Fundamentals of Business Information Systems

Fundamentals of Business Information Systems

Chapter 1: An Introduction to Information Systems in Organizations

Principles of Information Systems

  • The value of information is directly linked to how it aids decision makers in achieving organizational goals.

  • Knowledge of the impact of information systems can enhance personal careers, aid organizations in reaching their goals, and improve society's quality of life.

  • Collaboration among system users, business managers, and information systems professionals is crucial for building successful information systems (IS).

  • The ability to add value through information systems is significantly influenced by the organizational structure as well as its attitude and capacity for change.

  • Cooperation between business managers and IS personnel is key to unlocking the potential of new or updated systems.

Defining an Information System
What is a System?

  • A system is defined as a set of elements or components that interact to achieve certain objectives.

  • Systems consist of:

    • Inputs: The raw data or resources brought into the system.

    • Processing mechanisms: The methods used to transform inputs into outputs.

    • Outputs: The results produced by the system after processing.

    • Feedback: Information that is returned to the system to adjust its processes.

  • Examples of systems include:

    • Automatic car washes

    • Heating systems in buildings

    • The human body.

What is Information?

  • Information is a collection of facts that can exist in various formats, such as:

    • Text

    • Numbers

    • Images

    • Audio clips

    • Video clips

  • The term data is closely aligned with information; the two terms can often be used interchangeably.

Information System Defined

  • An information system (IS) is a set of interconnected components that:

    • Collect (input),

    • Manipulate and store (process),

    • Disseminate (output) information,

    • Provide feedback mechanisms to meet specific objectives.

  • In this context:

    • Input refers to the gathering and capturing of data.

    • Processing entails converting or transforming input into useful outputs.

    • Output involves producing informative results, typically as documents and reports.

    • Feedback encompasses information used to make changes to input or processing activities.

Characteristics of Valuable Information

  • For information to be useful to managers, it should ideally possess some or all of the following characteristics:

    • Accessible

    • Accurate

    • Complete

    • Economical

    • Flexible

    • Relevant

    • Reliable

    • Secure

    • Simple

    • Verifiable

    • Timely

Types of Information Systems
Manual and Computerized Information Systems

  • Information systems can be categorized as either:

    • Manual: paper-based systems.

    • Computerized:

    • A computer-based information system (CBIS) is a harmonious combination of hardware, software, databases, telecommunications, people, and procedures designed to collect, manipulate, store, and process data into information.

Hardware

  • Hardware refers to the physical components of a computer system that facilitate:

    • Input activities: Devices such as keyboards, mice, automatic scanners, and magnetic ink character readers.

    • Processing activities: Components such as computer chips with CPUs and main memory.

    • Output activities: Devices including computer screens and printers.

Software

  • Software comprises the computer programs governing a computer's operations. It can be divided into two categories:

    • System Software: Controls basic operations; an example includes Microsoft Windows.

    • Applications Software: Software for specific tasks, such as Microsoft Excel for spreadsheet tasks.

Databases

  • A database is an organized collection of facts and information, typically with two or more related data files. Common contents include data on:

    • Customers

    • Employees

    • Inventory

    • Competitors' sales

    • Online purchases

Telecommunications, Networks, and the Internet

  • Telecommunication involves the electronic transmission of signals for communication, enabling processes and tasks across computer networks.

  • A network connects computers and equipment across different scales, from local buildings to global connections.

  • The Internet represents the largest computer network globally, made up of thousands of interconnected networks allowing free information exchange.

People in Information Systems

  • Individuals are the most crucial component in most computer-based information systems. This category includes:

    • Users of the system.

    • Information systems personnel: those who manage, run, program, and maintain the system.

Procedures in Information Systems

  • Procedures outline strategies, policies, methods, and rules for utilizing the CBIS, including operation, maintenance, and security measures.

    • Effective procedures can help organizations capitalize on new opportunities and mitigate potential threats.

    • Poorly designed procedures risk wasting time or failing to adequately address emergencies.

Business Information Systems

  • The prevalent types of information systems in business settings are focused on:

    • Electronic and mobile commerce

    • Transaction processing

    • Management information

    • Decision support

  • These systems assist employees in performing routine and specialized tasks and are often integrated into singular software packages.

Electronic and Mobile Commerce (E-commerce)

  • E-commerce refers to any business transaction conducted electronically. Major forms include:

    • B2B (Business-to-Business): Transactions between companies.

    • B2C (Business-to-Consumer): Transactions between companies and consumers.

    • C2C (Consumer-to-Consumer): Transactions between consumers directly.

  • B2B is the dominant segment of e-commerce, further enriched by the rapid growth of mobile commerce (m-commerce), which allows transactions to occur anytime and anywhere using wireless devices.

Transaction Processing Systems (TPS)

  • A Transaction Processing System (TPS) is a specialized Enterprise System comprising:

    • Organized collections of people, procedures, software, databases, and devices aimed at recording business transactions.

    • Examples of transactions include payments to employees, sales to customers, and supplier payments.

