L4M7 Whole Life Asset Management Question and Answers

Explanation

Economic order quantity (EOQ) model is the method that provides the company with an order quantity. This order quantity figure is where the record holding costs and ordering costs are mini-mized. By using this model, the companies can minimize the costs associated with the ordering and inventory holding. In 1913, Ford W. Harris developed this formula whereas R. H. Wilson is given credit for the application and in-depth analysis on this model.

If the economic order quantity model is applied, the following assumptions should be met:

- The rate of demand is constant, and total demand is known in advance.

- The ordering cost is constant.

- The unit price of inventory is constant, i.e., no discount is applied depending on order quantity.

- Delivery time is constant.

- Replacement of defective units is instantaneous.

- There is no safety stock level, i.e., the minimum stock level is zero.

- Restocking is made by the whole batch.

Because the demand and lead time are constant, no stockout events can occur.

Explanation

Opening stock is the starting amount of inventory that a business has at a fixed moment in time. This could be the start of a financial year, another reporting period or ad hoc stocktake. The concept of opening stock mush not be confused with raw materials

Closing stock is the inventory held at the end of the period under consideration. Thus, the closing stock of one period is automatically the opening stock for the next.

Work in progress is the stock part-way through a manufacturing process; in the service sectors the term is also used for anything between order and delivery.

Buffer stock (safety stock) is the stock held as a contingency or insurance against disruption or unexpected demand.

LO 2, AC 2.1

Explanation

Material Requirements Planning (MRP) software manages material requirements for manufacturing processes.

LO 2, AC 2.3

Explanation

According to Hines and Rich, value stream refers to specific parts of the firms that actually add value to the specific product or service under consideration. XYZ Ltd is mapping the value stream by analysing the value-adding activities that contribute to their most important product.

Postponement is a business strategy which maximizes possible benefit and minimizes risk by delaying further investment into a product or service until the last possible moment. An example of this strategy is Dell Computers' build-to-order online store. One of the earliest references to the concept was in a paper by Zinn and Bowersox in the Journal of Business Logistics. They highlighted five types: Labelling, Packaging, Assembly, Manufacturing and Time postponements.

Kanban (看板) (signboard or billboard in Japanese) is a scheduling system for lean manufacturing and just-in-time manufacturing (JIT). Taiichi Ohno, an industrial engineer at Toyota, developed kanban to improve manufacturing efficiency. Kanban is one method to achieve JIT. The system takes its name from the cards that track production within a factory. For many in the automotive sector, kanban is known as the "Toyota nameplate system".

Put simply, silo working occurs when several departments or groups within that organisation do not want to share information or knowledge with other individuals they work with.

Explanation

Cross-docking is the practice of unloading goods from inbound delivery vehicles and loading them directly onto outbound vehicles. By eliminating or minimizing warehouse storage costs, space requirements and inventory handling, cross-docking can streamline supply chains and help them move goods to market faster and more efficiently.

Cross-docking usually takes place in a dedicated docking terminal in a warehouse, where inbound goods are first received at a dock and sorted according to their final destinations. They are then moved to the other side of the dock via forklift, conveyor belt or other equipment and loaded on outbound vehicles.

Cross-docking works best with products that need to be transported quickly, such as food, that have already been sorted and labeled for customers, do not need quality inspections or have steady demand.

Explanation

Net present value (NPV) is the 'today' net value that deprives from 'future' cash flow of an invest-ment or a capital purchase. Net Present Value is a helpful tool for assessing the total lifetime value of an investment. Procurement professionals or investors can base on this value to make decision to achieve value for money. Generally, an organisation should select the offer which has the highest NPV among their options. Preferably, the NPV of an capital investment should be positive, which means the investment eventually adds value to the business.

Explanation

The purposes of a warehouse are to keep the inventories in good condition and to ensure that the operations is smooth. In the scenario, the warehouse has 2 stories, with goods-in and goods-out areas located on the ground floor and a lift connecting the stories. The lift could become a bottleneck if the goods inside the warehouse are not well-arranged.

