L4M7 Whole Life Asset Management Questions and Answers

Explanation

Maintenance can represent a significant portion of the cost in asset intensive organisations (such as Sidel - a food processor), as breakdowns have an impact on the capacity, quality and cost of operation. However, the formulation of a maintenance strategy depends on a number of factors, including the cost of down time, reliability characteristics and redundancy of assets. Consequently, the balance between preventive maintenance (PM) and corrective maintenance (CM) for minimising costs varies between organisations and assets. Nevertheless, there are some rules of thumb on the balance between PM and CM, such as the 80/20 rule.

Preventive maintenance is a type of proactive maintenance, while corrective maintenance is an example of reactive maintenance. Therefore, the answer should be "Balance between proactive maintenance and reactive maintenance".

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 system of slip sheet load handling involves the use of a thin sheet of material, the slip sheet, as a base on which items are assembled as a unit load for handling, storage, and transport. The slip sheet is used in conjunction with a pallet, if desired, at certain stages in the distribution cycle. If all lift trucks in the cycle are equipped with the proper attachment, an appropriate slip sheet is the only material handling base required. Slip sheet requires special push pull accessories and usually use thin and wide forks.

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Skids are generally described as single-deck pallets and do not have bottom flatted layer which makes them less bulky and cheaper than conventional pallets but also less universal in their use.

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Shrink wrap, also referred to as shrink film or shrink wrap, is a versatile polymer material used for the packaging of finished goods. Heat is applied to the film – by either a conveyor heat tunnel or an electric or gas heat gun – which catalyzes the film to shrink tightly around the item placed within. This process results in a clear, durable barrier of protection around the product.

Post pallets have a simple metal structure with four uprights and substantial feat to take the load. These may be free standing, but many are designed for the feet to interlock with the posts of another post pallet so that the stack can be created.

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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

Many codes have integrated check digits. These are additional numbers or characters added to codes that a computer uses to verify the number is valid. The intention is to reduce the likelihood of miskeying an item and hitting an alternative live item. More often, a system is devised which a computer can calculate using combination of numbers.

Barcode is a graphic symbol used to convey data. Typically the characters in a barcode symbol consist of bars/space pattern. Barcode is the method of representing data in a visual, machine-readable form. Initially barcodes represented data by varying the width and spacing of parallel lines.

Radio-frequency identification (RFID) uses electromagnetic fields to automatically identify and track tags attached to objects.

A prefix is an affix which is placed before the stem of a word or a string. A product code may have prefix which indicates its group, country, origins, etc.

Explanation

Just-in-time (JIT) purchasing is a systems approach for developing and operating the purchasing function. JIT purchasing along with the total quality management in many industries has been suc-cessful in reducing inventory and increasing the overall effectiveness of purchasing function and hence the productivity of manufacturing.

The just-in-time objectives of eliminating waste can be summarised in the 'five zeros: zero defects, zero set-up times, zero inventories, zero handling and zero lead times.

The correct answer should be 'In JIT purchasing, raw materials (or goods) are purchased so that products are delivered just as needed for production or sales' because it expresses that upstream activity (purchasing) only occurs as the downstream activity (production or sales) triggers.

Explanation

Tote box is the reusable storage box. These can be open or have lids or flaps to close them and come in a large variety of sizes and weight loadings.

A tote is ideal for holding and hauling items such as: tools, fasteners, bark dust, dry cement, cords, wires, smaller boxes,...

Pallets are the platform structures designed to support a load and be lifted using the forks (typically seen on forklift trucks and other equipment). These are in a variety of standard sizes and can be made of many materials including plastics, resin, board or timber. Pallets are not containers, but support platforms.

Bar racks are designed to store bars and pipes

Stock cages are available in many sizes and can hold single items or groups of items

Explanation

The triple bottom line is a sustainability framework that examines a company’s social, environment, and economic impact (or People, Planet, Profit). ASI Ltd practice would reduce the waste into the environment as well as keep the business more profitable. So the correct answer should be Planet and Profit.

