The presented paper discusses using an agent based modelling and simulation approach to create dynamic models of actual product development activities. The modelled activities are created with the purpose to realise a decision support tool used in a Functional Product Development scenario. The decision support tool is called a Total Offer Readiness Level (TORL) and is used to assess whether the product development process is mature enough to be used in the development of a Total Offer providing only the function to the end user. The area of application and an example implementation has been developed and is shown with the purpose to highlight opportunities.