A framework for specifying a discrete-event simulation conceptual model

Although conceptual modelling is one of the most significant steps in the modelling process for discrete-event simulation, this step deserves greater attention in the conduct of practical projects. There are many advantages in developing a conceptual model such as less rework, the availability of documentation for post-simulation study, revision, auditing, and the possibility that someone different than the modellers will conduct the model implementation. The conceptual modelling product can be expressed in different ways depending on the modelling framework adopted. This article extends the modelling framework of Robinson. Some of the extensions addressed include data requirements in 5W1H (What? When? Where? Why? Who? How?) format, revision table (in order to register the changes in the conceptual model document), complexity description (that specifies the level of detail and scope of the model), and other features (such as input/output definitions, process description and so on). At the end of this article, we provide a real case taken from a multinational logistics company using our framework. Journal of Simulation (2013) 7, 50-60. doi:10.1057/jos.2012.18; published online 24 August 2012