SUMMARY
The problems of analysis and modeling of requirements while development of e-learning systems with feedback are considered. Subject area of requirements development is determined, choice of CASE-tools for creating models from generated subject area is explained. Visual models of functional requirements and user requirements in the form of diagrams showing the development of behavior and the logical structure of the system are developed. Simulation models explain the events and the corresponding response of the system and can represent its processes of interaction on more higher level of abstraction and allow to reveal incorrect, inconsistent, missing or redundant requirements. Consequence diagram, diagram of cooperation and state transition diagram are considered as analytical support of requirements development for intelligent e-learning systems.