Computer simulations are used to represent the essential features of a real system so that analyzers can test their design skills in a convenient and safe environment. Organizations throughout the world are quickly moving to adopt process modelling and simulation as an integral part of their business decision-making and continuous improvement initiatives, due to their significant role in the design of a cost-effective system. ARENA fulfils these needs by mapping processes and simulating discrete and continuous systems. The properties of ARENA software engine involved in its ease of use and rapid mastery, power of complex system modelling, and open architecture to support user applications. This paper outlines how ARENA is applied to model, simulate and analyze the basic production processes. The case study is the bakery's production processes, at which the model creation is explained in detail and the simulation results are analyzed. This study gives a real-life example of how to use ARENA to model a complete production line in an efficient way.