upply chain phenomenon where small changes in customer demand cause increasingly larger changes in orders as you move up the supply chain—from the retailer to the wholesaler, distributor, and manufacturer.
It’s called the “bullwhip” effect because the pattern looks like a whip: a small flick at the handle (customer demand) creates a big wave at the end (manufacturer orders).
Citation: Gallaugher, J. (2025). Information Systems: A Manager's Guide to Harnessing Technology (with SmartGrader for Excel). (10.1.4). FlatWorld.
Core Competency
Something a company does exceptionally well—a deep strength that gives it a competitive advantage and is central to its identity. It’s not just a product or service, but a capability that’s hard to copy and valuable to customers
Citation: Gallaugher, J. (2025). Information Systems: A Manager's Guide to Harnessing Technology (with SmartGrader for Excel). (10.1.4). FlatWorld.
Disintermediation
When a company removes one or more steps—or organizations—from its supply chain or distribution process. This is often described as “cutting out the middleman,” and instead selling directly to the consumer.
Citation: Gallaugher, J. (2025). Information Systems: A Manager's Guide to Harnessing Technology (with SmartGrader for Excel). (10.1.4). FlatWorld.
Distributor
An entity that acts as an intermediary between manufacturers and retailers, wholesalers, or consumers, responsible for purchasing goods in bulk, storing them, and managing logistics
A business and marketing strategy that integrates all available sales and communication channels—physical stores, websites, mobile apps, social media, and support centers—to provide a seamless, unified experience for customers, regardless of how they interact with the brand.
Citation: Gallaugher, J. (2025). Information Systems: A Manager's Guide to Harnessing Technology (with SmartGrader for Excel). (10.1.4). FlatWorld.
Point of Sales (POS) System
The hardware and software combination used to process retail transactions, acting as a modern, digital cash register.
Citation: Hayes, A. (2024). How Point of Sale (POS) Works. Investopedia. https://www.investopedia.com/terms/p/point-of-sale.asp
Logistics
The strategic, end-to-end management of moving resources, materials, and finished goods from points of origin to their final consumption.
Citation: Gallaugher, J. (2025). Information Systems: A Manager's Guide to Harnessing Technology (with SmartGrader for Excel). (10.1.4). FlatWorld.
RFID
(Radio Frequency Identification) in business is a wireless technology that uses radio waves to automatically track, identify, and manage assets, products, or personnel in real-time. It uses tags (chips + antennas) attached to items and readers to scan them instantly without direct line-of-sight, enhancing inventory accuracy, reducing labor costs, and boosting supply chain visibility.
Citation: What is RFID? | Zebra. (n.d.). Zebra Technologies. https://www.zebra.com/us/en/resource-library/faq/what-is-rfid.html
Vertical Integration
Companies control multiple stages of their supply chain—from raw material production to final retail distribution—to increase efficiency, lower costs, and ensure quality control.
Citation: Gallaugher, J. (2025). Information Systems: A Manager's Guide to Harnessing Technology (with SmartGrader for Excel). (10.1.4). FlatWorld.
Practice Quiz
1. Maria runs a popular campus coffee cart. She used to buy her roasted beans from a local wholesale supplier, but she frequently faced frustrating delays that hurt her morning sales. Recently, she decided to buy her own coffee farm in South America and a roasting facility in Austin. She now grows, roasts, and brews all the coffee herself to maintain total control over her supply and ensure she never runs out of beans.Which concept best explains Maria's new business strategy?
Contract Manufacturing
Vertical Integration
Disintermediation
Economies of Scale
Answer: B ~ Vertical integration occurs when a single firm owns several layers in its supply chain, just as Maria now owns the farming, roasting, and retailing stages. Contract manufacturing involves outsourcing production to third-party firms, which is the opposite of owning the facilities. Disintermediation is removing middlemen to sell directly to consumers. Economies of scale refer to cost advantages from increased production size, which does not directly describe the act of buying supply chain layers.
2. A local bakery installs a brand-new, expensive point-of-sale computer system and gives all its cashiers shiny new tablets. However, the managers do not change the way they take custom cake orders, and employees are never trained on the new system's scheduling features. As a result, wait times actually increase and complex orders are still getting lost in the kitchen.
Which component of the information system was MOST neglected in this scenario?\
Hardware
Software
Data
Processes
Answer: D ~ In the five-component information systems model, processes refer to the procedures and standardized routines that people follow. The bakery upgraded its hardware (tablets) and software, but neglected to update its business processes or train its people, causing the system to fail. Data refers to the raw facts gathered, which was not the root cause of the failure.
3. A student relies heavily on an Apple ecosystem, owning a MacBook, an iPhone, and an Apple Watch. All her class notes, photos, and messages are seamlessly synced via iCloud. She considers buying a cheaper Android phone but realizes it would take days to manually transfer her files, and she would lose access to all her purchased iOS applications. She ultimately decides to stay with Apple.
Which barrier to entry or competitive concept is MOST significant in her decision?
Economies of scale
Vertical integration
Switching costs
Moore's Law
Answer: C ~ Switching costs represent the direct or indirect expenses, time, and effort a customer incurs when changing from one product or supplier to another. Economies of scale refer to cost advantages companies gain from high production volume. Vertical integration is a strategic supply chain decision used by firms, not a consumer barrier. Moore's Law deals with the exponential advancement of computing power over time.
4. A small manufacturer makes highly complex, specialized graphing calculators. They try to save money by selling directly to high school students through a basic website. However, students rarely buy them because they want to physically hold the calculator, ask questions about its features, and easily return it if they drop a class. Sales plummet without a physical store to handle these tasks.
What is the MOST likely reason this direct-to-consumer strategy failed?
The manufacturer suffered from the Bullwhip Effect
The manufacturer failed to vertically integrate their production
The manufacturer triggered a massive network effect
The manufacturer undervalued the shopping experience and convenience provided by retailers.
Answer: D ~ Retailers and distributors add significant value to a supply chain by providing a physical shopping experience, convenience, and crucial customer service for unfamiliar or complex products. The Bullwhip Effect is about distorted inventory forecasting. Vertical integration concerns owning the supply chain layers, which they already do for manufacturing. Network effects occur when a product's value increases with its user base.
5. A tech startup creates a wildly popular fitness tracking app. The engineering team codes the app, the marketing team runs social media campaigns, and the customer service team handles user complaints. Meanwhile, the human resources department spends their time recruiting new engineers and managing employee payroll in the background.
According to the Value Chain model, how should the human resources department's role be classified?
As a primary activity, because they deal with people directly
As a network effect, because they grow the team
As an inbound logistics activity, because they bring in talent
As a support activity, because they provide the infrastructure for the main operations
Answer: D ~ In the Value Chain model, human resources is a support activity that provides the necessary background infrastructure, allowing primary activities to function effectively. Primary activities directly involve creating, marketing, or selling the product to the consumer. Network effects describe user-based value growth, not internal hiring. Inbound logistics is a primary activity involving receiving raw physical materials, not recruiting human talent.