Explanation
Replenishment lead time is the time between placing an order and receiving the goods1. Reducing replenishment lead time will result in lower inventory levels, as it will allow the company to order less frequently and in smaller quantities, while still meeting customer demand. This will reduce the safety stock, cycle stock, and pipeline stock that the company needs to hold, and thus lower the inventory carrying costs and risks.
The other options will not result in lower inventory levels. Level loading the MPS means producing at a constant rate regardless of demand fluctuations2. This will result in higher inventory levels, as the company will need to build up inventory during periods of low demand and draw down inventory during periods of high demand. Increasing customer service level means improving the ability to meet customer expectations and requirements3. This will also result in higher inventory levels, as the company will need to hold more safety stock to avoid stockouts and ensure high fill rates. Decentralizing inventory locations means distributing inventory across multiple warehouses or facilities4. This will also result in higher inventory levels, as the company will need to maintain more safety stock at each location to account for demand variability and uncertainty.
References : What is Replenishment Lead Time?; Level Loading Definition; Customer Service Level; Centralized vs Decentralized Inventory Management.

Explanation
Process improvement is a method of analyzing and enhancing the production methods and techniques to increase productivity and performance. Process improvement aims to reduce costs, waste, defects, and errors, as well as to improve quality, efficiency, and customer satisfaction. When considering process improvement, the first approach that should be considered is making better use of existing resources. This means that the production system should optimize the utilization andallocation of the available resources, such as materials, labor, machines, and space. This can be achieved by implementing various techniques, such as lean manufacturing, six sigma, kaizen, or 5S. Making better use of existing resources can help to improve the process without requiring additional investment or expenditure.
The other options are not the first approaches that should be considered as part of process improvement.
Hiring more skilled people to perform the job is not the first approach, as it may increase the labor cost and require more training and supervision. Hiring more skilled people may not necessarily improve the process if the existing methods and techniques are inefficient or ineffective. Buying better and faster equipment is not the first approach, as it may involve a large capital outlay and a long payback period. Buying better and faster equipment may not necessarily improve the process if the existing resources are underutilized or misallocated.
Applying stricter quality control is not the first approach, as it may increase the inspection and testing cost and time. Applying stricter quality control may not necessarily improve the process if the existing methods and techniques are prone to errors or defects. References: CPIM Exam Content Manual Version 7.0, Domain 8:
Manage Quality, Continuous Improvement, and Technology, Section 8.2: Continuous Improvement Concepts, p. 46; Process Improvement; Process Improvement Definition.

Explanation
Fill rate is the percentage of customer orders that are fulfilled without running out of inventory or placing backorders1. Fill rate is an important measure of customer service and inventory management efficiency. A high fill rate indicates that the company can meet customer demand in a timely and accurate manner, while a low fill rate suggests that the company is struggling to satisfy customer expectations.
Operating costs are the expenses associated with running a business, such as rent, utilities, wages, transportation, etc2. Operating costs are influenced by various factors, such as production volume, inventory level, technology, and quality. A high operating cost means that the company spends more money to produce and deliver its products or services, while a low operating cost means that the company spends less money to do so.
Service level is the measure of how well a company delivers its products or services to its customers, based on criteria such as availability, timeliness, quality, and satisfaction3. Service level is affected by various factors, such as demand variability, supply reliability, capacity utilization, and customer feedback. A high service level means that the company meets or exceeds customer expectations, while a low service level means that the company fails or falls short of customer expectations.
As the company continues its initiative to increase the fill rate on these parts to 100%, it is most likely that operating costs will increase faster than service level. This is because increasing the fill rate requires increasing the inventory level, which in turn increases the carrying costs, such as warehousing, insurance, taxes, and obsolescence4. Moreover, increasing the fill rate also requires reducing the variability and uncertainty in demand and supply, which may involve investing in more advanced technology, improving quality control, enhancing supplier relationships, or implementing demand management techniques5. These actions can also increase the operating costs of the company.
However, increasing the fill rate does not necessarily increase the service level at the same rate. This is because service level depends not only on fill rate, but also on other factors, such as delivery speed, order accuracy, product quality, and customer satisfaction6. Therefore, increasing the fill rate may not be enough to improve the service level significantly. In fact, there may be a point of diminishing returns, where increasing the fill rate beyond a certain level does not result in a proportional increase in service level. For example, increasing the fill rate from 95% to 99% may have a noticeable impact on service level, but increasing it from
99% to 100% may have a negligible impact on service level.

