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Information Systems. System. A System is a collection of parts that work together to achieve a common goal. Information System. An Information System as a broad , Generic class of systems that Create, Process and Disseminate information.

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Information Systems

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Information systems

Information Systems



  • A System is a collection of parts that work together to achieve a common goal.

Information system

Information System

  • An Information System as a broad , Generic class of systems that Create, Process and Disseminate information.

  • They are guided by a set of Policies, Principles, Procedures and Resources which helps in facilitating Organizational Decision Making.

Information systems


  • Data can be text, numbers, audio, video, images or any combination of these.



  • When we process data and convert it into a form that is useful and meaningful to the decision maker, it becomes Information.

Characteristics of information

Characteristics of Information

  • Relevance

  • Timeliness

  • Accuracy

  • Correct Information Format.

  • Completeness

  • Accessibility

Converting data into information

Converting Data Into Information

  • Collection

  • Classification

  • Sorting, Adding, Merging

  • Summarizing

  • Storing

  • Dissemination

Sources of data

Sources Of Data

  • Customer

  • Supplier

  • Functional Department.

  • Competitors

  • Distributors

  • Others

Need of information systems

Need Of Information Systems ?

  • Meeting Global Challenges

  • Capturing Opportunities in Marketplace

  • Linking Departments whose functions are different

  • Enhancing Employee Productivity

Pyramid structure information need

Pyramid Structure – Information Need

  • Top Management- (Strategic Decisions)

  • Middle Management- (Tactical Decisions)

  • Lower Management-(Operational Decisions)

Top management strategic decisions

Top Management – Strategic Decisions

They used to establish the Vision and the long term Goal of the organization.

Their Decisions rely heavily on Intuition, Judgments, and Experience.

Example- Predicting the impact on change in Global Economy.

Middle management tactical decisions

Middle Management – Tactical Decisions

They used to coordinate, Control, and Monitor Various activities and act as Liaison between Operational Managers and Top Management.

Example – Assessing the impact of different marketing strategies on Product sales.

Lower management operational decisions

Lower Management – Operational Decisions

They are responsible for the day to day Operations, activities and transactions of an Organization.

Example – Inventory Control

Information systems support

Information Systems Support

Personal Information Systems

Work Group Information Systems

Organization Wide Information Systems

Personal information systems

Personal Information Systems

These Supports the Information needs of individual decision makers for solving Structured, Semi Structured and Unstructured task.

Example- To Analyze market trends over the next five years.

Work group information systems

Work Group Information Systems

Many important decisions in an Organization are made by a group of individuals.

Example- Launching New Product requires team effort and free sharing of information among group members.

Organization wide information systems

Organization Wide Information Systems

Information Systems that provides comprehensive long term information about the entire organization

Example- If a Customer wants to know the status of His Order ?

Front office information systems

Front Office Information Systems

Front-Office Information Systems support business functions that extend out to the organization’s customers (or constituents).

  • Marketing

  • Sales

  • Customer management

Back office information systems

Back Office Information Systems

Back-officeinformation systems support internal business operations of an organization, as well as reach out to suppliers (of materials, equipment, supplies, and services).

  • Human resources

  • Financial management

  • Manufacturing

  • Inventory control

Types of information systems

Types Of Information Systems

Transaction Processing System

Management Information System

Decision Support System

Executive Support System

Expert System

Office Automation System

Communication and Collaboration System

Transaction processing system

Transaction Processing System

A Transaction Processing System (TPS) is an information system that captures and processes data about business transactions.

Management information system

Management Information System

A Management Information System (MIS) is an information system that provides for management-oriented reporting based on transaction processing and operations of the organization.

Decision supports system

Decision Supports System

A Decision Support System (DSS) is an information system that either helps to identify decision making opportunities or provides information to help make decisions.

Executive supports system

Executive Supports System

An Executive Information System (EIS) is an information system designed for top-level managers that integrates data from all over the organization into “at-a-glance” graphical indicators and controls.

Expert system

Expert System

An expert system is an information system that captures the expertise of workers and then simulates that expertise to the benefit of nonexperts.


Office automation system

Office Automation System

An Office Automation System is an information system that supports the wide range of business office activities that provide for improved work flow between workers.

Communication and collaboration system

Communication And Collaboration System

A Communications And Collaboration system is an information system that enables more effective communications between workers, partners, customers, and suppliers to enhance their ability to collaborate.



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