This paper addresses key concepts in global supply chain logistics across two thematic areas. It examines factors critical to logistics planning beyond transportation — including supply chain visibility, the S&OP process, demand forecasting components, and the bullwhip effect. It then turns to supply chain performance measurement, exploring customer perception as a KPI, the challenges of comprehensive cost metrics, contribution versus net profit analysis, the return-on-assets impact of outsourcing transportation, and how the Sarbanes-Oxley Act shapes compliance requirements for logistics reporting. Together, these discussions provide a broad overview of strategic and operational considerations in modern supply chain management.
Many factors are critical to managing a successful supply chain beyond transportation alone. One such factor is supply chain visibility, which is especially important because much of the manufacturing industry relies on overseas resources, increasing transit times to thirty days or more. These delays in international shipping often represent the process constraint that defines the supply chain bottleneck. As a result, visibility of resources in transit is of the utmost importance, since the rest of the supply chain depends on the success of this phase.
Additional critical factors include simultaneous resource consideration and resource utilization. Technology can serve as a great asset in increasing visibility. Two common systems developed to help supply chains collaborate are the Advanced Shipment Notification (ASN) and the Shipment Status Message (SSM). The ability to use technology to integrate disparate companies is a vital factor in ensuring all parties can properly react to supply chain disruptions and implement strategies to overcome problems (Rabren, 2010). Having the proper channels for communication and collaboration can reduce the impact of disruptions by bringing problems to the attention of planners ahead of time.
The primary goal of sales and operations planning (S&OP) is to provide a forecast of demand that can be translated into a successful production plan. This goal encompasses both time and quantity components. When a sales forecast is accurate, it alleviates potential issues throughout the entire supply chain. It is imperative that the S&OP be as accurate as possible, because it can be just as detrimental to overproduce as it is to underproduce with regard to an organization's competitiveness in the marketplace.
The major forecast components consist of systematic components — such as level, trend, and seasonal factors — combined with a catch-all factor known as the random component (Chapter 7: Demand Forecasting in a Supply Chain, 2007). Systematic components generally rely on historical data, when available, to provide the forecasting foundation. It is important to break demand down into these more manageable components because of fluctuations caused by factors such as seasonality and the growth or decline of a product's demand relative to its position in the product life cycle. Disaggregating the forecast in this way allows it to be more accurately applied to the market across multiple periods.
Minor changes in demand at the retail level can cause a bullwhip effect throughout the entire supply chain. Retail-level demand forecasts are rarely perfectly accurate, so organizations maintain some amount of safety stock to account for demand fluctuations. When demand exceeds the safety stock reserves held by distributors, they consequently pass this burden on to manufacturers, who in turn share it with their material suppliers. Furthermore, at each step in this process, the magnitude of the demand shock increases exponentially.
"Customer value as KPI and challenges of comprehensive cost metrics"
"Fixed vs. variable cost separation for pricing decisions"
"Asset strategy, ROA, and SOX compliance in logistics"
Always verify citation format against your institution’s current style guide requirements.