Explanation
When a certified supplier’s delivery performance declines, a company should respond initially by communicating with the supplier to investigate the source of the problem. A certified supplier is a supplier that has met certain quality, delivery, and service standards and has been approved by the company to supply goods or services without inspection or testing. A certified supplier is expected to maintain a high level of performance and reliability, as well as to report any issues or deviations that may affect the delivery process.
However, sometimes a certified supplier may experience a decline in delivery performance, which can cause delays, disruptions, or dissatisfaction for the company and its customers.
The best way to deal with a decline in delivery performance from a certified supplier is to communicate with the supplier and find out the root cause of the problem. Communication is essential for maintaining a good relationship with the supplier and for resolving any issues or conflicts that may arise. Communication can help the company and the supplier to understand each other’s expectations, needs, and challenges, as well as to identify and implement corrective actions or preventive measures. Communication can also help to restore trust and confidence between the parties and to prevent further deterioration of performance.
Tightening performance criteria for the supplier is not an appropriate initial response when a certified supplier’s delivery performance declines. Tightening performance criteria means imposing stricter standards or requirements on the supplier, such as reducing lead times, increasing penalties, or demanding more frequent reports. Tightening performance criteria may seem like a way of holding the supplier accountable and motivating them to improve their performance, but it can also have negative consequences. Tightening performance criteria can create more pressure and stress for the supplier, which can affect their quality, productivity, or morale. It can also damage the relationship with the supplier, as it may signal a lack of trust, respect, or cooperation from the company.
Establishing a temporary buffer of finished goods inventory at the supplier is not an effective initial response when a certified supplier’s delivery performance declines. Establishing a temporary buffer of finished goods inventory means storing extra units of products at the supplier’s location to compensate for any delays or shortages in delivery. Establishing a temporary buffer of finished goods inventory may seem like a way of ensuring availability and continuity of supply, but it can also have drawbacks. Establishing a temporary buffer of finished goods inventory can increase inventory costs, such as holding costs, transportation costs, or obsolescence costs. It can also reduce inventory visibility and control, as it may be difficult to track or manage the inventory at the supplier’s location. Moreover, establishing a temporary buffer of finished goods inventory does not address the root cause of the decline in delivery performance, but rather masks or postpones it.
Increasing the standard lead time of the component to allow for supplier delays is not a suitable initial response when a certified supplier’s delivery performance declines. Increasing the standard lead time of the component means extending the time between placing an order and receiving it from the supplier. Increasing the standard lead time of the component may seem like a way of adjusting to the decline in delivery performance and avoiding late deliveries, but it can also have disadvantages. Increasing the standard lead time of the component can reduce customer satisfaction and loyalty, as it may result in longer waiting times or missed deadlines for the customers. It can also reduce operational efficiency and flexibility, as it may limit the ability to respond to changes in demand or supply. Furthermore, increasing the standard lead time of the component does not solve the problem of the decline in delivery performance, but rather accepts or tolerates it.
References := Supplier Performance Metrics and Scorecard – IADC.org, Delivery Performance Explained (Measures, KPIs, and How to Improve), How to manage supplier performance – gatekeeperhq.com

Explanation
Failure Mode and Effects Analysis (FMEA) is a systematic, proactive method for identifying and evaluating the potential causes and impacts of failures in a process, product, or service1. It aims to anticipate and prevent failures by assessing the relative effect and risk of different failure modes1.
The use of FMEA would be most appropriate prior to a new product introduction (NPI). During the NPI phase, FMEA can be used to identify potential failure modes in the design of the product and assess their potential effects on the product’s performance and reliability. This allows for proactive measures to be taken to mitigate or eliminate these risks before the product is launched. FMEA is particularly useful in the early stages of design, as it helps in making informed decisions that can improve the quality and safety of the product1.
In contrast, using FMEA after a one-time quality incident investigation (A) or during evaluation of a new market opportunity may not be as effective, as these situations do not involve the design or development of a product or process. While FMEA can be used during the define phase of a Six Sigma project (B), its most impactful application is during the design phase of a new product, where it can significantly influence the final outcome.

