  Reliability analysis of mechatronic systems is a recent field and a dynamic
branch of research. It is addressed whenever there is a need for reliable,
available, and safe systems. The studies of reliability must be conducted
earlier during the design phase, in order to reduce costs and the number of
prototypes required in the validation of the system. The process of reliability
is then deployed throughout the full cycle of development. This process is
broken down into three major phases: the predictive reliability, the
experimental reliability and operational reliability. The main objective of
this article is a kind of portrayal of the various studies enabling a
noteworthy mastery of the predictive reliability. The weak points are
highlighted. Presenting an overview of all the quantitative and qualitative
approaches concerned with modelling and evaluating the prediction of
reliability is so important for future reliability studies and for academic
research to come up with new methods and tools. The mechatronic system is a
hybrid system, it is dynamic, reconfigurable, and interactive. The modeling
carried out of reliability prediction must take into account these criteria.
Several methodologies have been developed in this track of research. In this
regard, the aforementioned methodologies will be analytically sketched in this
paper.
