Unit 1.1
Introduction to Information Systems
🎯 Learning Objectives
By the end of this session, you will be able to:
- ✅ Define what an Information System (IS) is and its purpose.
- ✅ Differentiate between data, information, and knowledge.
- ✅ Identify and describe the five core components of an IS.
- ✅ Understand the strategic role of IS in modern organizations.
What is an Information System?
An Information System (IS) is a formal, sociotechnical, organizational system designed to collect, process, store, and distribute information.
In simple terms, it's the backbone of modern business operations.
It helps organizations manage activities, interact with customers, and gain a competitive edge. ⚡
🖥️ IS vs IT: Not the Same Thing
Information Technology (IT)
The technology: computers, networks, software, storage.
Example: a bank buys 200 new computers.
Information System (IS)
Technology plus people, data and processes, working toward a business goal.
Example: the bank's loan-approval system: staff, rules, customer data and software together.
IT is one part of an IS. Buying technology does not give you a working system.
The Value Chain: Data to Knowledge 📊
Data
Raw, unorganized facts and figures. Meaningless on its own.
250
Information
Data that is processed and given context to become useful.
"250 momos sold today"
Knowledge
Information analyzed to find patterns and insights for decision-making.
"We sell 250 momos every Friday. We should prep more for the weekend rush."
Classify It: Data, Information, or Knowledge?
Read each item and click the correct category. Instant feedback!
🎬 Data, Information, Knowledge
IS: The Bridge from Data to Decisions
Raw Data
Information System
(Collects, Processes, Stores)
Actionable Knowledge
The primary role of an IS is to transform raw data into valuable knowledge that drives strategy.
The 5 Core Components of an IS
An information system is an integrated set of five components that must work together.
- Hardware - The physical tech
- Software - The instructions for the tech
- Data - The raw facts
- People - The users and operators
- Processes - The rules and procedures
Think of it as a recipe: you need all the ingredients (components) in the right amounts, following the right steps (processes), to get the desired result.
IS Component Identifier
Read each scenario and click which IS component it describes.
Components 1 & 2: The Technology
1. Hardware
The physical equipment used to input, process, and output data.
- Computers & Laptops
- Servers & Storage Drives
- Keyboards, Monitors
- Networking Gear (Routers)
2. Software
The programs and instructions that tell the hardware what to do.
- System Software: Windows, macOS, Linux
- Application Software: MS Word, CRM, Inventory Systems
Component 3: Data 💾
Data refers to the raw facts that the information system collects, stores, and processes.
- Considered a critical organizational asset.
- Can include customer details, sales figures, inventory levels, employee records.
- Typically managed using a Database Management System (DBMS).
Components 4 & 5: The Human Element
4. People
The most crucial component! People design, build, maintain, and use the system.
- End-Users (employees, customers)
- IT Professionals (developers, analysts)
- Managers
5. Processes
The policies, procedures, and rules that govern how the system is used to achieve business goals.
- How to process a new order
- Password security policies
- Steps for generating a monthly report
🍫 Real Case: Hershey's Missing Halloween (1999)
- Hershey, the US chocolate maker, replaced its old systems with a new ERP and order system.
- It squeezed the project into about 30 months and went live in July 1999, just before its busiest season.
- Staff weren't ready, and order and warehouse processes broke. Sweets sat in warehouses while shops waited.
- About US$100 million of Halloween orders could not be delivered.
The software worked. The People and Processes components were not ready.
🎬 Why Hershey's ERP Failed
🧪 Activity: Which Component Failed?
1. A hospital installs new patient-record software, but nurses keep using paper because nobody trained them. → People
2. An exam-results website crashes when thousands of students log in at once. → Hardware (server capacity)
3. A shop's sales system shows the wrong stock because staff type items in differently each time. → Data (quality), caused by missing Processes
4. A cooperative has computers but still keeps accounts in a notebook because it has no accounting program. → Software
Practical Application: A Nepali Business
Example: Paying an electricity bill with Khalti in Nepal
Let's break down this process using the 5 components:
- Hardware: Your smartphone, Khalti's servers, the Nepal Electricity Authority's servers.
- Software: The Khalti mobile app, the phone's OS (Android/iOS), the backend server applications.
