Decision Support System for Safety Stock and Safety Time Buffers in Multi-Item Single-Stage Industrial Supply Chains

Decision Support System for Safety Stock and Safety Time Buffers in Multi-Item Single-Stage Industrial Supply Chains

Maryam Khokhar, Sayma Zia, Salman A. Khan, Syeda Tooba Saleem, Arsalan Ahmed Siddiqui, Mehdi Abbas
Copyright: © 2023 |Pages: 13
DOI: 10.4018/IJISSC.324933
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Abstract

Safety stock and safety time are two well-known stock buffering solutions of material requirements planning (MRP) processes to mitigate against supply and demand uncertainty. While the significance of proper inventory in managing change has been extensively researched, supply chain management research on safety period has gotten less attention. Earlier operations quantitative studies, in particular, have often evaluated the utilization of such stock buffers separately, rather than combined. Considering dynamic demands and stochastic timescales, the authors present the decision support system (DSS) that handle the efforts to integrate appropriate safety stock and safety time judgments at the system level in multi-item single-stage multi -supplier industrial supply chains. The DSS concept is formulated as a mixed bi-objective approach that optimizes upstream storage costs and -service levels at the same time, presenting decision-makers with alternative not dominated feasible solutions.
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1. Introduction

Supply chain is an internet backbone technology that links multiple players with the goal of providing services, products along with relevant information which add value to consumers by lowering costs (Moon et al. 2016). In these kinds of scenario, the performance of every supply chain participants is inextricably linked to how well they communicate with one another and adjust for market fluctuations. Supply chain management (SCM) is the term used to describe how such relationships are managed (Nagamanjula & Pethalakshmi 2020). Many efforts to improve customer satisfaction are made in conjunction inventory and demand management. Companies frequently use safety stock and safety time inventory reserves to deal with the demand and supply risks that come with such arrangements (Khokhar, Iqbal, et al. 2020). While the first entails adding additional stock to the usual stock, the second entails preparing order releases and scheduling their reception ahead of schedule than is necessary in the specifications plan (Bastas & Liyanage, 2018).

Considering the appropriate safety buffering factor for every product is considered among the most reliable ways for minimizing risks (Koçoǧlu et al. 2011), and it has received a lot of attention because to its significance to the OR/management research community. It is commonly recognized that appropriate inventory buffers must be calculated in accordance with trade-off involving service requirements and stock-related costs from an optimization standpoint. Previous studies have indicated essential theoretical principles for deciding among safety time along with safety stock in MRP systems with buyers and sellers variability (Buzacott & Shanthikumar, 1994). Nevertheless, OR (operational research) modelling strategies for measuring inventories throughout several stock control situations have seen increased growth in recent years (Khokhar 2019), the writings on techniques for optimal generalization of safety time – that is often set gained through experience in industrial practice – is lacking (Taherdoost & Brard, 2019). More crucially, the research has provided minimal understanding of how these 2 buffering techniques might be combined for attaining desired service levels at least cost by usually evaluating the usage of safety supplies and safety times separately.

In contrast, I’m interested in seeing if, and under what conditions, combining both buffering solutions seems to not to be a costly strategy than looking at either safety times or safety stocks separately. I’m particularly interested in learning more about how the size of demand volatility & supply delay, and also the reparability of required materials plans, affect this combination. I present a bi-objective hybrid modeling framework to simultaneously optimize safety time & safety stock choices in multi-component multi-supplier single-stage global supply chains involving buffering in supply and dynamic demands to overcome these issues (HOU et al. 2021). My achievements to managing inventory can be divided into four categories: 1. to jointly estimate safety time and safety stock limits in systems of MRP, I suggest a DSS as per the bi-objective hybrid optimization technique. 2. I look at how target delivery sparsely & supply/demand fluctuation affect the selection of the most cost-effective stock buffer. 3. More over we offer suggestions to practitioners and decision-makers concerned in the best conceptualization of buffer stock buffering solutions that is the key issue impacting MRP effectiveness (Klabusay & Blinks, 1996).

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