Structured feedback

Abstract

This work describes a proven approach to the task of initial model development for a manufacturing simulation. The approach recognizes that model development engages two groups of people in a mutual learning experience: the model builders, whose initial task is to develop an understanding of the system, and the manufacturing personnel whose initial task is to communicate knowledge of the system. The approach utilizes the fact that a model can be expressed in many forms: narrative, graphical, mathematical, computer code, and user interface. In much of the literature, the term “model” is synonymous with the coded form. However, the narrative and the graphical forms constitute excellent means of facilitating the mutual learning experience. The narrative-graphical model is developed by an iterative means called “Structured Feedback”, wherein the modelers develop a sequence of models, each being subjected to critical review in meetings with manufacturing personnel. The result of the Structured Feedback approach is a system description that all parties agree to and understand. The approach is described in the context of an electronic workcell study. Elements from the sequence of narrative-graphical models are shown. Guidelines for narrative and graphics development are presented.