Explanation

Two-dimensional (2D) barcodes look like squares or rectangles that contain many small, individual dots. This has many different types (i.e. Data matrix, QR codes, Aztec code,...) and several different standards in use (i.e. GS1 standards, ISO/IEC 18004:2015). It can be substituted for 1D barcode, but it has the capability to hold a larger amount of data. For examples, GS1 Data Matrix can contain 3116 Numeric characters or 2335 Alphanumeric characters while GS1-128 barcode has maximum capacity of 48 characters.

Like 1D barcodes, 2D barcodes are also machine-readable with dots/squares and spaces. They have symbology like this:

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Since the code is two dimensional, conventional laser scanner can't read it. 2D barcodes require imaging scanner to read.

2D barcodes can be also used for different purposes throughout the supply chain: identifying prod-ucts/SKU (single unit, packaged or pallet), identifying content of a purchase order or delivery, identifyingthe batch number from which the item originates, identifying the manufacturer, country of origin etc, tracking status of an order, shipment or delivery

Explanation

ISO 18602:2013 is about Packaging and the environment — Optimization of the packaging system. ISO 18602:2013 specifies requirements and a procedure for assessment of packaging to ensure that the weight or volume of its material content is optimized consistent with the functions of packaging. This is one of several options for reducing the impact of packaging on the environment.

It also provides methodologies and procedures for

- determining the amount and minimization of substances or mixtures hazardous to the environ-ment, and

- determining the amount of four heavy metals (lead, cadmium, mercury, hexavalent chromium) in packaging.

The optimum balance in this standard weighs the environmental impact of losses that may happen with no packaging or inadequate packaging against the environmental impact from excess packag-ing.

The process for packaging design, including material selection, is not part of ISO 18602:2013.

The procedure for applying ISO 18602:2013 is contained in ISO 18601.

Explanation

The costs of stockouts - the costs of being out of inventory - include:

- Loss of production output

- Costs of idle time and of fixed overheads spread over a reduced level of output

- Costs of any action taken to deal with the stockout, such as buying from another stockist at an enhanced price, switching production, obtaining substitute materials

- Loss of customer goodwill due to the inability to supply or late delivery.

(Procurement and Supply Chain management - 9th Edition, K. Lysons and B. Farrington, 2016)

LO 2, AC 2.2

Explanation

Calculating Inventory Turnover (Stock Turn)

As with a typical turnover ratio, inventory turnover details how much inventory is sold over a period. To calculate the inventory turnover ratio, cost of goods (COGS) is divided by the average inventory for the same period.1

Cost of Goods Sold ÷ Average Inventory or Sales ÷ Inventory

In this exercise, the stock turn equal to sales divided by inventory, or 1,000,000:250,000 = 4.

Explanation

There are different types of maintenance that organizations use to increase the uptime of their assets and utility of their facilities. Based on an organization’s budget, amount of resources, level of combined experience, and maintenance goals, one or more maintenance types are used.

Proactive types of maintenance

Preventive maintenance

Preventive maintenance is the most popular type of proactive maintenance. To start conducting preventive maintenance tasks (PMs), an organization does not need to purchase new technology if it already has a CMMS. This is not the case with predictive maintenance which requires condition monitoring sensors and new software integrations. However, with preventive maintenance, the or-ganization runs the risk of over-scheduling maintenance tasks because tasks are scheduled based on time rather than actual conditions. That said, preventive maintenance achieves 12% to 18% cost savings over reactive maintenance.

Predictive maintenance

Predictive maintenance (PdM) is what savvy maintenance teams aspire to have or are already im-plementing. The major barrier to PdM is the time it takes to implement rather than the cost of the technology itself. For instance, a vibration sensor that can identify imbalance, misalignment, and resonance issues only costs around $200. But the time it takes to install, integrate with other maintenance software, and adopt a culture around is not time that all organizations are willing to allocate. For those that do allocate the time, PdM provides an 8% to 12% cost savings over preventive maintenance.

Condition-based maintenance

Condition-based maintenance (CBM) is at the core of predictive maintenance but, on its own, does not rely on technology to determine the condition of an asset like PdM does. For instance, a manager may instruct an operator to monitor the condition of an asset and submit a work request when a specific condition is met. This approach may, or may not be, as reliable as predictive maintenance. An organization that has highly-trained operators may spot hazardous conditions better than an organization using PdM technology that doesn’t know what to look for.

