Now in most CASE tools the information collected during the stage of IS cycle analysis is not used to generate the models of the designing stage. Improving CASE systems it is offered to enlarge them with an activity knowledge basis, what becomes an additional source of information to generate project model. Activity knowledge model created in the department of data systems has been specified and activity setting system has been designed and realized during the work. System design has been conducted using programming appliances: Rational Rose Enterprise Edition 2002, Microsoft Visio Professional 2002. Use Case model generating algorithms has been created on the grounds of the activity basis. UCM models storage and software needed for its functioning have been worked out. CASE activity knowledge basis ordering system has been created on the grounds of the activity meta-model worked out in the department of data systems. Realized activity knowledge ordering system is used to extend traditional CASE systems functional possibilities. Realized CASE activity knowledge basis ordering system (Visual FoxPro 7.0) lets:  To input and adjust activity knowledge – activity elements described on the grounds of work model sequences activity procedures, activity functions, information flow, material flow and users;  To relate activity processes, activity functions, simulate their hierarchy structure;  To make accounts about the content of knowledge basis;  To generate users case... [to full text]