...The data structures tend to change over time, or not be known in advance, working with them must be maintained;
3. All routine work ETL should be automated wherever possible;
4. Compiling the code on the fly bail speed and reserve for the optimization;
5. Sophisticated class hierarchy guarantee easy connection of other open source solutions.
MixDEM a web based ETL tools meant for Web integration, Data transformation and Mashup edition. It include MixDEM ETL Engine created using ZEND Framework, and MixDEM GUI Editor an AJAX IDE that enable developers to quickly and easily create applications.