Explanation
Sales and operations planning (S&OP) in a make-to-stock (MTS) environment is concerned with projecting inventory. S&OP is an integrated planning process that aligns demand, supply, and financial planning and is managed as part of a company’s master planning1. MTS is a traditional production strategy that is used by businesses to match inventory with anticipated consumer demand2. Inventory is the quantity and value of materials and products that are available in stock or in transit3.
S&OP in an MTS environment is concerned with projecting inventory because inventory is the key link between demand and supply. Inventory can be classified into three types: raw materials, work-in-process, and finished goods3. S&OP aims to balance the inventory levels of these types with the expected demand and supply plans, as well as the financial objectives of the company. S&OP can help optimize inventory management by:
Reducing inventory costs, such as holding, ordering, and shortage costs3.
Improving inventory turnover, which is the ratio of sales to average inventory3.
Increasing inventory availability, which is the percentage of orders that can be fulfilled from stock3.
Enhancing inventory quality, which is the degree of conformance to specifications and standards3.
The other options are not as relevant for S&OP in an MTS environment as inventory. Item forecasts are estimates of future demand for specific products or services based on historical data, market trends, or customer inputs4. Item forecasts are an input to S&OP, not an output. S&OP uses item forecasts to generate aggregate demand plans for product families or categories, which are then matched with aggregate supply plans for production capacity or resources1. Backlog is the quantity of customer orders that have been received but not yet fulfilled3. Backlog is not applicable for S&OP in an MTS environment, because MTS products are produced before customer orders are received. MTS products are delivered from stock, not from backlog. Bookings are the quantity of customer orders that have been received and confirmed3. Bookings are also not applicable for S&OP in an MTS environment, because MTS products are not dependent on customer orders. MTS products are based on forecasted demand, not actual demand.
References: Make To Stock (MTS): Definition, Example, and How It Works – Investopedia; Forecasting – Definition & Examples – ASQ; What is Sales and Operations Planning (S&OP) | Oracle; Inventory Management – Definition, Types, Objectives and Examples.

Explanation
Vendor-managed inventory (VMI) is a type of supply chain collaboration where the supplier takes responsibility for managing the inventory levels and replenishment orders of the buyer. VMI provides a benefit to the buying company in several ways, such as improving service levels, reducing stockouts, increasing visibility, and enhancing trust. One of the specific benefits of VMI is that it reduces administrative expenses for the buying company. Administrative expenses are the costs associated with the general operations and management of the business, such as salaries, rent, utilities, office supplies, and communication. VMI reduces administrative expenses by eliminating or simplifying the tasks related to inventory management, such as forecasting, ordering, invoicing, and payment. VMI also reduces administrative expenses by streamlining the communication and coordination between the buyer and the supplier, and by reducing the errors and disputes that may arise from inventory discrepancies.
References: CPIM Exam Content Manual Version 7.0, Domain 7: Plan and Manage Distribution, Section 7.1:
Develop Distribution Plans, Subsection 7.1.3: Describe how to develop supplier-customer relationships (page
66).