Since the lift is often small with limited load capacity, putting heavy bulk items on the first floor will cause bottleneck and increase the chance of accidents. Therefore, palletised items (even they have low-usage) should be placed on the ground floor. Smaller and lighter items should be stored on the first floor.

This QUESTION NO: does appear in the real exam. To answer the question, students should imagine the situation.

Explanation

Material requirement planning (MRP) is a production planning and material (inventory) control system used in manufacturing. Objectives of MRP are to ensure materials are available for production while minimising inventory and to plan production and procurement activities.

Bill of materials (BOM) is an important component of MRP. BOM is also known as product struc-turer. This lists all the items that comprise each assembly and sub-assembly that make up the final product or end item. Therefore, MRP is commonly used to manage dependent demand stock.

Explanation

The amount of closing stock (properly valued) is used to arrive at the cost of goods sold in a periodic inventory system with the following calculation:

Opening stock + Purchases - Closing stock = Cost of goods sold

Explanation

The purposes of stores and warehouses are:

1. Maximum use of space.

2. Ready access to all items.

3. Efficient movement of goods.

4. Effective utilization of labour & equipment’s

5. Maximum protection of items

6. Good-house-keeping.

Explanation

The main improvements from ERP to ERP II are the following:

- ERP II is web enabled as compared to Conventional ERP Which is not.

- ERP is restricted to provide selected exhaustive or rigorous or wide-spread coverage in its mod-ules. But as compared to ERP, ERP II provides the true and accurate blend of the macro and the micro and affords customers with curative actions/measures after identifying the slip-up/error or fault;

- ERP was embattled more headed for manufacturing or industrialization and the dilemma or difficulty is conquer in ERP II by endowing clarification for all kind of industries and sectors.

- ERP is not in the position or could not possibly integrate/incorporate diverse functions from di-verse departments/divisions but ERP II could possibly do so as well as from different industries as compared to conventional ERP.

- For WEB and WAP connectivity ERP II grip CRM and SCM Functionalities.

- ERP II be obliged the function and purpose to an external/outdoor one and smooth the progress of better networks than remaining as internal/interior application.

Explanation

LO 2, AC 2.3

Explanation

Warehouse dock is a feature of warehouse design - used for unloading and loading vehicles. It is crucial to carefully design where they are externally located in a facility and choose the best type of dock depending on the available space.

In many cases efficient and effective loading and unloading is achieved by a dock design that places the loading and unloading vehicle' rear platform at the same height as the warehouse floor.

Slopes in docking areas must always be as small as possible: the gentler the slope, the less chance of errors and accidents. If a warehouse is going to be used by large volume vehicles, such as high cubes, it may be necessary to install special devices, such as hydraulically adjustable docks or ground level lift platforms.

Current trends indicate that vehicles that are longer and wider and have a greater volume will be increasingly common. Therefore, when planning the location of the docks, it would be useful to ensure that there is a large area for the approach, manoeuvring and build-up of large vehicles.

One option to increase the efficiency of the docks is to combine reception and dispatch into a single area (dual use). This solution drastically reduces costs and, above all, increases the use of handling equipment and personnel. However, if this is justified by the volume of material flows, there can also be separate access points for each function (some for reception and others for dispatch - 'sole use').

Explanation

Organisations often create their own stock keeping unit (SKU) numbering system, which may or may not have a meaningful structure. Stock keeping unit is a number that is assigned to a product for the purpose of inventory management and is of tracking. In other words, a stock keeping unit is a unique identifier assigned to each product for easier and more efficient record keeping.

An FDA (US Food and Drug Administration) product code describes a specific product and contains a combination of five to seven numbers and letters. The product code submitted with each FDA line item should match the actual product name and/or invoice description of the product.

The International Standard Book Number is a numeric commercial book identifier which is in-tended to be unique. Publishers purchase ISBNs from an affiliate of the International ISBN Agency.

The Harmonized Commodity Description and Coding System, also known as the Harmonized System (HS) of tariff nomenclature is an internationally standardized system of names and numbers to classify traded products.

