we used a library called HTML2PDF.
The application was set up to receive OTA updates and included a server-side license management system.
The versioning followed the SemVer approach.

A web application to allow visualization on how startup events of migrants in Germany evolved over time.
The application is written in PHP using the Slim framework and uses jQuery on the front end.
All data is managed in a custom back-end area of the website, where administrators can manage types, places, users, website settings, and the actual data.
All data can be either entered directly on a per place-type-year basis or uploaded as an Excel file.
The aim of the website is to provide the public with valid data that is usually only accessible by direct request to the statistical state offices.
The project is backed by the Federal Ministry of Labour and Social Affairs, the Federal Ministry of Education and Research, and the Federal Agency for Work. The project owner is the Institute for Social Pedagogical Research Mainz (ism).