Test and verification of EDF's new software for the preparation of system reliability modelsAmachree, Alexis Soton (Avtor) Vihavainen, Juhani (Mentor) Draksler, Martin (Komentor) softwareuser interfaceprobabilistic safety analysisEDFSeveral shortcomings encountered while performing probabilistic safety analysis with EDF’s developed MBSA tool ‘KB3’ prompted the need for the development of a new software called Confluent. This software would automate the direct retrieval of NPP schematics from the PID thereby saving time and avoiding possible human errors from manual copying. The recently developed tool works using the approach of directly importing CAD data automatically to KB3 while describing the objects with a library containing the knowledge of the MBSA database. However, as a newly developed tool, the verification of its advanced functionalities, upgrade of its user interface, and development of the user guide are yet to be defined. In view of its deployment by 2025, these functions are envisioned. The thesis delves into the work done to establish Confluent as a user-friendly, easy, and simplified software for the safety analysts at EDF. It begins with the full comprehension of the difficulties of modelling with KB3, then several test activities are carried out to identify the possible technical limitations and finally, probabilistic risk analysis is carried out to test real-life uses of the software. The results section gives the conclusion gotten from the testing stages and the recommendations which are all delivered for further analysis in the Design Thinking Conference organised by EDF.A. S. Amachree20242025-01-07 14:21:20Magistrsko delo/naloga166322UDK: 004COBISS_ID: 211934211sl