استفاده از مدل سازی در تحقیقات مدیریت تامین / خرید The use of modelling in purchasing/supply management research
- نوع فایل : کتاب
- زبان : انگلیسی
- ناشر : Elsevier
- چاپ و سال / کشور: 2017
توضیحات
رشته های مرتبط مدیریت
مجله مدیریت خرید و تامین – Journal of Purchasing and Supply Management
دانشگاه استون، انگلستان
نشریه نشریه الزویر
مجله مدیریت خرید و تامین – Journal of Purchasing and Supply Management
دانشگاه استون، انگلستان
نشریه نشریه الزویر
Description
1. What is modelling and what are the generic types of modelling? Modelling is a simplified and usually mathematical representation of a process or a system to support decision-making or to simply understand the actual situation better. In terms of the purpose of the modelling exercise, models can be categorised into three types: descriptive, predictive, and prescriptive. Descriptive models provide insight into the past including what happened, and more usefully, why it might have happened. Such models usually constitute a base-case that can be used as a benchmark to make and test suggested improvements. Predictive models are aimed at understanding the future including what could happen given what we know about a system. Regression is one of the well-known predictive models along with time series forecasting models that are used to predict the future behaviour of a variable of interest. These predictive models represent what could happen in the future, rather than what should be done to reach a desirable outcome, which is addressed by prescriptive models.