Explanation

There are several methods to reduce the acquisition costs in procurement. L4M7 study guide lists the following methods:

- Buyer discretionary spend

- 'User buying'

- Vendor managed inventory (VMI)

- Two-bin Kanban

- Product catalogue

- e-Procurement techniques, including some systems such as ERP, procure-to-pay (P2P), e-requisition, e-tendering, etc.

- Procurement cards

Explanation

Master production schedule (MPS) plans items that have “direct” demand, or “independent de-mand.” With independent demand, the demand comes from sales orders, service orders, or fore-casts, and the demand comes directly from customer—or forecasted—requirements. It is the list that provides the timing of the production schedule and shows how much each machine can produce, how many shifts are used, etc.

A bill of materials (BOM) is a comprehensive inventory of the raw materials, assemblies, subas-semblies, parts and components, as well as the quantities of each, needed to manufacture a product.

Explanation

A 'U' flow occurs when the goods receipt and dispatch functions are located at the same end of a warehouse building.

Products flow in at receiving, move in to storage in the back of the warehouse, and then to shipping, which is located at the adjacent to receiving on the same side of the building.

Items with higher throughput level are located closer to the loading bays. An example of a 'U' flow design can be seen in the diagram below.

Diagram Description automatically generated

Advantages of 'U' Flow

- Excellent utilization of dock resources because the receiving and shipping processes can share dock doors

- Facilitating cross-docking because the receiving and shipping docks are adjacent to one another and may be co-mingled

- Excellent lift truck utilization because put away and retrieval trips are easily combined and be-cause the storage locations closest to the receiving and shipping docks are natural locations to house fast moving items

- Yields excellent security because there is a single side of the building used for entry and exit

Explanation

Mounting or embedding RFID tags on metal can be tricky. Metal surfaces reflect energy emitted from RFID readers and create interference for RFID tag antennas, which means the tag isn't able to receive power and transmit information; however, specific RFID tags will work around metal sur-faces. RFID companies have patented technology that allows RFID to work when attached to metal surfaces and even embedded within metal products. As long as you choose the correct RFID equipment for your environment and application, you won't need to worry about interference from metal.

Explanation

The safety stock (or buffer stock) is the stock level that limits stock shortages due to unforeseen events (forecasts not in line with demand, longer than expected supply time, etc…)

Demand variance is the degree to which the demand in a fixed period deviates from the average demand of the same period.

A reorder point is the unit quantity on hand that triggers the purchase of a predetermined amount of replenishment inventory.

The just-in-time (JIT) inventory system is a management strategy that aligns raw-material orders from suppliers directly with production schedules.

Explanation

An exponential moving average (EMA) is a type of moving average (MA) that places a greater weight and significance on the most recent data points. The exponential moving average is also referred to as the exponentially weighted moving average. An exponentially weighted moving average reacts more significantly to recent price changes than a simple moving average (SMA), which applies an equal weight to all observations in the period.

Explanation

Delphi method was developed in the 1950s, originally to forecast the impact of technology on warfare. The method entails a group of experts who anonymously reply to questionnaires and subsequently receive feedback in the form of a statistical representation of the "group response," after which the process repeats itself. The goal is to reduce the range of responses and arrive at something closer to expert consensus. The Delphi Method has been widely adopted and is still in use today. Delphi method is a subjective forecasting technique

Holt-Winters forecasting is a way to model and predict the behavior of a sequence of values over time—a time series. Holt-Winters is one of the most popular forecasting techniques for time series. It’sdecades old, but it’s still ubiquitous in many applications, including monitoring, where it’s used for purposes such as anomaly detection and capacity planning.

Time series analysis is a statistical technique that deals with time series data, or trend analysis. Time series data means that data is in a series of particular time periods or intervals.

Objective forecasting approaches are quantitative in nature and lend themselves well to an abun-dance of data. There are three categories of objective forecasting methods: time series, caus-al/econometric, and artificial intelligence.

LO 2, AC 2.3

Explanation

Direct and indirect costs of holding inventory include the following:

- Acquisition costs: preparing the requisition, supplier selection and approvals, time and costs of the procurement process, etc.

