The paper presents algorithms of the multitask recognition for the decomposed dependent approach. First one, with full probabilistic
information and second one, algorithms with learning sequence. We have focused our attention on the multitask recognition
technique and its application to the computer aided diagnostic and therapeutic decision in non-Hodgkin lymphoma disease. Adequate
computer system was projected. This system has been practically implemented in Department of Hematology if Wroclaw Medical
Academy in Poland.