Explanation
Landed cost represents the total cost of a product on its journey from the factory floor to the buyer’s door. It includes the price of goods, shipment costs, insurance fees, customs duties, and any other charges incurred along the way1. Therefore, purchasing and delivering a purchased product to its final destination is the best representation of landed cost among the given options.
Combining smaller shipments to take advantage of bulk efficiencies is not a representation of landed cost, but rather a strategy to reduce it. Bulk efficiencies are the benefits or savings that result from purchasing or shipping large quantities of goods at once, such as lower unit prices, transportation costs, or handling fees. Combining smaller shipments to take advantage of bulk efficiencies can help lower the landed cost by reducing some of the charges involved in the delivery process2.
Supplier absorbing freight charges is not a representation of landed cost, but rather a condition or term of sale.
Freight charges are the fees paid to transport goods from one place to another by land, sea, or air. Supplier absorbing freight charges means that the supplier pays for the freight charges and does not pass them on to the buyer. This can affect the landed cost depending on whether the sale is based on free on board (FOB) or cost, insurance, and freight (CIF) terms. FOB means that the buyer is responsible for the freight charges and other costs after the goods are loaded on board the carrier at the point of origin. CIF means that the supplier is responsible for the freight charges and other costs until the goods reach the point of destination3.
Duties levied on imports and exports are not a representation of landed cost, but rather a component or factor of it. Duties are taxes or fees imposed by a government on goods that are imported or exported across its borders. Duties can affect the landed cost by increasing the price of goods or adding extra charges to the delivery process. Duties can vary depending on the type, value, origin, or destination of the goods4.
References := Landed Cost: Meaning & Calculator | Freightos, Landed Cost | Definition, Calculation, Formula
& Price, What Is Landed Cost? Definition And Examples, What is Landed Cost? – Definition | Meaning | Example

Explanation
The production plan is a statement of the resources needed to meet the aggregate demand plan over a medium-term horizon. The production plan is the output of the supply planning step in the sales and operations planning (S&OP) process. The production plan relates to a firm’s financial planning because it is used to identify future cash needs. Cash needs are the amount of money that a firm requires to operate and grow its business. Cash needs can be influenced by various factors, such as sales revenue, cost of goods sold, operating expenses, capital expenditures, inventory levels, accounts receivable, accounts payable, and taxes. The production plan can help to estimate the cash inflows and outflows associated with these factors, and to determine the optimal balance between them. The production plan can also help to identify the potential sources and uses of cash, such as borrowing, investing, or paying dividends. By identifying future cash needs, the production plan can help to improve the firm’s liquidity, profitability, and solvency.
References: CPIM Exam Content Manual Version 7.0, Domain 4: Plan and Manage Supply, Section 4.1:
Develop Supply Plans, Subsection 4.1.2: Describe how to develop a production plan (page 36).

Explanation
A lean relationship is a type of supplier-customer relationship that focuses on eliminating waste, improving quality, and reducing costs throughout the supply chain. A lean relationship requires a high level of collaboration, trust, and transparency between the supplier and the customer. Communication between the counterparts at the two companies is an essential activity that will enhance a successful lean relationship.
Communication can help to align the goals, expectations, and performance measures of the supplier and the customer, as well as to identify and resolve any issues or problems that may arise. Communication can also facilitate information sharing, feedback, and continuous improvement initiatives. References: CPIM Exam Content Manual Version 7.0, Domain 7: Plan and Manage Distribution, Section 7.1: Develop Distribution Plans, Subsection 7.1.3: Describe how to develop supplier-customer relationships (page 66).

Explanation
Scrap allowance is a percentage or quantity of material that is expected to be lost or wasted during the production process. Scrap allowance is usually applied to the component items in a bill of materials (BOM), which is a document that lists the materials, quantities, and relationships required to produce an end item. An increase in the scrap allowance in an assembled item will result in replanning of the component items in material requirements planning (MRP), which is a system that calculates the timing and quantity of materials and resources needed to meet the production plan. Replanning of the component items in MRP means that the system will adjust the planned order releases, order quantities, and due dates of the component items to account for the increased scrap allowance. Replanning of the component items in MRP will ensure that enough material is available to meet the demand for the assembled item, and to avoid shortages or excess inventory.
References: CPIM Exam Content Manual Version 7.0, Domain 4: Plan and Manage Supply, Section 4.2:
Implement Supply Plans, Subsection 4.2.1: Describe how to implement material requirements planning (MRP) (page 38).