- Holding costs

- Costs of stockouts

LO 2, AC 2.2

Explanation

In principle, use of any materials involves an environmental cost. Some packaging materials use a lot of natural resources and energy to produce. The journey taken by packaging from raw material to manufacturing and then to the initial user also incurs a 'carbon footprint'. The weight of packag-ing contributes to the fuel usage of vehicles while the volume used can add up to additional jour-neys or the use of larger vehicles. Finally, the reuse, return, disposal or recycling will also involve additional to the environmental cost.

In this question:

- 'Purchase the packaging materials in bulk' may incur additional fuel and carbon footprint in delivering these materials

- 'Try to reduce the costs of packaging' may prompt the organisation to use less eco-friendly and cheap materials like polystyrene chips

- 'Not use the packaging materials at all' can increase the environmental performance of packag-ing activities, but it also harms the products to be delivered and may cause other environmental problems (i.e. spillage of toxic chemicals into the environment)

So the correct answer should be: 'Adopt international environmental packaging standards'. The International Standards Organisation (ISO) has published several standards regarding packaging and environment, namely ISO 18601, ISO 18602, ISO 18603, ISO 18604, ISO 18605, ISO 18606.

Explanation

Price setting mechanisms fall into two main categories: fixed and variable. A fixed price mecha-nism is a straightforward concept which typically results in a relatively stable budget that can be forecast. Variable mechanisms have an element of variable pricing per unit bought.

Setting a fixed price mechanism is in theory a relatively simple and straightforward concept, where the collector and the buyer agree on a fixed price for a specific material or mix of materials, for a certain length of time.

All other pricing mechanisms that are not fixed have an element of variable pricing per unit bought.

The most common variable pricing mechanisms can be divided into two groups:

1. Where the benefit accruing to the buyer from acquiring the material is used to calculate what the payment to the seller should be; or Approaches to Materials Sales: A guide for local authorities

2. Where the price paid is indexed to a published source of market price information. The above scenario demonstrates variable pricing mechanism using published sources on inflation rate and exchange rate. CIPS also refers this mechanism as adjustable prices.

Explanation

The total cost of storage consists of two different costs:

- The cost of warehouses: each one has a different cost, and each has the cost of stock-holding and stock management included

- The transport costs: the total transport cost reduces as further warehouses mean shorter final delivery to the customers.

Depending on each situation, the optimal number of warehouses varies. Generally, more facilities will increase the cost of warehouses while reduce the transport costs and vice versa.

Explanation

According to L4M7 study guide, acquisition costs in procurement are the costs associated with the activities involved in a purchase. A buying organisation incurs acquisition costs in low-value purchases as well as high-value purchases. The following purchases tend to have lower acquisition costs:

- Straight re-buy from a current supplier

- Purchase of standard catalogued products

Otherwise, any purchases of high value, high-risk items generally require greater attention of buying organisation and thus, they are likely to have higher acquisition costs. Spot purchase of a technically complexed machinery, Purchase of ERP system and Procurement of construction projects are examples of high-value, high-risk purchases.

Explanation

Material requirement planning (MRP) is a production planning and material (inventory) control system used in manufacturing. Objectives of MRP are to ensure materials are available for production while minimising inventory and to plan production and procurement activities.

MRP process is described in the graph below:

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Explanation

Reorder point is the point either in time or in a process when the next order should be placed.

Explanation

One-dimensional (or 1D) barcodes systematically represent data by varying the widths and spac-ings of parallel lines. These include some of the most traditional and well-recognized barcode types, such as the UPC and EAN codes. 1D barcodes are also commonly referred to as linear barcodes.

Two-dimensional (2D) barcodes look like squares or rectangles that contain many small, individual dots. QR codes, Data matrix and Aztec codes are examples of 2D barcodes

Numerical code contains all numbers, no letters

There are two different scan engine types (laser scanner versus imager) for interpreting the infor-mation provided in the barcode. Many companies producing the technology capable of reading the barcode data uses the term “scanning” regardless of the type of scan engine used. For the purposes of these FAQs, we are trying to draw a clearer distinction for you.

