Annotation

Annotation: Probabilistic models for analytical prediction of risks are presented. on the base of models supported by software tools the approaches to requirements rationale, efficiency estimation, "bottlenecks" definition and recommendations development (devoted to preventive measures on the base of analytical processing data of monitoring) are proposed in application to critically important systems. As a result the purposeful essential risks decreasing or sustaining at admissible level and-or decreasing in expenses in system life cycle are expected.