Scheduled maintenance

Scheduled maintenance includes work that is scheduled on a calendar for completion. The most common type of scheduled maintenance is calendar-based preventive maintenance tasks. These are scheduled well in advance of completion. For instance, an asset with a monthly PM has twelve instances of scheduled maintenance in a given year. However, just because maintenance is scheduled does not mean it’s planned. Planned maintenance implies that a maintenance planner or other type of maintenance worker has fully planned for parts, materials, skills, and other resources to be available during the scheduled time window.

Planned maintenance

Planned maintenance is work that’s prepared for in advance of it taking place. According to an UpKeep survey, it’s also the most popular key performance indicator (KPI) to track. A high planned maintenance percentage indicates that a maintenance team will have resources available to complete work for the time/day the work is scheduled for. Having a high planned maintenance percentage also helps boost other maintenance KPIs like schedule compliance. More planned maintenance means more successful completion of scheduled maintenance.

Routine maintenance

Routine maintenance is a form of time-based maintenance and preventive maintenance, though some organizations differentiate between routine maintenance and preventive maintenance. They use the latter for smaller tasks (i.e. cleaning) performed at higher frequencies (hourly, daily) and the former for larger tasks (i.e. inspections) performed at lower frequencies (weekly, monthly, annually). Additionally, routine maintenance is performed by operators, janitors, and other staff member while preventive maintenance is performed by technicians. Non-routine maintenance includes maintenance that is performed reactively or only when needed based on an asset’s conditions.

Reactive types of maintenance

Emergency maintenance

Emergency maintenance occurs when an asset requires immediate attention in order to keep a facility operational or safe. This is the most reactive and intrusive type of maintenance as it pulls technicians away from other jobs and lowers schedule compliance. In extreme circumstances, emergency maintenance can set an organization back days depending on the scope of the repair, available parts, and the asset’s level of importance. To reduce the amount of emergency maintenance that is both unplanned and unscheduled, organizations adopt various forms of proactive maintenance.

Corrective maintenance

Corrective maintenance is inherently part of emergency maintenance because, when there is an emergency, something needs corrected or fixed. In this way, corrective maintenance is mostly reactive. However, it can also be proactive. If an asset with a condition monitoring sensor detects an issue, a workorder is created and a technician is sent to correct it. Similarly, preventive maintenance is considered corrective maintenance if there is an issue to fix. This is rare though as PMs are often conducted when an asset is in good working order.

Other types of maintenance

Deferred maintenance

Deferred maintenance includes repairs and inspections that are put into a backlog due to limited budget and resources. While deferring maintenance saves money up front, the costs of not performing important maintenance compounds at 7% annually. Rising costs come from fines resulting from missed inspections and unscheduled downtime that brings production to a standstill. By far, deferred maintenance and emergency maintenance are the least desired types of maintenance.

Total productive maintenance

Total productive maintenance (TPM) is the broadest type of maintenance that targets more than the assets that need maintained. It also aims to improve employee satisfaction and overall morale in the workplace, specifically in manufacturing plants. TPM does this by increasing overall equipment effectiveness (OEE) and the amount of planned maintenance. More planned work means more workers have the resources they need to do their job, which means higher levels of satisfaction. TPM also leverages machine operators to participate in maintenance and take ownership of their equipment.

Explanation

In management accounting, reorder level (or reorder point) is the inventory level at which a com-pany would place a new order or start a new manufacturing run.

Reorder level depends on a company’s work-order lead time and its demand during that time and whether the company maintain a safety stock.

If a company maintains a safety stock, reorder level calculation changes are follows:

Reorder Level = Average Demand × Lead Time + Safety Stock

Explanation

Unit load is a term used to describe grouping of different items into a convenient stack or stacks which make them easy to handle and store. Typically this involves pallets and/or the plastic wrap-ping of a load.

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 counterbalanced, reach or straddle lift truck.

A load cell is a type of transducer, specifically a force transducer. It converts a force such as ten-sion, compression, pressure, or torque into an electrical signal that can be measured and standard-ized.