- Data: Your login credentials, your customer ID, the bill amount, the transaction record.
- People: You (the user), Khalti's support team, the developers who maintain the app.
- Processes: The step-by-step procedure for logging in, selecting the utility, entering details, and confirming payment.
National QR Payments in Asia
Quick Quiz: Know Your Components?
Four questions — pick the best answer and see why.
The Strategic Role of IS ⚡
Information Systems are not just for daily tasks. They provide a powerful strategic advantage.
- Support Decision-Making: Provides managers with real-time data and reports to make informed choices.
- Enhance Operational Efficiency: Automates repetitive tasks, reduces errors, and streamlines business processes.
- Gain Competitive Advantage: Enables new products, services (like online banking), and better customer relationships (CRM).
👗 Real Case: Zara's Strategic IS
- Store managers report what customers buy, ask for and reject, and sales data flows to the head office in Spain every day.
- Designers use it to decide what to make next, so new styles can reach stores in about two to three weeks, while traditional fashion often takes months.
- Small batches mean fewer unsold clothes and fewer heavy discounts.
Here the IS is the competitive advantage: speed from data to decision.
🎬 Zara's Store Data
🏢 Four Types of IS, by Level of Management
| Type | Who uses it | What it does |
|---|---|---|
| TPS Transaction Processing | Front-line staff | Records every routine transaction, fast and accurately |
| MIS Management IS | Middle managers | Summarises TPS data into regular reports |
| DSS Decision Support | Managers and analysts | Models "what-if" options for a specific decision |
| ESS Executive Support (also called EIS) | Top executives | Big-picture dashboards with internal and external trends |
Data flows upward: TPS feeds MIS, and both feed DSS and ESS.
✈️ Worked Example: One Airline, Four Systems
A domestic airline flying Kathmandu–Pokhara:
- TPS: books each ticket and records each seat, payment and boarding pass.
- MIS: a monthly report shows that 92% of Pokhara morning seats were filled.
- DSS: the planning manager tests "What if we add a second morning flight?" against fuel, crew and demand.
- ESS: the CEO's dashboard compares revenue with competitors, tourist arrivals and fuel prices.
Figures are example data.
IS Type Classifier: TPS / MIS / DSS / ESS
Match each business scenario to the correct Information System type.
🔍 Key Takeaways
- An IS is a system of five core components that transforms raw data into valuable knowledge.
- The five components are Hardware, Software, Data, People, and Processes. All are essential.
- The "human element" (People and Processes) is just as critical as the technology.
- Information Systems play a vital strategic role in efficiency, decision-making, and gaining a competitive edge.
True or False? Rapid-Fire Round!
Eight statements — answer as fast as you can!
💬 Discuss in Pairs (3 minutes)
1. Choose a business you used this week (a bank, a ride app, a shop). Name all five components of its IS.
2. Which component do Nepali organisations most often neglect, and why?
3. Your college's admission system: which parts are TPS, and what MIS report would the principal want?
Exam Practice 📝
Short answer
- Define an information system.
- Distinguish between data, information, and knowledge with examples.
- List the five components of an information system.
Exam Practice 📝 (continued)
Long answer
- Explain the five components of an information system and how they work together, using an organization in Nepal as an example.
- Describe how an information system converts data into information and knowledge for decision making.
Revise the answers in the full note.
Image & Video Credits
Images
- Batelco Network Operations Centre (NOC): Masdestructive, CC BY-SA 3.0, via Wikimedia Commons
- Datacenter Server Racks: Carl Lender, CC BY 2.0, via Wikimedia Commons
- Hershey Factory: Antarctic96, CC BY-SA 3.0, via Wikimedia Commons
- Integrated QR Code Payment Systems in Asia: Bamboofirdaus, CC0, via Wikimedia Commons
- Zara Store Sydney: Mw12310, CC BY-SA 3.0, via Wikimedia Commons
Videos (YouTube)
- KnowledgeMT, "Data-Information-Knowledge in 3 minutes or less" (37–110 s)
- YB.Digital, "Hershey's ERP Failure Explained" (20–89 s)
- Prof. John Gallaugher, "Zara - Fast Fashion from Savvy Systems" (167–255 s)
Thank You!
Any questions?
Next Up: Unit 1.2 - Why is Studying IS Important?