INVENTSIMQD: GRAPHICAL USER INTERFACE (GUI) BASED TEACHING APPLICATION FOR QUANTITY DISCOUNTS INVENTORY MODELS

Abstract

ABSTRACT - The rapid growth of computer software applications proves highly beneficial as a
teaching tool for course delivery, particularly in its interactive nature compared to traditional lecture
notes. This paper introduces InventSimQD, a graphical user interface (GUI) application developed for
simulating and analyzing the quantity discount model. InventSimQD allows users to visualize the impact
of key variables in the quantity discount model and facilitates simultaneous comparison of various
discount offers, thereby enhancing students’ grasp of fundamental concepts. The development of this
simulator began with a detailed analysis of user requirements. By generating total cost curves across
different discount values, the application provides clear insights into optimal offer selection based on
volume requirements. MATLAB serves as the primary platform for compiling both the algorithm and the
user interface. One significant advantage of InventSimQD is its compatibility with any personal
computer through MATLAB Runtime, allowing installation without an official license. The accuracy of the
application's outputs has been validated through theoretical calculations and supports multiple
concurrent sessions for real-time comparison of quantity discount scenarios. Consequently,
InventSimQD empowers students to gain a comprehensive understanding of the quantity discount
model and equips them with the insights needed to effectively choose discount offers that minimize total
costs.