Laboratory of Modelling and Optimization for Decisional, Industrial and Logistic Systems (MODILS), Faculty of Economics and Management of Sfax, University of Sfax, 3039 Sfax, Tunisia.
Mechanics, Modelling and Production Research Laboratory (LA2MP), Mechanical Department, National School of Engineers of Sfax, University of Sfax, Sfax, Tunisia.
Ann Pharm Fr. 2024 May;82(3):493-506. doi: 10.1016/j.pharma.2023.10.013. Epub 2023 Nov 2.
Demand forecasting is a vital step for production planning and consequently, for supply chain efficiency, especially for the pharmaceutical (pharma) supply chain due to its unique characteristics. Numerous models and techniques that are proposed in the literature but little in concrete and generic framework to forecasting process, mainly for pharmaceutical supply chain. Unlike studies in the literature, this study not only perfectly predict the sales of a pharma manufacturer, but also visualize the results via a developed dashboard using modern information technology and business intelligence.
In this research, a rolling forecasting framework comprising of different steps and specialized tools is proposed that can assist supply chain managers to perform an accurate sales forecasting and consequently a better performance and specifically patient satisfaction. The proposed generic framework combines the use of Visual studio C++ software to extract optimal forecasting and the Power BI software to monitor the accuracy of the obtained sales forecasts. Three exponential smoothing methods are integrated in the proposed framework, which is open to adding more new forecasting methods.
The proposed framework is tested for many data sets from a pharmaceutical manufacturer company, and the results obtained show superior performance, especially a clear decline in both forecast errors, which can reach 75% and a drop of stock level to 50%. Therefore, the company is currently using it and a future integration with their ERP is being carried out.
The proposed rolling forecasting framework contributes to insightful decision-making through the visualization of accurate future sales and turnover, and consequently, an efficient stock management and effective production planning.
需求预测是生产计划的重要步骤,因此对于供应链效率也至关重要,尤其是对于具有独特特征的制药(pharma)供应链。文献中提出了许多模型和技术,但针对制药供应链的具体和通用预测流程的框架却很少。与文献中的研究不同,本研究不仅能够完美预测制药制造商的销售情况,还通过使用现代信息技术和商业智能开发的仪表板来可视化结果。
在这项研究中,提出了一个包含不同步骤和专业工具的滚动预测框架,该框架可以帮助供应链经理进行准确的销售预测,从而提高绩效,特别是提高患者满意度。所提出的通用框架结合了使用 Visual studio C++软件提取最佳预测以及使用 Power BI 软件监控获得的销售预测准确性。该框架集成了三种指数平滑方法,可随时添加更多新的预测方法。
该框架已针对制药制造商公司的多个数据集进行了测试,结果表明其性能优异,尤其是预测误差明显下降(可达到 75%),库存水平下降(可达到 50%)。因此,该公司目前正在使用它,并正在与他们的 ERP 进行未来集成。
所提出的滚动预测框架通过可视化准确的未来销售和营业额,有助于做出明智的决策,从而实现高效的库存管理和有效的生产计划。