The Fat Controller is a parallel execution handler that repeatedly runs other programs, a bit like cron and Apache Daemon. It is simple to use yet has some nice features that makes it a great tool for simple and complex background processing tasks. The software is Open Source and licensed under GNU GPL v3.
My colleague Slavomír Jeleň and I are currently working on a logistics management application for an international food retailer. It’s a data-oriented application that performs pre-calculation steps on billions of rows with PL/SQL stored procedures. In order to ensure the correctness of these calculations, we devised a solution for unit testing the stored procedures in Oracle based on DBUnit.