Objectives

The objectives of this training are to enable participants to acquire:

• A general knowledge of RAMST parameters (Reliability, Availability, Maintainability, Safety and Testability)
• The principles of the FTA method and its limitations
• The ability to carry out this method in a study or to be able to critique it.

Program

Introduction to the training

• Why a dependability study ?
• Why a FTA approach ?
• Concepts and definitions

FTA

• Birth of the method - Application domains
• Objectives - Interest of the method
• Definitions - Symbolisms
• Preliminary steps

Fault tree construction method

• Boolean reduction and probabilistic treatment
• Failure rates, MTBF and MTTF
• Failure probabilities on demand
• Means of obtaining data: databases, validity checks
• Comments on current difficulties and limitations (accounting for software reliability and human factors)

Fault tree synthesis

• Advantages and disadvantages
• Conclusion on the method
• Bibliographic references

Case study

• Selection of the subject/topic
• Formation of working groups, if applicable
• Participatory construction of the Tree
• Presentation of results
• Summary on the case study

The case study will serve to:

• Help understand the nature of the problems to be solved
• Present how the FTA concepts and methods provide a solution
• Approach the practical aspects

The concepts and methods will be presented by the trainer, who will supplement his presentation with simple illustrative examples.

Information request