Explanation
A company that has prioritized customers A, B, and C, filling orders in that sequence, will have an impact on the customer service levels for customers B and C. Customer service level is the percentage of orders that are fulfilled on time and in full. The higher the customer service level, the more satisfied the customer is with the company’s performance. When a company prioritizes customers based on their importance, value, or profitability, it means that it allocates its resources and capacity to serve the most preferred customers first, and then the less preferred customers later. This can result in different customer service levels for different customer segments. In this case, customer A is the most preferred customer, followed by customer B and then customer C. Therefore, customer A will receive the highest customer service level, as the company will fill its orders first and ensure that they are delivered on time and in full. Customer B will receive the second highest customer service level, as the company will fill its orders after customer A’s orders are fulfilled. Customer B may experience some delays or shortages if the company runs out of resources or capacity after serving customer A. Customer C will receive the lowest customer service level, as the company will fill its orders last, after customer A’s and B’s orders are completed. Customer C may face longer delays or higher shortages if the company has exhausted its resources or capacityafter serving customer A and B. Therefore, the impact of prioritizing customers A, B, and C is that customer B has a higher service level than customer C. References
:= How to Prioritize Customer Requests – Gladly, Support Ticket Prioritization – 6 Best Practices to follow,
[Customer Service Level: Definition & Calculation]

Explanation
In a lean environment, the batch-size decision for planning “A” items would be done by lot-for-lot (L4L). A lean environment is a production system that aims to eliminate waste and maximize value by applying the principles and practices of lean manufacturing1. “A” items are the most important items in an inventory system, based on the Pareto principle or the 80/20 rule, which states that 80%of the effects come from 20% of the causes2. Lot-for-lot (L4L) is an inventory ordering policy that orders exactly the quantity needed to meet the demand for each period3.
The reason why L4L is the preferred batch-size decision for planning “A” items in a lean environment is because it minimizes the inventory holding costs and reduces the risk of obsolescence or deterioration of the items3. L4L also supports the concept of pull production, which is a key element of lean manufacturing. Pull production is a method of controlling the flow of materials and information by producing only what is requested by the downstream customers or processes4. L4L aligns the production and consumption rates of
“A” items, which are typically high-demand and high-value items, and avoids overproduction or underproduction. L4L also enables faster feedback and learning, as well as better responsiveness to customer needs and expectations.
The other options are not as suitable for planning “A” items in a lean environment. Least total cost is an inventory ordering policy that orders the quantity that minimizes the sum of ordering costs and holding costs5.
However, this policy does not consider the demand variability or customer service level, and may result in large batch sizes that increase inventory levels and waste. Min-max is an inventory ordering policy that orders a fixed quantity whenever the inventory level falls below a minimum level6. However, this policy does not reflect the actual demand or consumption rate, and may result in excess inventory or stockouts. Periodic order quantity is an inventory ordering policy that orders a variable quantity at fixed time intervals. However, this policy does not synchronize the production and consumption rates, and may result in mismatched supply and demand.
References: Lean Manufacturing – Definition & Principles – ASQ; Pareto Principle – Definition & Examples – Investopedia; Lot-for-Lot (L4L) Definition | Operations & Supply Chain Dictionary; Pull Production – Definition & Examples – ASQ; Economic Order Quantity (EOQ) Definition – Investopedia; Min-Max Inventory Management: Definition & Examples – Video & Lesson Transcript | Study.com; [Periodic Order Quantity (POQ) Definition | Operations & Supply Chain Dictionary].