Unit price is the price of a single product or service, used for example when buying several things together to refer to the price of each one.

Explanation

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

Explanation

Kanban (看板) (signboard or billboard in Japanese) is a scheduling system for lean manufacturing and just-in-time manufacturing (JIT).

Poka-yoke (ポカヨケ, [poka yoke]) is a Japanese term that means "mistake-proofing" or "inadvertent error prevention". A poka-yoke is any mechanism in any process that helps an equipment operator avoid (yokeru) mistakes (poka). Its purpose is to eliminate product defects by preventing, correcting, or drawing attention to human errors as they occur.

Kaizen is a concept referring to business activities that continuously improve all functions and involve all employees from the CEO to the assembly line workers. Kaizen (改善) is the Sino-Japanese word for "improvement". Kaizen also applies to processes, such as purchasing and logis-tics, that cross organizational boundaries into the supply chain.

Muda (無駄, on'yomi reading) is a Japanese word meaning "futility; uselessness; wastefulness", and is a key concept in lean process thinking, like the Toyota Production System (TPS) as one of the three types of deviation from optimal allocation of resources (the others being mura and muri). Waste reduction is an effective way to increase profitability.

Explanation

Dependent demand is the requirement for stock item which is directly related to and therefore de-pendent upon the rate of production (examples are: raw materials, components, energy).

Independent demand is the requirement for stock item which is not directly related to, and is therefore independent of rate of production.

'Number of independent demand items may be derived from the forecast': Although independent demand is called thus, it can still be influenced by economic factors external to the demand-supply model such as general consumer sentiment and consumers' available disposal income. However, businesses that need to predict the number of products with independent demand needed to sate their customers have it easier than businesses that must calculate the demand for products with dependent demand because there are fewer factors to consider.

'Dependent demand items are not directly correlated with production rate': As mentioned above, dependent demand items are directly correlated with production rate.

'All indirect supplies are independent demand items': Though most indirect supplier are inde-pendent demand, some are determined by the production rate, i.e. energy consumption of a major machinery.

'Car engine is an example of independent demand items in a car assembly plant': Car engine is a component in car which is the finished good of a car assembly plant, it is a dependent demand item.

LO 2, AC 2.1

Explanation

Delphi method is a structured forecasting technique using a panel of experts and a number of rounds of questioning. Responses are shared after each round and the experts encouraged to recon-sider their own responses. It is intended to achieve a consensus view.

Explanation

The net requirements are worked out using the following equation:

Net requirements = Total requirements - Available inventory

Where:

Total requirements = Gross requirements

Available inventory = Inventory on-hand + Units on-order

In the other words: Net requirements = Gross requirements - Inventory on-hand - Units on-order

Inventory on-hand is also known as Inventory level, whereas Units on-order can be called Scheduled receipt.

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

ABC analysis is an approach for classifying inventory items based on the items’ consumption val-ues. Consumption value is the total value of an item consumed over a specified time period, for example a year. The approach is based on the Pareto principle to help manage what matters and is applied in this context:

- A items are goods where annual consumption value is the highest. Applying the Pareto principle (also referred to as the 80/20 rule where 80 percent of the output is determined by 20 percent of the input), they comprise a relatively small number of items but have a relatively high consumption value. So it’slogical that analysis and control of this class is relatively intense, since there is the greatest potential to reduce costs or losses.

- B items are interclass items. Their consumption values are lower than A items but higher than C items. A key point of having this interclass group is to watch items close to A item and C item classes that would alter their stock management policies if they drift closer to class A or class C. Stock management is itself a cost. So there needs to be a balance between controls to protect the asset class and the value at risk of loss, or the cost of analysis and the potential value returned by reducing class costs. So, the scope of this class and the inventory management policies are determined by the estimated cost-benefit of class cost reduction, and loss control systems and processes.

- C items have the lowest consumption value. This class has a relatively high proportion of the total number of lines but with relatively low consumption values. Logically, it’s not usually cost-effective to deploy tight inventory controls, as the value at risk of significant loss is relatively low and the cost of analysis would typically yield relatively low returns.

