IT Architecture Overview and Evolution
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Questions and Answers

What is one of the main considerations in IT architecture?

  • Integration of systems (correct)
  • User interface design
  • Development costs
  • Hardware utilization
  • Which layer is NOT part of the standard IT architecture?

  • Business Application Layer
  • Application Layer
  • Middleware Layer (correct)
  • Service Layer
  • What is a key benefit of using Application Service Providers?

  • Permanent installation
  • Lower dependency on network
  • Always updated versions (correct)
  • High customization options
  • In large enterprises, who is typically responsible for IT planning?

    <p>IT department</p> Signup and view all the answers

    What is a potential disadvantage of Application Service Providers?

    <p>Limited functionality</p> Signup and view all the answers

    Which layer is considered the base layer architecture in IT?

    <p>Infrastructure Layer</p> Signup and view all the answers

    What should be assessed to determine IT investment?

    <p>Current technology trends</p> Signup and view all the answers

    What is an example of a component at the base layer of IT architecture?

    <p>General purpose application software</p> Signup and view all the answers

    What is the primary purpose of IT architecture in an enterprise?

    <p>A set of devices and applications required to operate the entire enterprise</p> Signup and view all the answers

    Which of the following eras in the evolution of IT architecture started in 2000?

    <p>Cloud and Mobile Computing Era</p> Signup and view all the answers

    Which technology driver is primarily associated with the concept of increasing performance through miniaturization and power of computing?

    <p>Moore’s Law</p> Signup and view all the answers

    What is a major consideration in IT architecture that addresses the fast pace of technological change?

    <p>Future Proofing</p> Signup and view all the answers

    Which of the following is NOT a component of IT architecture?

    <p>Sales strategies</p> Signup and view all the answers

    Standardization in IT architecture aims to achieve which of the following?

    <p>Buying the same products from vendors for consistency across users</p> Signup and view all the answers

    Which of the following best describes the service layer in IT architecture?

    <p>The collection of software applications that business functions depend on</p> Signup and view all the answers

    What is one of the key effects of BYOD (Bring Your Own Device) on IT architecture?

    <p>Need for enhanced security measures and policies</p> Signup and view all the answers

    What is Total Cost of Ownership primarily concerned with?

    <p>The overall expenses linked to technology usage</p> Signup and view all the answers

    Which step is NOT included in creating an IT architecture plan?

    <p>Evaluate employee satisfaction</p> Signup and view all the answers

    In Total Cost of Ownership, which of the following is part of running costs?

    <p>Ongoing maintenance expenses</p> Signup and view all the answers

    Which component is included in the ICT costs when assessing a business strategy?

    <p>Support services for users</p> Signup and view all the answers

    What does 'BYOD' stand for in an IT context?

    <p>Bring Your Own Device</p> Signup and view all the answers

    Which factor is crucial to understand market demand in IT planning?

    <p>Competitor service offerings</p> Signup and view all the answers

    Which of the following would NOT be a part of the installation costs?

    <p>Training sessions for users</p> Signup and view all the answers

    Which step involves assessing the infrastructure to match technological needs?

    <p>Creating a plan</p> Signup and view all the answers

    What is a primary goal of conducting an IT assessment?

    <p>Evaluate technology-related expenses</p> Signup and view all the answers

    Which aspect is focused on supporting technology users in an organization?

    <p>Training programs</p> Signup and view all the answers

    Study Notes

    IT Architecture

    • IT architecture is a set of physical devices and software applications needed for enterprise operation
    • It's also a collection of firm-wide services budgeted by management; includes humans and technical capabilities
    • Key questions about IT architecture include: what is it? What drives its evolution? How do trends impact its management?

    General Hardware Components

    • Computer hardware platforms
    • Operating system platforms
    • Enterprise software applications
    • Data management and storage
    • Networking/telecommunications platforms
    • Internet platforms
    • Consulting system integration services

    Evolution of IT Architecture

    • General-Purpose Mainframe and Minicomputer ERA (1959-Present)
    • Personal Computer Era (1981-Present)
    • Client/Server Era (1983-Present)
    • Enterprise Computing Era (1992-Present)
    • Cloud and Mobile Computing Era (2000-Present)

    Technology Drivers

    • Moore's Law (related to transistors)
    • Mass Digital Storage
    • Metcalfe's Law
    • Cloud Computing
    • Mobile Devices
    • BYOD (Bring Your Own Device)

    Considerations in IT Architecture

    • Future Proofing: Adapting to rapid technological advancements to ensure the IT system can handle future needs
    • Standardization: Using the same products from vendors to reduce maintenance and training costs potentially reducing costs overall
    • Integration: Systems should connect logically to avoid data duplication (avoid "information silos")

    Base Layer Architecture

    • Hardware
    • Network
    • Systems Software
    • General Purpose Application Software

    Application Service Providers

    • Key Benefits: Ubiquitous access, always available, updated data/versions, pay-as-you-go service model
    • Disadvantages: Limited functionality (in the past), vendor control of software and data

    Governance Structures

    • Small/Medium Enterprises: Generally have no dedicated IT department; planning & management responsibility typically falls on managers. Outsourcing is often used.
    • Large Enterprises: Dedicated IT departments/specialists manage planning; IT responsibilities are often clearly delineated.

    Determining IT Investment

    • Consider how current technology trends impact the industry
    • Evaluate market demand for products and services
    • Assess competitor offerings
    • Align ICT (information and communication technology) costs with business strategy

    Total Cost of Ownership

    • Technology costs are more than just initial investment (acquisition)
    • Includes ongoing expenses (running costs, maintenance, support, downtime, installation, and training), also indirectly including acquisition and/or licensing when applicable

    Creating an IT Architecture Plan

    • Determine requirements
    • Collate requirements and match them to available technologies
    • Create an IT architecture plan

    Have a Think...

    • Google "BYOD" (Bring Your Own Device)
    • Consider reasons for and against allowing BYOD in a workplace setting

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    Description

    Explore the essential components and evolution of IT architecture, including hardware, software, and networking. This quiz covers historical eras of computing, technology drivers, and management considerations. Test your knowledge on how these elements contribute to enterprise operations.

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