Explanation
The results from responding to uncertainty in the supply chain by exaggerating lead times and increasing lot sizes is called the bullwhip effect. The bullwhip effect is a phenomenon that occurs when small changes in demand at the downstream end of the supply chain (such as retailers or customers) cause larger and larger fluctuations in demand at the upstream end of the supply chain (such as wholesalers, distributors, or manufacturers). The bullwhip effect can create inefficiencies, waste, and costs in the supply chain, as well as reduce customer satisfaction and profitability.
One of the causes of the bullwhip effect is the response to uncertainty in the supply chain by exaggerating lead times and increasing lot sizes. Lead time is the time between placing an order and receiving it from a supplier.
Lot size is the quantity of units ordered or produced at a time. When there is uncertainty or variability in demand or supply, such as due to seasonality, promotions, disruptions, or forecasting errors, some supply chain members may try to cope by exaggerating lead times and increasing lot sizes. For example, a retailer may increase its safety stock or reorder point to avoid stockouts or delays, or a manufacturer may produce more than needed to take advantage of economies of scale or discounts. However, these actions can have unintended consequences, as they can distort the demand information and amplify the demand variability along the supply chain. This can result in excess inventory, low inventory turnover, high holding costs, poor service levels, lost sales, obsolete products, or capacity issues.
To prevent or reduce the bullwhip effect caused by responding to uncertainty in the supply chain by exaggerating lead times and increasing lot sizes, some possible solutions are:
Improving communication and collaboration among supply chain members to share accurate and timely demand information and forecasts.
Reducing lead times and lot sizes by using lean production techniques, just-in-time inventory systems, or quick response methods.
Implementing vendor-managed inventory (VMI) systems, where suppliers are responsible for managing and replenishing the inventory of their customers based on their actual consumption data.
Adopting advanced technologies, such as radio-frequency identification (RFID), artificial intelligence (AI), or blockchain, to enhance visibility, traceability, and coordination in the supply chain.
References := Bullwhip Effect: Meaning, Example, Impact – Investopedia, Bullwhip Effect – What Is It, Causes, Supply Chain, Examples, Bullwhip Effect: Example, Causes, and Impact on Supply Chain

Explanation
According to the web search results, the production plan is a long-term plan that establishes the quantity and timing of the end products to be produced by the company1. The production plan is based on the forecasted demand, the available capacity, and the company’s strategic objectives2. The production plan is also used to authorize and guide the master schedule, which is a more detailed and short-term plan that specifies the quantity and timing of each end product to be produced in each time period3. The master schedule is derived from the production plan, and it must not exceed the production plan’s limits. Therefore, the major contribution of the production plan is to provide authorization for the master schedule.
The other options are not correct, because they are either irrelevant or inaccurate. The production plan does not establish demand by end item, but rather responds to the forecasted demand by end item. The production plan does not identify key resources to support the master schedule, but rather determines the overall resource requirements to meet the production targets. The production plan does not establish the weekly build schedule, but rather provides the basis for the weekly build schedule, which is a more detailed breakdown of the master schedule that specifies how many units of each end product will be built in each week.
References:
Production Planning – Definition, Objectives, Types, Importance
Production Planning in Manufacturing: Best Practices for Production Plans Master Production Schedule (MPS) – Definition & Examples | Marketing Tutor
[Master Production Schedule (MPS) – Meaning & Process | Tallyfy]
[Production Planning – an overview | ScienceDirect Topics]
[Production Planning: Definition, Levels, Objectives and Factors]
[What Is a Weekly Build Schedule? | Bizfluent]

Explanation
The inventory turns ratio is a financial metric that measures how efficiently a company manages its inventory.
The inventory turns ratio is calculated by dividing the cost of goods sold (COGS) by the average inventory investment. The cost of goods sold is the direct cost of producing or purchasing the goods sold by the company. The average inventory investment is the average value of the inventory held by the company over a period of time. A higher inventory turns ratio indicates a higher inventory turnover and a lower inventory holding cost.
In this case, the company sold 8,400 units last year, and the unit cost is $207. Therefore, the cost of goods sold is:
COGS = Unit cost x Units sold = 207 x 8,400 = $1,738,800
The average inventory investment was $42,000. Therefore, the inventory turns ratio is:
Inventory turns ratio = COGS / Average inventory investment = 1,738,800 / 42,000 = 41.4 To express the inventory turns ratio as a whole number, we can round it to the nearest integer. Therefore, the inventory turns ratio is 5.
References: CPIM Exam Content Manual Version 7.0, Domain 5: Plan and Manage Inventory, Section 5.1:
Develop Inventory Plans, Subsection 5.1.2: Describe how to develop an inventory policy (page 44).

