ATALT stands for:
A Transformation And Loading Tool
or
Arnulf's Transformation And Loading Tool
Together with Reporting Tools with Tcl I (apw) and some colleagues of mine have developed a tool to load data from different data sources and in different formats with some transformations into the reporting database. At that time (1995) this did include conversion from EBCDIC to ASCII! Nowadays this would be called the TL parts of ETL.
Based on the experience of that tool I want to implement a newer version of that from scratch using the ideas of that tool but implemented with a newer technology.
A more detailed description on what the functionality of that tool should be will follow here (I hope soon).