INFORMATION SYSTEMS

Introduction to Information Systems

  • Defined as an organized network for the collection, storage, and communication of information.

  • Contains components: hardware, software, databases, networks, procedures, and users.

Transformation in Business

  • Global IT spending: nearly $3.8 trillion (2019).

  • Requires organizational and cultural changes to maximize IT value.

Characteristics of Digital Firms

  • Business relationships digitally enabled.

  • Core processes through digital networks.

  • Key assets managed digitally.

  • Offers organizational flexibility (time and space shifting).

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Functions of Information Systems

  • Activities: Input, Processing, Output, Feedback.

  • Distinction between computer programs and information systems.

  • Data vs. Information: Data is raw facts; Information is processed data.

Components of Information Systems

  • Hardware: physical artefacts (e.g., computers, phones).

  • Software: programs for data processing.

  • Databases: organized data tables.

  • Networks: connections between elements.

  • Procedures: methods for data processing.

  • People: users interacting with systems.

Types of Information Systems

  • Executive Information System (EIS): supports senior decision-making.

  • Decision Support System (DSS): helps compile useful information for problem-solving.

  • Management Information System (MIS): provides management tools for organization.

  • Transaction Processing System (TPS): handles business transaction processes.

Business Functions Supported by Information Systems

  • Sales and Marketing: product/service sales.

  • Manufacturing and Production: product/service delivery.

  • Finance and Accounting: financial record management.

  • Human Resources: employee management and record maintenance.

Strategic Objectives of Information Systems

  • Improve operational efficiency for profitability.

  • Align IT investments with business strategies.

  • Enable new products/services and business models.

  • Enhance decision-making through timely information.

  • Achieve competitive advantage and business survival.

Organizational Dimensions

  • Structure includes levels: senior management, middle management, operational staff.

  • Knowledge workers vs. data workers: roles in innovation vs. support.

Technology Dimensions

  • Hardware: components for input, processing, output.

  • Software: controls hardware operations.

  • Networking: connects computers for data sharing (Intranet, Extranets).