Explanation
Standardized work is a method of organizing work processes to improve efficiency, quality, and safety1. One of the benefits of standardized work is consistent cycle time, which is the time it takes to complete a task or a process. By standardizing the work sequence, the takt time, and the standard inventory, standardized work reduces the variability and unpredictability of the work flow, and ensures that each task or process is performed in a consistent and optimal manner2. Consistent cycle time can lead to other benefits, such as improved customer satisfaction, reduced waste, increased productivity, and enhanced quality3. References:
Standardized Work: What Is It and Where Is It Used? – TWI Institute
What is Standard Work: Benefits & Applications | SafetyCulture
Standard Work: The Foundation for Kaizen – Lean Smarts

Explanation
Establishment of goals and baselines prior to entering the plan-do-check-act (PDCA) cycle allows improvement teams to determine whether an effective change was made in the process. Goals are the desired outcomes or targets that the improvement teams want to achieve by implementing changes in the process1. Baselines are the current or initial performance levels of the process beforeimplementing any changes2. By establishing goals and baselines, improvement teams can have a clear direction and a reference point for their improvement efforts.
In the PDCA cycle, improvement teams follow four steps: plan, do, check, and act. In the plan step, they define the problem, analyze the root cause, and propose countermeasures. In the do step, they test the countermeasures on a small scale. In the check step, they measure and evaluate the results of the test and compare them with the goals and baselines. In the act step, they standardize and sustain the successful countermeasures or revise and repeat the cycle if needed3.
By comparing the results with the goals and baselines in the check step, improvement teams can determine whether an effective change was made in the process. An effective change is one that improves the performance of the process and meets or exceeds the goals set by the improvement teams4. If the results show that an effective change was made, improvement teams can move to the act step and implement the change on a larger scale. If not, improvement teams can go back to the plan step and identify new or revised countermeasures5.
Therefore, establishment of goals and baselines prior to entering the PDCA cycle allows improvement teams to determine whether an effective change was made in the process.
References: 1: Goal Setting Definition 1 2: Baseline Definition 2 3: What is an A33 4: How to Use an A3 Report for Problem Solving 4 5: The A3 Problem Solving Method

Explanation
Multiple sourcing is an outsourcing approach in which products or services are contracted to various suppliers needed to conduct the business instead of using traditional single sourcing1. One of the potential advantages of multiple sourcing is that it can lower the price of the products or services, as it creates competition among the suppliers and gives the buyer more bargaining power2. Another potential advantage of multiple sourcing is that it can reduce the risk of supply disruptions, as it diversifies the supply chain and makes the buyer less dependent on any single supplier3. If one supplier fails to deliver due to unforeseen circumstances, such as natural disasters, political instability, or quality issues, the buyer can switch to another supplier or use a combination of suppliers to meet the demand4. Therefore, multiple sourcing can provide lower price and reduced risk as potential advantages in the supplier selection process.
References: 1: Multi-Sourcing: Everything You Need To Know – SupplierGATEWAY 3 2: Dual sourcing:
Advantages and disadvantages – Hermes Supply Chain Blog 4 3: The Case for Making Multiple Suppliers Part of Your Supply Chain Strategy 5 4: Using Multi-Sourcing to Diversify the Supply Chain 6

Explanation
A bill of resources is a tool that is used to evaluate the impact that a production plan has on capacity. A bill of resources is a document that lists the required resources, such as machines, labor, materials, and space, for each product or service in the production plan1. A bill of resources can help estimate the total capacity requirements for the production plan, as well as the capacity utilization and availability for each resource2. A bill of resources can also help identify potential capacity gaps, bottlenecks, or excesses, and evaluate alternative production plans or resource allocations3.
A bill of resources can be created by using the following steps4:
Step 1: Identify the products or services in the production plan and their quantities and timings.
Step 2: Identify the resources needed for each product or service and their quantities and timings. This can be done by using tools such as product routings, process maps, or work breakdown structures.
Step 3: Aggregate the resource requirements for each product or service and for the entire production plan. This can be done by using tools such as spreadsheets, tables, or charts.
Step 4: Compare the resource requirements with the resource capacities and availability. This can be done by using tools such as capacity planning matrices, load profiles, or resource histograms.
Step 5: Analyze the results and make adjustments or recommendations. This can be done by using tools such as what-if analysis, simulation, or optimization.
Therefore, a bill of resources is a tool that is used to evaluate the impact that a production plan has on capacity.
References: 1: Bill of Resources Definition 1 2: Capacity Planning Definition 2 3: Capacity Planning Tools 3 4: How to Create a Bill of Resources 4