Linear (1D) codes can be scanned with a traditional laser scanner. A laser scan engine uses a laser and mirror to create the bar that scans the information. 1D barcode scanners will only interpret the linear barcode scanning technology. 1D barcode scanners are typically less expensive since the type of encryptions they can decode is limited.

Diagram Description automatically generated

LO 1, AC 1.2

Explanation

Direct and indirect costs of holding inventory include the following:

1. Acquisition costs

2. Holding costs (carrying costs) are the costs associated with the storage and handling of physical stock. There are two different types of holding costs:

a. Costs related to the value of the goods: financial costs (i.e. the interest on the working capital tied up in inventory, which may be the bank borrowing rate or the company's target for return on capital); cost of insurance; losses due to product deterioration; losses due to obsolescence and redundancy of inventory; losses due to theft, accidental damage etc.

b. Costs related to the physical characteristics of the inventory include the following: storage space; power, heat and lighting of the store; movement equipment; labour costs; administration costs.

3. Costs of stockouts

Explanation

All risk management processes follow the same basic steps, although sometimes different jargon is used to describe these steps. Together these 5 risk management process steps combine to deliver a simple and effective risk management process.

Step 1: Identify the Risk. You and your team uncover, recognize and describe risks that might affect your project or its outcomes. There are a number of techniques you can use to find project risks. During this step you start to prepare your Project Risk Register.

Step 2: Analyze the risk. Once risks are identified you determine the likelihood and consequence of each risk. You develop an understanding of the nature of the risk and its potential to affect pro-ject goals and objectives. This information is also input to your Project Risk Register.

Step 3: Evaluate or Rank the Risk. You evaluate or rank the risk by determining the risk magni-tude, which is the combination of likelihood and consequence. You make decisions about whether the risk is acceptable or whether it is serious enough to warrant treatment. These risk rankings are also added to your Project Risk Register.

Step 4: Treat the Risk. This is also referred to as Risk Response Planning. During this step you assess your highest ranked risks and set out a plan to treat or modify these risks to achieve acceptable risk levels. How can you minimize the probability of the negative risks as well as enhancing the opportunities? You create risk mitigation strategies, preventive plans and contingency plans in this step. And you add the risk treatment measures for the highest ranking or most serious risks to your Project Risk Register.

Step 5: Monitor and Review the risk. This is the step where you take your Project Risk Register and use it to monitor, track and review risks.

Explanation

Purchase order lead time (POLT) refers to the number of days from when a company places an order for production inputs it needs, to when those items arrive at the manufacturing plant.

LO 2, AC 2.3

Explanation

VACUUM LIFTER uses the vacuum pad which attaches itself to a product. The suction force al-lows the product to be lifted (and rotated and placed). Vacuum lifters are used for moving and positioning glass sheets, but are also seen lifting boxes, plastic sacks, sheets of building materials and pipework. Some models feature hydraulic arms which allow easy movement of the lifted load. The lifting system will have a number of sucker pads and vacuum capability which determines the maximum weights and largest items that can be lifted.

DOLLY consists of stack and sets of wheels (either casters or rollers) under the stack that allow the dolly and the heavy object on top of it to move easily and smoothly. For moving in a straight line, rollers is ideal. If you want to move manoeuvrability, dolly with sets of casters will let you swivel and turn.

SACK TRUCK (hand truck) is an L-shaped box-moving handcart. It comprises a small base plat-form with two wheels at the base and a larger vertical structure. A small ledge to set objects on flat against the floor when the sack truck is upright. When moving, the truck and object are then tilted backward based on the vertical structure until the weight is balanced over the large wheels, making otherwise bulky and heavy objects easier to move.

PALLET STACKER is designed to lift and stack pallets. This one is fully mobile so can move easily around the warehouse. An operator would typically sit or stand while driving like a counter-balanced, reach or straddle lift truck.

LO 1, AC 1.3

Explanation

Obsolescent stock is stock, usually finished goods, which is in good condition and satisfactory working but for which demand is irreversibly falling towards zero. Once this demand reaches zero the stock canbe considered 'obsolete'. It cannot be used or sold in its current state. Food ingredients (like candy canes) which are out of date are another example.