LO 2, AC 2.1

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

Raw materials are basic input materials - they are only processed limitedly or have not been pro-cessed at all. Their values are equal to acquisition cost and are the lowest value of stock held.

Secondary components are the products that are combined with others to produce the finished goods. They are acquired in the processed state. Their value is higher than raw materials, but still at acquisition cost.

Work in progress is the stock part-way through manufacture that has not been finished. It is typically not completed yet, so it doesn't have full value. But the costs of processing already carried out makes it more valuable than materials and components.

Finished goods are completed and ready to be used or sold. Finished goods are the most expensive and need to be stored in good conditions.

Explanation

Materials that will not easily deteriorate, are generally stored in open or fairly covered areas (stockyard). The materials are usually in bulk, like steel plates or coils casting, timber coal, steel barrels, cable drums, piping, lampposts, lorries, etc.

Stockyards are open or semi-covered areas that are used for the following:

- Bulk loose or packaged materials

- Bulky or oversized items that may be difficult to move inside

- Materials that may require specialised handling, loading or unloading

Below image shows the example of a stockyard that stores loose coal and its handling system.

LO 1, AC 1.1

Explanation

Enterprise resource planning (ERP) is the integrated management of main business processes, often in real time and mediated by software and technology. ERP provides an integrated and con-tinuously updated view of core business processes using common databases maintained by a data-base management system. ERP systems track business resources—cash, raw materials, production capacity—and the status of business commitments: orders, purchase orders, and payroll. The applications that make up the system share data across various departments (manufacturing, purchasing, sales, accounting, etc.) that provide the data. ERP facilitates information flow between all business functions and manages connections to outside stakeholders.

Manufacturing resource planning (MRP II) is defined as a method for the effective planning of all resources of a manufacturing company. Ideally, it addresses operational planning in units, financial planning, and has a simulation capability to answer "what-if" questions and extension of closed-loop MRP. This is not exclusively a software function, but the management of people skills, requiring adedication to database accuracy, and sufficient computer resources. It is a total company management concept for using human and company resources more productively.

A master production schedule (MPS) is a plan for individual commodities to be produced in each time period such as production, staffing, inventory, etc. It is usually linked to manufacturing where the plan indicates when and how much of each product will be demanded. This plan quantifies significant processes, parts, and other resources in order to optimize production, to identify bottlenecks, and to anticipate needs and completed goods. Since a MPS drives much factory activity, its accuracy and viability dramatically affect profitability.

Procure-to-pay (P2P) is a term used in the software industry to designate a specific subdivision of the procurement process. The procure-to-pay systems enable the integration of the purchasing department with the accounts payable (AP) department. Some of the largest players of the software industry agree on a common definition of procure-to-pay, linking the procurement process and financial department.

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

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 1990s when 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

Multiple approval levels for a small purchase request is an example of over-processing since this adds more unnecessary work to users and procurement professionals.

Explanation

Tail Spend is derived from ABC Analysis, Class A high value suppliers, Tail Spend is formed from class B & C suppliers, equates to 20% of the total spend, B is Mid Tail and C is Long tail. Effective Spend Analysis and tail spend management, ensures that procurement can focus on creating an optimum and efficient sourcing strategy.

Procurement Spend Analysis

Procurement organisations effectively identify and manage suppliers using a sourcing strategy. Tail suppliers normally have low strategic value and makes the category management, very difficult . SpendAnalysis and Category Management are very closely aligned, Spend Analysis including ABC, provides the category manager, with spend visibility.

Spend Analysis and procurement metrics are used to create category plans, build supplier relation-ships, to maintain service levels and deliver the best possible price and quality for goods and ser-vices bought. The acquisition of Spend data and subsequent Spend Analysis, provides Category Managers access to a well-structured procurement process,

Explanation

The bullwhip effect (or Forrester effect) is a distribution channel phenomenon in which forecasts yield supply chain inefficiencies. It refers to increasing swings in inventory in response to shifts in customer demand as one moves further up the supply chain.

Seasonal demand: consumer interest in purchasing particular products only during a specific peri-od within the calendar year.

OPITZ is a coding system used to form Groups in Group Technology philosophy of Manufactur-ing.

