Analysis: Tanya - done - 35m [[BR]]
 * Review: 2 by Pap(15m). I don't understand how adding diagrams in PRO_LIB_CORE_TUTORIAL is related to this task. The overview is a bit messy. It is an unstructured version of the requirements. Describe the task better.
Design: [[BR]]
Implementation: [[BR]]
Testing:[[BR]]
Comments:[[BR]]