MOA is used in the Advanced Data Mining and Integration Research for Europe (ADMIRE) project. The aim of the project is to create advanced, distributed data analysis platform, where one of the major goals is to provide ability of data stream processing. MOA has been very helpful during development of one of the use cases (churn prediction in analytical CRM), where Hoeffding tree algorithm is used to classify customers stored in large datasets. The algorithm implementation has been wrapped as Process Element (step in workflow) named “BuildIterationalClassifier”.