The domain of prof. P. Langley’s interests includes following: 1. Artificial intelligence. 2. Creation of user-adapted interfaces. 3. Cognitive architecture. 4. Estimated models of human behavior. 5. Estimated models in biology and ecology. 6. Computational scientific discoveries. 7. Taught machines. 8. Standardization of methods helping solve and plan problems. Prof. P. Langley’s interest in aging problems is linked to his professional interests. The volume of information concerning aging is huge and extremely heterogeneous. Creation of computer models for studying the aging processes is one of prof. P. Langley’s scientific goals. Prof. P. Langley develops computer model of cell aging basing upon J. Furber’s scheme of the systems biology. The model of the lysosome has been created already.