Information Systems in Business: Definitions, Types, and Roles

Core Concepts of Information Systems (IS)

Information Systems (IS) are the backbone of modern businesses, integrating technology, people, and processes to collect, process, store, and distribute information. They enable organizations to achieve efficiency, effectiveness, and competitive advantage.

1. Definition and Components of IS

An Information System (IS) is a combination of:

• Hardware (physical devices like servers, computers, and networks)
• Software (applications, databases, and operating systems)
• Data (raw facts and figures)
• Procedures (instructions and rules for operations)
• People (users, managers, and IT staff)

mindmap
  root((Information System))
    Hardware
      Computers
      Servers
      Networks
    Software
      Applications
      Databases
      OS
    Data
      Raw Inputs
      Processed Outputs
    Procedures
      Workflows
      Policies
    People
      Users
      IT Staff
      Managers

Example: When you use eSewa to pay your electricity bill, the system processes your transaction through hardware (servers), software (payment gateway), data (your account details), procedures (payment rules), and people (customer service agents).

Types of Information Systems

Information Systems are classified based on their scope, function, and level in an organization.

Classification by Scope

Classification by Level in Organization

mindmap
  root((Information Systems by Level))
    Operational Level
      TPS
      Example: Daraz order processing
    Managerial Level
      MIS
      Example: Pathao driver scheduling
    Strategic Level
      DSS & ESS
      Example: Ncell network expansion planning

How Information Systems Work: A Worked Example

Let’s trace how Khalti processes a payment request:

1. Input: User enters card details in the Khalti app.
2. Processing: Khalti’s servers verify the transaction with the bank.
3. Storage: Transaction data is stored in a secure database.
4. Output: User receives a confirmation receipt.
5. Feedback: Bank updates the sender’s account balance.

flowchart LR
  A["User Inputs Payment"] --> B["Khalti Server"]
  B --> C["Bank Verification"]
  C --> D["Database Update"]
  D --> E["Confirmation Sent"]
  E --> F["Account Balance Updated"]

Real-World Tie: This is similar to how Nabil Bank’s online banking processes loan repayments—automated, secure, and efficient.

Advantages and Disadvantages of IS

Case Study: Daraz Nepal

• Advantage: Uses ERP systems to manage inventory, reducing stockouts.
• Challenge: Faces cybersecurity threats (fake orders, payment fraud).

Information Systems in Business Strategy

IS plays a critical role in:

1. Operational Excellence (e.g., Pathao’s ride-hailing algorithm optimizes driver routes).
2. New Products/Services (e.g., eSewa’s digital wallet expanded financial inclusion).
3. Customer & Supplier Intimacy (e.g., Toyota’s supply chain IS tracks parts globally).
4. Survival (e.g., NTC’s digital billing reduced manual errors).

mindmap
  root((IS in Business Strategy))
    Operational Excellence
      Example: Pathao’s route optimization
    New Products/Services
      Example: eSewa’s digital wallet
    Customer Intimacy
      Example: Daraz’s personalized recommendations
    Survival
      Example: NTC’s digital billing

In the Real World

1. eSewa uses Transaction Processing Systems (TPS) to handle millions of daily transactions securely.
2. Nabil Bank employs Management Information Systems (MIS) to track loan defaults and approve new loans.
3. Daraz relies on Enterprise Resource Planning (ERP) to manage inventory across Nepal, reducing delivery delays.

Worked Example: Kathmandu Traffic Routes

• Problem: Traffic jams waste time and fuel.
• Solution: Smart traffic management systems (like those in Pokhara) use sensors and AI to optimize signal timings, reducing congestion by 20-30%.
• IS Used: Real-time data processing + Decision Support Systems (DSS) for dynamic route adjustments.

Exam Tip

This unit is heavily tested in TU exams through:

• Definitions (e.g., "What is a TPS?")
• Classifications (matching IS types to examples)
• Case Studies (e.g., "How does Khalti use IS?")
• Diagrams (flowcharts of processes like eSewa payments)

Key Focus Areas: ✅ Memorize the 4 types of IS (TPS, MIS, DSS, ESS) and their business applications. ✅ Draw a flowchart for a real-world process (e.g., NTC billing or Daraz order fulfillment). ✅ Compare IS advantages/disadvantages with Nepali business examples. ✅ Link IS to strategy (e.g., how ERP helps Daraz compete with physical stores).

Common Mistake to Avoid: ❌ Mixing up TPS (operational) and MIS (managerial)—always relate them to the level in the organization.