Enterprise Resource Planning (ERP)

  • An Enterprise Resource Planning (ERP) system integrates multiple programs to manage the essential business operations of a global organization.

    • ERP systems vary in scope between companies but commonly include features for managing manufacturing and finances, such as inventory scheduling and production management to fulfill customer demand.

Management Information Systems (MIS)

  • A Management Information System (MIS) is a structured collection of people, procedures, software, databases, and devices providing regular information for managers. Key aspects include:

    • Focus on operational efficiency.

    • Outputs from a TPS serve as inputs to an MIS, generating standard reports derived from TPS data.

Decision Support Systems (DSS)

  • A Decision Support System (DSS) is a systematic collection of components that aid in specific decision-making scenarios when problems arise that are complex and difficult to navigate.

    • Organizations may choose to implement either separate systems for TPS, MIS, and DSS or a unified ERP system that encompasses functionalities of all three.

Specialized Business Information Systems

  • Knowledge Management Systems (KMS) facilitate the storing, sharing, and utilizing organizational knowledge and experience.

  • Artificial Intelligence (AI) aims to mimic human cognitive functions within computer systems, with applications in robotics and natural language processing.

  • Virtual Reality entails creating simulated environments that are visually experienced in three dimensions.

Systems Development

  • The systems development process involves creating or altering business systems, which can be broken down into various stages:

    • Systems Investigation: Understanding the problems to be addressed.

    • Systems Analysis: Identifying the issues and opportunities present in the current system.

    • Systems Design: Establishing the operational framework of the new system to meet business requirements.

    • Systems Implementation: Acquiring and assembling necessary components (hardware, software, databases, etc.) and operationalizing the new system.

    • Systems Maintenance and Review: Ongoing checks and modifications to meet changing business needs.

Introduction to Organizations

  • An organization is defined as a formal collective of individuals and resources aimed at achieving set goals.

  • Organizations, like systems, have:

    • Inputs (resources such as materials, personnel, and finances),

    • Processing mechanisms that transform inputs,

    • Outputs that usually constitute goods or services of greater value than the raw inputs.

Value Chain Analysis

  • The value chain is a strategic tool for understanding how value is added in the operational process. It consists of a series of activities including:

    • Inbound logistics

    • Warehousing and storage

    • Production

    • Finished product storage

    • Outbound logistics

    • Marketing and sales

    • Customer service

  • Utilizing information systems can help emphasize activities that contribute maximum value.

Organizational Change

  • Organizations are perpetually in a state of flux, influenced by:

    • Leadership changes

    • Employee turnover

    • Competitive pressures

    • Economic conditions

    • Legal adjustments

  • New information systems often trigger significant organizational change. Some members may need to champion the new system to ensure full acceptance and efficiency.

User Satisfaction and Technology Acceptance

  • For reengineering efforts and continuous improvement to be successful, they must lead to user satisfaction and widespread acceptance. Relevant concepts include:

    • Technology Diffusion: The extent to which technology spread through an organization.

    • Technology Infusion: The depth to which technology is embedded within a specific department or area.

  • High levels of diffusion and infusion do not automatically imply that systems are utilized to their full potential.

Competitive Advantage

  • A competitive advantage refers to a firm's ability to outperform its sector, securing higher profits than industry averages.

  • Competitive advantage can arise from:

    • Superior product quality

    • Enhanced customer service

    • Lower operational costs

  • Often, developing a well-structured information system is critical to achieving competitive advantage.

Evaluating Information Systems (IS)

  • After implementing an IS, it is vital for management to evaluate its effectiveness in achieving defined goals. Common evaluation approaches include:

    • Productivity: Assessing changes in output post-implementation.

    • Return on Investment (ROI): Analyzing profit increases.

    • Earnings Growth: Reviewing the increase in profits.

    • Market Share: Investigating changes in market presence since the IS was introduced.

    • Customer Awareness and Satisfaction: Utilizing qualitative measures to gauge user satisfaction.

    • Total Cost of Ownership (TCO): Estimating all costs associated with the IS, including acquisition and ongoing operations.

Careers in Information Systems

  • Various roles within information systems include:

    • Chief Information Officer (CIO)

    • LAN Administrators

    • Internet roles such as web operations, development, and administration

    • System developers

    • Technical writers

    • User interface designers

    • Database administrators.

Summary

  • Information is defined as a collection of facts organized in a way that adds value.

  • A system is a collection of elements that interact to achieve specified goals.

  • The components of an information system are input, processing, output, and feedback.

  • A computer-based information system (CBIS) includes hardware, software, databases, telecommunications, personnel, and procedures that work together to process data into useful information.

  • A transaction processing system (TPS) is pivotal in recording completed business exchanges.

  • A management information system (MIS) delivers routine information to managers.

  • A decision support system (DSS) aids problem-specific decision-making.

  • Systems development entails modifying existing systems.

  • An organization functions as a system, processing inputs for desired outputs, and seeks to maintain a competitive edge and assess the efficiency of its information systems effectively.