QUESTION $..\mathrm{.}1]$ Sketch an Ishikawa $($Fishbone$)$ diagram to analyze potential causes of decreased product quality in a factory. $[$ please draw the diagram $..$otherwise i will downvote $.]2]$ Question:

Scenario:

You are the head of operations at a mid$-$sized e$-$commerce company that specializes in home goods. Your primary responsibilities include managing inventory, optimizing shipping logistics$,$ and ensuring customer satisfaction with timely deliveries. The company operates multiple distribution centers $($DCs$)$ across the country and works with various shipping partners to deliver products to customers. Each DC has a different inventory holding cost and shipping cost to different regions. The demand for products varies by region and season. Your task is to optimize the inventory levels and distribution strategy to minimize costs while maintaining a high service level.

Data Provided:

Monthly demand forecast for four regions: North, South, East, and West.

Inventory holding cost per unit per month at each DC: DC$1,$ DC$2,$ DC$3.$

Shipping cost per unit from each DC to each region.

Service level requirement $($percentage of orders to be delivered within the promised delivery time$)$: $95\%.$

Lead time $($in days$)$ for inventory replenishment from suppliers to each DC$.$

Capacity constraints for each DC in terms of maximum inventory that can be held.

Requirements:

Inventory Optimization: Develop an Excel model to determine the optimal inventory level for each DC that minimizes the total holding and shipping costs while considering demand forecasts, capacity constraints, and lead times.

Distribution Strategy: Analyze the shipping costs and lead times to design a cost$-$effective distribution strategy that ensures the service level requirement is met for each region. Include considerations for potential delays and variability in demand.

Cost$-$Benefit Analysis: Calculate the total cost savings achieved by optimizing inventory levels and distribution strategy. Compare this with the potential impact on customer satisfaction and service levels.

Risk Analysis: Conduct a risk analysis to identify potential challenges in the supply chain, such as supplier delays or unexpected spikes in demand. Use Excel to model different risk scenarios and their impact on inventory levels and service levels.

Dashboard Creation: Design an Excel dashboard that provides real$-$time insights into inventory levels, costs, service levels, and risks. The dashboard should allow for easy monitoring and quick decision$-$making.

Deliverables:

An Excel workbook containing the inventory optimization model, distribution strategy analysis, cost$-$benefit analysis, and risk analysis models.

An interactive Excel dashboard that consolidates key metrics and insights for easy monitoring.

A detailed report summarizing the methodology, findings, recommendations, and potential impacts on cost savings and customer satisfaction.

Instructions:

Use Excel formulas, functions, and Solver for optimization problems to calculate the optimal inventory levels and distribution routes.

Implement scenario analysis using Excel's Scenario Manager or Data Tables to evaluate the impact of various risks on your supply chain.

Utilize Excel PivotTables, charts, and slicers for data analysis and visualization in creating the dashboard.

Leverage Conditional Formatting and Excel's advanced features to enhance the dashboard's interactivity and user$-$friendliness.