 Okay, so we start with the session of the working group three on methods and tools before I invite the first speaker I would like to just remind you a bit What is the scope and motivation behind this third working group? Which is essentially now? initiating It's works now in the beginning of the second reporting period so the the aim of The working group is to provide an overview On the different tools and methods basically the analysis and computations that are involved in the structural health monitoring procedure with let's say a focus on On the value of information aspects We need within this context. We have Also in the past presented together with Daniel who is the chair of the of this working group and I'm the vice the vice leader this Influence diagram which basically summarizes the different parts we consider are involved in the process This was also presented in previous workshops. I'm not gonna Repeat this information, but what is important is the fact that we have now slowly started the procedure of gathering or Organizing the contributions of the fact sheets with respect to the different components of this diagram And so we already have a first fact sheet, which is the overview of this framework We have a fact sheet on Indicators that are based on vibration based Recordings you will together you will today see some presentations related to fact sheets on Bayesian analysis methods as well as a presentation on an approach to decision-making and Excuse me essentially our goal is to Start organizing the different contributions within this map This does not only this is not only limited to the working group three contributions There's actually already some contributions from working group one and two that would fit within this context, but Do keep in mind how you could potentially Contribute to the different aspects of these diagrams Okay, and so one more Note the Second contribution that you have in your agenda for today by Frank Schoff's is not going to be presented It will be posted as a fact sheet later on But it will we would instead have a presentation by Elizabeth Bismuth who works with Daniel Straub In place of that of that presentation So to initiate The presentations I would like to ask him courage to present his contribution on cost models Sorry I made a mistake, so it was the opposite the first first presentation on cost models, which Will not will not be presented. So then I moved to the presentation of Costes for body material on Bayesian analysis methods you