Explanation

Lean thinking aims to remove wastes from work processes. Before diving into the 8 wastes, it is important to understand what waste is. Waste is any action or step in a process that does not add value to the customer. In other words, waste is any process that the customer does not want to pay for.

The original seven wastes (Muda) was developed by Taiichi Ohno, the Chief Engineer at Toyota, as part of the Toyota Production System (TPS). The seven wastes are Transportation, Inventory, Motion, Waiting, Overproduction, Overprocessing and Defects. They are often referred to by the acronym ‘TIMWOOD’. The 8th waste of non-utilized talent or ‘Skills’ of workers was later introduced in the 1990swhen the Toyota Production System was adopted in the Western world. As a result, the 8 wastes are commonly referred to as ‘TIMWOODS’.

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Source: The lean way

Explanation

Fixed-Time Period System (or Periodic Review system) is the inventory management system in which inventory is checked in fixed time periods, T, and the quantity ordered varies.

The imprest system is a form of financial accounting system. The most common imprest system is the petty cash system. The base characteristic of an imprest system is that a fixed amount is re-served,which after a certain period of time or when circumstances require, because money was spent, it will be replenished.

So the correct answer should be "Items are reviewed as part of an imprest system"

LO 2, AC 2.3

Explanation

Typically, ordering costs include expenses for a purchase order, labor costs for the inspection of goods received, labor costs for placing the goods received in stock, labor costs for issuing a supplier’s invoice and labor costs for issuing a supplier payment. These costs are irrelevant from the size of the order and are incurred every time a firm places an order.

The total ordering cost will be equal to ordering cost per order multiply with number of orders.

Explanation

A cost-benefit analysis is a process businesses use to analyze decisions (such as capital investment). The business or analyst sums the benefits of a situation or action and then subtracts the costs associated with taking that action.

A cost-benefit analysis (CBA) should begin with compiling a comprehensive list of all the costs and benefits associated with the project or decision.

The costs involved in a CBA might include the following:

- Direct costs would be direct labor involved in manufacturing, inventory, raw materials, manufacturing expenses.

- Indirect costs might include electricity, overhead costs from management, rent, utilities.

- Intangible costs of a decision, such as the impact on customers, employees, or delivery times.

- Opportunity costs such as alternative investments, or buying a plant versus building one.

- Cost of potential risks such as regulatory risks, competition, and environmental impacts.

Benefits might include the following:

- Revenue and sales increases from increased production or new product.

- Intangible benefits, such as improved employee safety and morale, as well as customer satisfaction due to enhanced product offerings or faster delivery.

- Competitive advantage or market share gained as a result of the decision.

An analyst or project manager should apply a monetary measurement to all of the items on the cost-benefit list, taking special care not to underestimate costs or overestimate benefits. A conservative approach with a conscious effort to avoid any subjective tendencies when calculating estimates is best suited when assigning a value to both costs and benefits for a cost-benefit analysis.

Finally, the results of the aggregate costs and benefits should be compared quantitatively to deter-mine if the benefits outweigh the costs. If so, then the rational decision is to go forward with the project. If not, the business should review the project to see if it can make adjustments to either increase benefits or decrease costs to make the project viable. Otherwise, the company should likely avoid the project.

Explanation

Decisions regarding stores and warehouse locations involve a complex range of issues that are unique to each business. Most storage facilities and location decisions are based on a combination of qualitative and quantitative analysis.

Qualitative analysis uses subjective judgment to analyze a situation based on non-quantifiable in-formation, such as potential markets for new products, forecast on possible risks that may happen, etc.

Quantitative analysis (QA) is a technique that uses mathematical and statistical modeling, meas-urement, and research to understand behavior. Quantitative analysts represent a given reality in terms of a numerical value. This may include the following:

- Cost analysis for the current premises and future predictions based on current premises

- Cost analysis for routine operations

- Current inventory performance measures: lead times, service levels, rate of stock turn, stock-outs in a given period and stock cover

To get a big picture of current situation and future demands, organisation should combine both qualitative and quantitative methods so that useful information is achieved and well-informed decisions are made.