The Pareto Curve is the shape created when the bars of a Pareto Chart are progressively summed and the points joined together. The final curve ends at 100% of items in the chart, which means that you can then draw a line across at 80% and 'bounce' it down to find the bar which, when combined with all bars to its left, will give 80% of all items.

Explanation

JIT, often referred to as the Toyota production system (TPS), originated in Toyota’s manufacturing plants in Japan in the early 1970s. It was first introduced by the organisation's owner, Taiichi Ohno. The prime goal of JIT is the achievement of zero inventories.

The just-in-time objectives of eliminating waste can be summarised in the 'five zeros: zero defects, zero set-up times, zero inventories, zero handling and zero lead times.

Explanation

In inventory management, service level is the expected probability of not hitting a stock-out during the next replenishment cycle or the probability of not losing sales.

Key performance indicators (KPIs) can be used to analyse data based on performance objectives and set actionable goals for improvement. KPIs can be developed in conjunction with suppliers as well as others, and can be used to measure the essential elements of the process.

Safety stock is the amount of inventory a business needs to have to achieve a certain level of risk mitigation when it comes to stockouts.

Reorder level (or reorder point) is the inventory level at which a company would place a new order or start a new manufacturing run.

Explanation

Consignment stock is stock legally owned by one party, but held by another, meaning that the risk and rewards regarding to the said stock remains with the first party while the second party is re-sponsible for distribution or retail operations. Ownership of consignment stock is passed only when the stock is used (issued or sold in the case of a shop). Unused stock in a warehouse may be returned to the supplier when it concerns standard manufactured products. With customer specific items, agreements concerning returning products, should be negotiated.

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

Costs of holding inventory include the following:

• Acquisition cost

• Inventory holding cost

• Costs of stock-outs

Acquisition costs follow the typical procure-to-pay model. Benefits of procure-to-Pay (P2P) software include:

- Vendor Management, which includes researching, selecting, engaging with, and evaluating the performance of suppliers who make up your supply chain.

- Purchase Requisition Workflows, or the formal process of creating and submitting a purchase requisition (PR) for approval to meet a specific business need.

- Purchase Order (PO) Workflows, covering the creation of a formal, detailed PO from the purchase requisition, including information on the quantity and quality of goods and services, as well as specific terms and conditions.

- Receiving, which includes the acceptance of physical goods (or review of quality and completion for services) and entering the accepted order into inventory, tracking, and accounting systems.

- Invoice Management, during which the invoice is compared to the original PO to verify pricing, quality, quantity, and terms have been met.

- Accounts Payable Workflows, wherein the accounts payable department processes the invoice for payment, submits the payment to the vendor, and reconciles any related financial entries in the accounting system.

The software is intended to help reduce the acquisition costs.

LO 2, AC 2.2

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

The ISO 14000 family of standards are developed by ISO Technical Committee ISO/TC 207 and its various subcommittees. For a full list of published standards in the series see their standards catalogue. ISO 14001 provides requirements with guidance for use that relate to environmental systems. Other standards in the family focus on specific approaches such as audits, communications, labelling and life cycle analysis, as well as environmental challenges such as climate change.

ISO 27000 family of standards concerns information technology, with the goal of improving security and protecting company assets. Started in 2005, the two most popular standards are ISO 27001:2013 and 27002:2013. 27001 is management-based system, whereas 27002 is a technical document, focused on the individual and putting a code of conduct in place. Organizations can choose either standard; ISO 27001 has over 22,000 certifications worldwide. It is a broad standard, and for this reason the certification can be customized to fit the needs of the organization, and is not mandatory.

ISO 22000 sets out the requirements for a food safety management system and can be certified to it. It maps out what an organization needs to do to demonstrate its ability to control food safety hazards in order to ensure that food is safe. It can be used by any organization regardless of its size or position in the food chain.

ISO 9001 is a family of quality management standards, there are fourteen in total. Of these, ISO 9001:2015 is the only one that can be certified to. It was first published in 1987, and has since been updated about every 7 years. The standard details how to put a Quality Management System (QMS) in place to better prepare your organization to produce quality products and services. It is customerfocused, and places an emphasis on continuous improvement and top management processes that extended throughout the organization.

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.